Alternatives to Sendmail

Critical Impact allows you to amplify and facilitate your email marketing strategies. Our platform allows you to efficiently monitor your email and messaging portfolio, send edited and scheduled emails and text messages (SMS) for your advertising efforts with an affordable pricing structure. Our subscriber assessment technique digs deep into your data to quickly find the subscribers who are most likely to read your next email, receive more emails, or make an additional purchase. With our user-friendly interface, you can schedule the forwarding of your communications in seconds. Choose your sending options on a single page, then avoid errors by viewing the configuration of all your submission details. Even rate your email on display, from phone, tablet to monitor.

Partner with the email service trusted by developers and marketers for time-savings, scalability, and delivery expertise. The Twilio SendGrid Email API and proprietary Mail Transfer Agent (MTA), intuitive console, powerful features, and email experts make it easy to ensure all your email gets delivered in seconds and without interruption. Whether you’re sending 100 emails or 100 billion, SendGrid is built to scale, while maximizing inbox placement and protecting your reputation as a trusted sender. Monitor engagement data and optimize deliverability with our Deliverability Insights dashboard. Integrate with our RESTful APIs and SMTP in minutes, with sample code libraries available in 7 languages, interactive docs, templates, and more.

qmail serves as a robust, secure, and efficient message transfer agent that prioritizes simplicity. Its emphasis on security is not merely an aspiration but a fundamental necessity, given the critical nature of mail delivery for users, which must remain uninterrupted and entirely secure. With a philosophy that ensures a message, once accepted, is never lost, qmail adopts a straight-paper-path approach to guarantee reliability. Additionally, it offers optional support for maildir, a highly reliable mailbox format that prevents corruption during system crashes—unlike traditional mbox files and mh folders. This feature allows users to read their emails safely over NFS, with the added advantage that multiple NFS clients can deliver emails concurrently. Notably, qmail's design is considerably more compact than other Internet MTAs, which often rely on separate mechanisms for forwarding, aliasing, and mailing lists; instead, qmail streamlines this with a singular forwarding system that empowers users to manage their own mailing lists efficiently. Ultimately, qmail stands out not just for its performance but also for its innovative approach to email management.

Reliable SMTP relay services and email delivery services. You can send and track large volumes of emails with ease using powerful email delivery services. In minutes, integrate and you can start sending. All your email delivery, transactional and email relay needs are covered under one roof. SMTP can deliver whether you need a reliable backend solution or scalable infrastructure to handle large volumes of emails. Reputation Defender, SMTP's proprietary technology, uses big data to proactively monitor and protect your email list health. It also suppresses bad emails from soft and hard bounces in order to protect your IP reputation and domain. This will ensure that your delivery rates and inbox placement gradually improve over time.

Dovecot stands out as a remarkable option for installations of any size, whether small or large. Notably, it ranks among the top IMAP servers, offering robust performance while seamlessly supporting both mbox and Maildir formats. Its mailboxes come with transparent indexing that enhances speed and retains full compatibility with traditional mailbox management tools. Adhering to industry standards, Dovecot successfully passes all compliance tests for IMAP servers, unlike many of its competitors that often fall short. One of its impressive features is the self-optimizing indexes, which provide just the necessary information that users typically require without excess. Additionally, Dovecot incorporates self-healing capabilities, autonomously addressing many issues it detects, such as corrupted index files, while ensuring that any problems encountered are logged for further investigation by administrators. Furthermore, Dovecot is designed with user-friendliness in mind, as it aims to present common error messages in a straightforward and comprehensible manner, making it easier for administrators to resolve issues. Overall, Dovecot's combination of performance, compliance, and user-centric features makes it a top-tier choice for email server solutions.

MailerQ is an efficient on-premise Mail Transfer Agent (MTA) designed to handle the delivery of millions of emails daily. With a strong emphasis on performance, usability, and data insights, it features a user-friendly Management Console, REST API, and essential tools for serious senders aiming to enhance their sender reputation and delivery success. This versatility is why MailerQ is quickly becoming the go-to choice for various senders, including Email Service Providers, e-commerce businesses, financial institutions, and government agencies. The Management Console provides real-time visibility into delivery attempts, results, queues, and error logs, allowing users to analyze performance per MTA, IP address, target audience, and even specific customers, campaigns, or message types. Additionally, the ability to track response patterns enables the classification of bounces, management of feedback loops, and adjustment of MTA behavior in response to server replies. As a result, users can significantly improve their email deliverability and maintain a strong sender reputation, ensuring their communications reach the intended recipients effectively. This comprehensive approach not only streamlines the email delivery process but also empowers senders to make data-driven decisions for ongoing improvements.

Implementing DKIM signing enhances the likelihood of your emails landing in the inboxes of providers such as Gmail and Office365. With multiple servers based in the USA and Europe, our service ensures enhanced reliability. Say goodbye to the stress of overseeing your own email server and managing its IP reputation. You can effortlessly create SPF and DKIM records for your domains, even without any prior experience. In the event of IP blacklisting, our SMTP relay service can effectively address your reputation issues. We offer round-the-clock technical support through phone, chat, or email, committed to guaranteeing the successful delivery of your emails. This means you will be able to consistently deliver your messages straight to the inbox. Our team meticulously optimizes sending routes while keeping a close eye on our IP reputations to provide you with the highest quality service. We uphold a Zero Spam Policy that enables us to block or limit messages that could jeopardize our reliability or your reputation. Additionally, once your domain ownership is verified through DNS, you can send emails from an unlimited number of "From" addresses or domains, giving you the flexibility needed for your communication needs. This comprehensive approach not only simplifies the email sending process but also enhances your overall email strategy.

Elevate your Email Marketing strategy without breaking the bank. By utilizing a dedicated IP address, you can enhance your sender reputation and reduce the risk of being blacklisted due to the actions of others. This approach demonstrates authenticity, ensuring recipients know that the email is genuinely from your business and domain, while also significantly decreasing the likelihood of your messages being flagged as spam by employing advanced cryptographic signatures like SPF and DKIM. Our SMTP servers guarantee that your emails are dispatched through a secure SSL connection, and they do so at remarkable speed. You can track the performance of each mailing list, including the total number of emails sent, conversions achieved, and links clicked, along with a wealth of other insightful data. Additionally, our SMTP service provides comprehensive sending and delivery error reports that are easily downloadable to your device. Importantly, you can rest assured that your emails will not reach any unsubscribed recipients, even if they are listed elsewhere. This ensures that your emails consistently land in inboxes rather than getting lost in spam folders, ultimately enhancing your marketing effectiveness and engagement rates.

Labnify offers a Mailer with an inbuilt SMTP relay system so that you won't need to provide one, ensuring you can send and monitor bulk emails cost-effectively. Included features are real-time analytics, open and click tracking, bounce and spam monitoring, a template builder, among others. Avoiding blacklisting is crucial, so our advanced blacklist monitoring constantly checks your sender reputation, helping your emails reach inboxes. Additionally, Labnify prioritizes email authentication, employing DKIM and SPF protocols for enhanced delivery rates and security. Handling millions of emails is seamless with Labnify. Import your email list and send without any pesky SMTP credentials, streamlining your email marketing process. Built on a cost-effective Email API, our platform supports vast scalability and excellent deliverability, capable of managing over 100 million emails monthly through our highly efficient system.

SendPost replaces manual hacks, messy workarounds and daily frustrations associated with your email API/SMTP provider. If you send a few thousand emails, most email API solutions will work well. You will choose one based on its price, features, or support. If you are a big sender, sending millions of emails each month, the real problem is here. This is when managing multiple domains, IP-Pols, and IP/Domain reputation becomes a major headache. Even a small drop in your email open rate, or delivery, can have a significant impact on your revenue. You need a solution that helps you identify the problem and provides quick solutions. You don't want spend hours looking through logs to determine if your domain, IP or sending reputation are low.

Reliable cloud-based email hosting includes features such as spam filtering, antivirus protection, ample storage, and webmail access. It seamlessly integrates with Outlook as well as various other POP3/IMAP clients. For users with high sending needs, it offers a robust SMTP service designed for responsible senders. Additionally, there is an outbound relay service tailored for transactional emails, marketing campaigns, newsletters, and diverse applications. The infrastructure supports dedicated email servers, clustering, and multiple IP load balancing to accommodate high-volume senders effectively. With a fixed monthly fee, users benefit from unlimited sending capabilities and reputation monitoring. Greatmail stands out as an email service provider (ESP) focused on delivering business-class email hosting, SMTP hosting, and specialized email servers. Furthermore, for ISPs, software developers, and cloud architects, we also create custom solutions featuring dedicated IP servers and load-balanced configurations with multiple servers to meet specific processing needs. This commitment to adaptability ensures that all clients receive the best possible service, tailored to their unique requirements.

PowerMTA is a robust email message transfer agent (MTA) designed for enterprises needing to send large volumes of critical emails. It can be deployed on your own servers or hosted on various public cloud platforms like Amazon Web Services and Microsoft Azure. With its exceptional reliability and advanced analytics, PowerMTA empowers users with complete oversight of their email campaigns. The software enhances performance, improves deliverability, and boosts team productivity thanks to its easy setup, minimal hardware requirements, and comprehensive analytics tools. Experience PowerMTA in conjunction with Signals, starting at $8,000 annually, to leverage volume pricing. This offering includes SparkPost Signals, which provides an in-depth analysis of your email performance across domains, campaigns, and individual recipients, enabling you to fine-tune your email strategies and proactively address potential issues. PowerMTA ensures unparalleled delivery rates and operates efficiently within a secure SMTP framework, allowing for rapid sending while maintaining full control over your email operations. With this powerful tool, organizations can transform their email marketing efforts and achieve remarkable results.

Bulk Mailer stands out as an exceptional email marketing tool designed for the creation, dispatch, and tracking of large-scale messages. This software includes a proprietary SMTP server, which facilitates the direct delivery of mass emails to recipients' inboxes. By using Bulk Mailer, you can effectively assess the success of your email campaigns, allowing you to see who opened your emails, as well as when and where they did so. With this mass email solution, managing your contact lists and crafting tailored HTML messages becomes a seamless task. This program is essential for anyone orchestrating bulk email initiatives, as its robust features guarantee impressive outcomes and provide a competitive edge over your business competitors. Bulk Mailer supports various mailing list formats, including those created in Access, Excel, DBF, and Word, as well as ASCII text files (.txt, .lst), and it notably allows for an unlimited number of email addresses to be entered. Additionally, the software offers an extremely adaptable sending engine, ensuring that your email campaigns run smoothly and efficiently. Overall, Bulk Mailer is an invaluable asset for maximizing the impact of your email marketing strategies.

Postmastery delivers a comprehensive platform for professional email monitoring that extends well beyond mere ‘click & open’ metrics. Its Delivery Analytics system analyzes SMTP delivery information from both local mail servers and SMTP service providers, incorporating data from Microsoft SNDS, Return Path Sender Score, along with various blacklists. Users are equipped with real-time dashboards and benefit from automatic notifications. Issues like high bounce rates, prolonged delivery times, landing in junk folders, or being blacklisted can severely hinder email marketing efforts and adversely affect your company's reputation. To proactively manage these challenges, Postmastery establishes a benchmark for improvement and conducts thorough email delivery evaluations. Additionally, should the situation require it, our team offers direct support at the infrastructure level. By turning to Postmastery for your delivery monitoring needs, you can concentrate on your primary business operations while leveraging our extensive email delivery expertise, tools, and resources available through our 'email delivery control centre.' This partnership ensures that your email campaigns are not just effective but also aligned with best practices in the industry.

PostageApp is an Email Service Provider (ESP) designed for simplicity and efficiency, allowing users to get set up in just minutes with our straightforward email service. We prioritize modern deliverability practices, including DKIM, SPF, strict RFC compliance, and full engagement in ISP Feedback Loops, ensuring that our users benefit from top-tier email performance. Our plans, tailored for startups, begin with shared options that facilitate the launch of your MVP and transition smoothly to dedicated IP solutions as your application scales, empowering you to manage your reputation and optimize delivery rates. With a strong emphasis on developer support, our tools are designed for hassle-free integration, while our team of in-house deliverability experts continuously monitors your performance to enhance inbox placement. Additionally, our comprehensive reporting, tracking, and analytics features offer valuable insights into the effectiveness of your email campaigns, helping you make informed decisions for future outreach efforts. This commitment to user success ensures that you not only send emails but also achieve meaningful engagement with your audience.

You can effortlessly send emails to anyone without limitations on capacity or traffic, as our mail server operates seamlessly whether you are at home on your desktop or on the go with a laptop, tablet, or smartphone. Forget about the hassles of blacklisting, maintenance, updates, and downtime; our robust SMTP cloud servers ensure that your email campaigns reach audiences worldwide. By opting for a dedicated SMTP cloud server, you can send emails using your own IP address and domain, allowing you to maintain complete control over the reputation of your communications. For those in need of a comprehensive professional solution to manage email lists and create top-notch email content, we provide Mailwizz. The volume of emails sent continues to rise, and no new products have emerged to challenge email's status as the most direct means of engaging recipients. In marketing strategies, email consistently stands out with the highest return on investment compared to other platforms like social media, solidifying its essential role in effective communication. Its enduring effectiveness and reliability make email an indispensable tool for marketers aiming to connect with their audience.

Track delivery, clicks and bounce rates in real-time. Welcome to the lightning-fast delivery of transactional emails. Create beautiful, responsive emails with our drag-and drop email template builder in minutes. Supercharge your emailing abilities with our fully-warm-up dedicated IP address. Receive real-time notifications regarding email events. Use our webhooks for tracking email delivery, bounces and more. Get detailed, real-time reports on emails sent and opened. Using valuable insights, you can enhance your user's experience. Manage bounced emails with ease while ensuring that recipients who received the emails are not contacted again. Use our email API or the traditional SMTP to send emails via HTTP requests. Our email API integrates seamlessly with your website or app to ensure that your emails are delivered directly to your inbox.

Cybercriminals often employ forged emails to deceive both your customers and employees into revealing their login credentials. They may also send counterfeit invoices to your business partners and suppliers, creating further chaos. Additionally, these malicious actors distribute harmful emails that contain malware, such as ransomware, which can severely impact your organization. Furthermore, they utilize email spoofing techniques to sell illicit products, including weapons and drugs, while masquerading as reputable brands. To combat these threats, DMARC serves as an email validation protocol that hinges on two widely recognized authentication methods, SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail). SPF functions by allowing the recipient's mail server to verify whether the email sender's server is permitted to dispatch emails on behalf of the organization, thereby enhancing security. Meanwhile, DKIM employs a cryptographic method that utilizes both public and private keys to authenticate messages, ensuring their integrity during transmission from sender to recipient mail servers. Implementing these protocols is crucial in safeguarding against email-based attacks.

Reliable delivery of your application emails. ActiveCampaign Postmark delivers your email on time and every time to customers. Customers expect transactional emails to arrive promptly, not later. We monitor our delivery times and share the data with the public. Our knowledgeable support team is always available to assist you, via 1-on-1 calls, webinars or email. Postmark integrates seamlessly into any stack thanks to its API libraries that support almost every programming language.

Amazon Simple Email Service (SES) offers an economical, adaptable, and scalable solution for sending emails from various applications. It allows quick configuration to cater to multiple email scenarios, such as transactional messages, marketing campaigns, or large-scale communications. The service enhances deliverability and safeguards sender reputation through its flexible IP deployment and email authentication features, while sending analytics provide insight into email performance. With Amazon SES, users can securely send emails on a global scale and handle large volumes effortlessly. Whether utilizing the Amazon SES console, APIs, or SMTP, you can set up email dispatch in just a matter of minutes. Additionally, Amazon SES enables email reception, facilitating effective customer engagement on a large scale. Importantly, you only incur costs based on your actual usage of the service, making it a budget-friendly option for businesses of any size. Furthermore, this service is designed to meet the evolving needs of developers and marketers alike, ensuring they can communicate effectively with their audiences.

Our marketing automation capabilities are available across all subscription tiers. In addition, we seamlessly connect with over 300 applications. Initiate your automation process for new leads from any external platform; for instance, when new leads are generated in Calendly, lead nurturing automation kicks in automatically. Our service features a built-in delivery engine that boasts a remarkable 98% email deliverability rate. Engage your audience effectively by automatically sending emails according to a predetermined schedule. Furthermore, we help you maintain a clean email list by removing invalid addresses prior to any campaign launches. Our intuitive email builder allows you to create emails swiftly. You can also set up automatic follow-up emails for recipients who do not open your initial messages. Manage all your subscribers effortlessly from a single dashboard, and easily import email addresses into your Pabbly Email Marketing list. Additionally, you can incorporate a subscription form on your website to capture leads directly. When a newcomer subscribes to your email list, a welcome email is dispatched automatically, ensuring that every new subscriber feels valued right from the start. This comprehensive approach streamlines your marketing efforts and enhances your engagement with potential customers.

To utilize our service, you will need to make adjustments to your domain name system (DNS) records, but don't worry—if you're uncertain about how to do this, we can assist you at no cost! Upon registration, we offer you an SMTP connection for your mass email client and a complimentary online sending platform. Our responsibility includes monitoring and maintaining the servers to ensure you achieve an impressive 98% deliverability rate! It’s important to keep your recipients list clean and up to date. We offer dependable and adaptable SMTP servers that can handle various circumstances effectively. There are primarily two types of email delivery: mass emails and transactional emails. While we recommend our service for mass email campaigns, transactional emails are also supported! Simply let us know your intended use, and we’ll make the necessary adjustments to optimize your experience. We understand that email deliverability is a priority for you, which is why we regularly conduct our own email marketing campaigns to evaluate performance and ensure continuous improvement. Additionally, we are committed to keeping you informed about the latest trends and best practices in email marketing.

SMTP2GO is a reliable outgoing email service that allows you to track and send all emails securely and easily. SMTP2GO has a redundant, multi-data center infrastructure that allows users send emails even during an internet outage. SMTP2GO features include real-time analytics and bounce/spam tracking, weekly summaries spamtrap detection, blacklist monitor, DKIM/SPF and many other features.

Recognizing the crucial impact of marketing on business success, we have developed our Instant Bulk SMTP service, which enables you to launch your email campaigns in under 30 minutes. You can efficiently manage multiple contact lists with options to add, remove, delete, and import or export your data seamlessly. Our platform provides detailed email analytics, allowing you to monitor bounces, opens, and click-through rates effectively. Integrating with your applications is straightforward, and upgrading to a higher plan is hassle-free. Instant Bulk SMTP serves as an outgoing email service, empowering you to send emails from your own address, regardless of whether you have your own software. Unlike conventional email marketing solutions, our high-volume SMTP hosting allows you to send emails directly from your application server, email client, or even a mix of different sources, giving you unparalleled flexibility. This innovative approach ensures that your marketing efforts are both efficient and effective, helping your business thrive in a competitive landscape.

EmailSuccess provides high volume email sending with enterprise-level SMTP Servers. EmailSuccess can be used as a Mail Transfer Agent (MTA) for all sizes of senders: ESPs and Marketing Automation Companies. High Performance EmailSuccess, an MTA, is designed to deliver large volumes of email. It gives the business full control over the Speed, Latency and Deliverability parameters. Deliverability Clients must be able to deliver their messages quickly. You must ensure that your email is not blocked by spam filters and lands in your inbox. Advanced Sending Intelligence Optimized delivery through automatic and real-time tuning of email delivery parameters; platform tuning is made easy.

Utilizing an SMTP relay service such as Miogmail is an effective way to initiate the process of sending both marketing and transactional emails. You can dispatch messages based on specific triggers or conduct ongoing bulk email campaigns without interruption. The platform allows for the creation of visually appealing and customized email templates through an intuitive drag-and-drop editor, or you can opt for pre-designed responsive templates that fit your needs. Prioritizing security, the service ensures a robust email infrastructure that integrates SSL, DKIM, DMARC, SPF, and TLS for utmost protection. Additionally, you can enhance your email delivery rates with advanced management tools and a dedicated IP address. Whether you’re crafting personalized transactional, promotional, or newsletter emails, the platform provides the necessary resources. Furthermore, you have the option to leverage either transactional or promotional SMTP or SMTP API for the distribution of bulk emails efficiently. This flexibility allows businesses to reach their audiences effectively while maintaining a professional appearance in their communications.

MailerSend is a transactional messaging service designed for developers to work faster and smarter. Intuitively designed so anyone can contribute to transactional email and SMS, while powerful infrastructure and flexible payment plans let you scale quickly. Built by deliverability experts to ensure your messages get delivered, plus dedicated IPs available for high-volume senders.

Exim serves as a mail transfer agent (MTA) for Unix-like operating systems. Initially developed by Philip Hazel in 1995 for the University of Cambridge Computing Service's email systems, Exim is released under the GPL, allowing users to freely download, utilize, and modify it. While it shares some similarities with Smail 3, Exim has evolved to offer greater user-friendliness and flexibility. Both Exim and Smail 3 operate on the Sendmail design model, where a single main binary manages all MTA functionalities. Although this monolithic architecture is sometimes viewed as less secure and slower, Exim boasts a superior security record compared to Sendmail and matches the performance of Qmail and Postfix, particularly in advanced functions like queue management, address routing, and testing. Notably, Exim lacks a built-in Graphical User Interface (GUI) for configuration, although some Linux distributions may provide one, enhancing its accessibility for users who prefer a visual approach. As a result, Exim remains a versatile choice for those looking to manage email systems effectively.

Introducing Brevo, previously known as Sendinblue — your go-to platform for enhancing customer connections through various channels like Email, SMS, and Chat. This comprehensive toolkit is designed to transform casual visitors into loyal customers. Engage your audience by reaching them directly in their inboxes with visually appealing email campaigns, and send tailored messages that go right into your customers' hands. Brevo enables businesses to cultivate and strengthen relationships through tools such as marketing automation, email outreach, transactional messaging, and SMS services. What sets us apart? Our exceptional customer happiness team drives Brevo, and our flexible pricing plans are sure to bring a smile to your face. With a seamless integration of diverse services in a single, easy-to-use platform, we strive to make your sending experience enjoyable and effective!

Bird, previously known as MessageBird, represents the future of CRM tailored for Marketing, Sales, and Payments, facilitating more than 5 trillion messages each year across platforms like Email, SMS, and WhatsApp. Top brands efficiently enhance their growth through Bird by engaging in tailored interactions across these channels. Innovative organizations around the globe utilize Bird's robust applications and APIs to create effective communication solutions. Start your journey today and connect with your customers seamlessly across various channels, catering to diverse use cases regardless of location. You can send marketing messages, push notifications, order confirmations, delivery updates, and much more. If operational challenges are hindering your growth, leverage automated conversations and workflows to gather essential information upfront, minimize manual tasks, establish self-service options, and direct chats to the appropriate agents. With our dependable, auto-scaling APIs, you can quickly get started with extensive documentation, comprehensive API references, and user-friendly SDKs at your disposal. Experience the power of streamlined communication and watch your business thrive.

Multi-channel marketing automation platform that allows marketers to create personalized promotional campaigns. You can choose from SMS, email, or web push notification. Or you can combine multiple channels into one campaign to create a complex message sequence. The platform offers all the tools necessary to automate email marketing. You can also create subscription forms and grow your mailing list. Drag and drop is intuitive and allows users to create mobile-friendly email templates. Or, they can choose from a large gallery of predesigned templates. The company also offers a transactional email service, which allows users to send up 12000 emails for free via SMTP and API. SendPulse offers its own chatbot creator. You can create a Telegram chatbot or a Facebook Messenger chatbot to send personalized messages or as an autoresponder.

Email marketing services empower your business to reach out to consumers at any time you choose. While it's not essential for every communication to be a direct sales approach, maintaining contact with customers should always offer them something beneficial. If you're on the lookout for a transactional SMTP service, you likely have an application designed to dispatch either marketing or transactional emails and are in need of a reliable host to send these messages in large volumes. You can build fully automated campaigns utilizing an incredibly user-friendly workflow builder that enables you to apply tags, trigger campaigns, introduce delays, and implement if-then logic, among many other features. This robust functionality enables businesses to operate efficiently and effectively. Enhance your sales through email marketing that truly connects with your audience, while our platform assists in nurturing leads by assigning points, ultimately transforming them from prospects into loyal customers. By leveraging these capabilities, your business can create a more engaging and impactful email marketing strategy.

Transactional emails: Reach your inbox when it matters most Send personalized, fast transactional emails via API or SMTP. Enjoy the benefits of our global experience sending billions upon billions of emails. Personalized transactional emails are sent to inboxes and not to spam folders. You can customize your analytics with pre-built dashboards and an export API. For assistance, consult our award-winning Support team or read the documentation guides. Use custom tagging and whitelabeling to create conditional content. Globally distributed infrastructure: Automatic SPAM loop registration and prewarmed dedicated IPs. Analytics can be accessed in many ways, including custom tags, A/B testing capabilities and comparative reports. White-labeled click tracking, custom reverse DNS and rules engine are available. Custom return path is also available. This is the average delivery time for top 3 ISPs. It was sent from our MTAs and to the recipient's mail server.

Thousands of businesses are already utilizing Elastic Email for their email communications. This exceptional Email Marketing platform is designed on an extremely economical Email API. Factors such as deliverability, reliability, and scalability are crucial for success. You can effortlessly connect and dispatch your emails using our HTTP API or SMTP relay, accommodating growth to over 100 million emails each month on our high-speed global infrastructure. Each campaign allows you to foster stronger connections with your audience. Elastic Email equips you with all the necessary marketing tools to ensure your contacts feel engaged. Make the most of your email marketing efforts by crafting stunning emails, distributing newsletters, and automating your campaigns with remarkable speed, enhancing both efficiency and effectiveness. Furthermore, this platform prioritizes user experience, making it simple to implement and manage your email strategies.

The Microsoft SMTP Service is a mail server software designed for Microsoft Windows Server operating systems, facilitating the sending and receiving of emails. As a component of Internet Information Services (IIS), it effectively relays emails between different mail servers, making it a favored choice for businesses seeking a dependable and scalable email server solution. Its installation and configuration are user-friendly, allowing compatibility with various email clients. Additionally, Microsoft SMTP Service offers several noteworthy features, such as the capability to relay emails across multiple domains, ensuring efficient communication. It supports numerous email clients including Microsoft Outlook, Mozilla Thunderbird, and Apple Mail, enhancing its versatility. Furthermore, security is a priority, as the service incorporates essential features like authentication and encryption, safeguarding email transmissions. Thus, organizations can trust Microsoft SMTP Service not only for its functionality but also for its robust security measures.

KingSMTP (formerly known as Kingmailer, founded in 2017) is a simple and fully featured mail server / SMTP service for use by anyone, not just developers. Start sending, receiving or routing your emails with a few clicks.

Numerous website administrators encounter issues with spam emails when relying on the default PHP mail function in WordPress. There can be various limitations associated with email services, such as undelivered messages or exceeding the quota for outgoing emails. The Bit SMTP plugin provides a solution by allowing users to authenticate their site's email service through the configuration of their chosen SMTP server. This protocol enhances the ease and reliability of email delivery for WordPress sites. By utilizing this functionality, you can ensure that emails sent from your website reach your intended recipients via the mail server of your choice, ultimately improving communication effectiveness.

Codermails is an email application created by Coder technologies, renowned for its excellence in email marketing. This versatile software is ideal for sending newsletters, promotional content, welcome messages, product updates, and more. Compatible with both Windows and Linux operating systems, it also features built-in statistics for open rates and click rates, allowing users to track their engagement effectively. Additionally, Codermails offers a user-friendly interface that simplifies the email marketing process for businesses of all sizes.

Discover the email solution tailored for dynamic teams seeking efficiency. We understand the challenges of finding an affordable yet effective email service, and Mailjet emerges as the ideal choice for your requirements. Our cutting-edge features empower your business growth while remaining budget-friendly. With our user-friendly email editor, Passport, you can effortlessly design stunning, responsive emails in just a few clicks. Choose from our extensive collection of free email templates or unleash your creativity by designing from scratch. Enhance teamwork with Mailjet’s Collaboration Toolkit, allowing real-time collaboration on the same email template or campaign, thus boosting your team's productivity. Significantly reduce feedback loops with our commenting and approval workflow, enabling quicker turnaround times. Tailor each email using the customer data you gather and segment your contact list to ensure the right content reaches the appropriate audience. It’s simple to make every recipient feel valued and recognized. Furthermore, analyze the effectiveness of your campaigns with real-time statistics provided for each sending, helping you refine your strategies for even better results. With Mailjet, achieving email marketing success becomes not only possible but also straightforward.

AuthSMTP serves as the outgoing SMTP email solution for your e-commerce platform, mailing lists, or email applications across a wide range of modern computers and mobile devices. With a quick setup process, a money-back guarantee, and affordable starter accounts, you can begin sending emails in just a few minutes, all without any risk. Our infrastructure is meticulously engineered for both reliability and efficiency, capable of handling extremely high volumes of email traffic. Utilizing high-performance and redundant systems ensures that we maintain optimal levels of service availability. Users benefit from an online Control Panel and both email and web-based support, backed by a knowledgeable team ready to assist whenever necessary. With more than 15 years of experience in delivering email services, we excel at ensuring that messages reach their intended recipients swiftly and accurately. Upon signing up, accounts are instantly created, and with our comprehensive setup guides, you can start your email campaigns almost immediately. Our commitment to customer satisfaction drives us to continually enhance our services and support for all users.

All the benefits of email marketing without the coding. We don't care about your size. We can help your business send powerful emails that get read and clicked on every occasion, no matter how big or small. They are also stunning. You can simplify your marketing tasks and reach all your goals with just a click. Moosend's advanced automation tools will save you time and help propel your email marketing forward. No more blah blah for your subscribers. Send them relevant emails that they want to read. This will increase your open and click rates. You can easily create stunning landing pages in minutes. Our feature-packed form editor makes it easy to grow your mailing list, collect valuable data and share your forms across all of your online channels.

Sendcrux was founded in 2017 and specializes in email campaigns, with a particular expertise in cold emails. Our performance is what sets us apart, with industry-leading click and open rates. Our success is based on a dedicated, innovative team, a deep understanding audience engagement, and innovative strategies. We consistently outperform our competitors and deliver unparalleled results for clients. We are the first choice for businesses looking for high-impact, effective email marketing solutions. We will elevate your email campaigns and maximize engagement to drive exceptional results. Choose us to have a brighter and more prosperous future in marketing.

Postfix is a mail server developed by Wietse Venema, originally created at IBM research as a viable alternative to the popular Sendmail program, and Wietse continues to enhance and maintain it while working at Google. This robust mail server operates on various UNIX systems including AIX, BSD, HP-UX, IRIX, LINUX, MacOS X, Solaris, and Tru64 UNIX, requiring ANSI C, a POSIX.1 library, and BSD sockets for its functionality. Designed with speed, ease of administration, and security in mind, Postfix features an exterior reminiscent of Sendmail, yet its internal architecture is entirely distinct. Among its key capabilities are the support for multiple SMTP deliveries over a single TLS-encrypted connection, leveraging the existing tlsproxy(8) and scache(8) services, as well as the ability to utilize MySQL stored procedures. Moreover, Postfix implements a gradual degradation feature, allowing a daemon to log warnings and continue operation despite encountering some service issues, rather than terminating abruptly with a fatal error. Additionally, it can set the execute bit on a queue file, which is critical, as failure to do so would prevent any mail from being delivered successfully. This combination of features makes Postfix a versatile choice for mail server management.

Safeguard your organization against phishing and business email compromise (BEC) by utilizing advanced DMARC technology. Valimail has been at the forefront of identity-driven anti-phishing solutions since its inception in 2015, helping to establish a reliable framework for digital communications worldwide. Their comprehensive cloud-native platform focuses on validating and confirming sender identities, effectively halting phishing attempts while enhancing brand integrity and ensuring compliance with regulations. By fostering trust in your email communications, you can eliminate phishing threats at their source. Additionally, this solution offers significant advantages such as brand protection, improved email deliverability, and the capability to adopt innovative email standards, including BIMI, AMP, and Schema.org. Features include automatic identification of outbound sending services and access to an extensive database of named sending services. Furthermore, it provides in-depth insights into the authentication status (SPF, DKIM, and DMARC) for all sending domains and services, along with streamlined DKIM key detection and setup, ensuring a robust defense against email fraud.

Now is the moment to embrace advanced tools and clearer data to ensure your communications successfully arrive at their intended targets. Additionally, gaining deeper insights into subscriber behavior will enable teams to refine their messaging, establish meaningful connections, and enhance business growth. It's the perfect opportunity to supercharge your technology capabilities. If you need to dispatch 8 million messages each hour from a single server, we've perfected the art of high-speed and high-volume delivery. Your ambitious objectives are now within reach. With GreenArrow, you’ll find more than just a team that addresses challenges; we are your solution architects. We handle complex issues while empowering you with the tools and knowledge necessary to enhance your software proficiency. Our exceptional, top-tier solutions and unparalleled support team at GreenArrow are dedicated to not only expanding your business but also fostering stronger relationships with your subscribers. Together, we can pave the way for a brighter and more efficient future in your communications strategy.

Block Phishing Actively Get Visibility - DMARC Check your domain status to increase email deliveryability and secure your inbox. What is DMARC? DMARC is an email authentication protocol that allows email domain owners to protect their domain from unauthorized use. DMARC at a glance Professional DMARC Services. The abbreviation Domain-based Message Authentication reporting & conformance is the most common technical term DMARC. It is a modus operandi which makes use of Domain Keys Identified Mail and Sender Policy Framework (SPF) to verify the legitimacy of an email message. Both DKIM and SPF play an important role in DMARC's specific mission. It is designed to monitor and improve domain protection against fraudulent emails sent by fraudsters from different parts of the globe. DMARC allows you to instruct receiving servers

Transactional emails are essential for conveying important information to your users. ZeptoMail stands out as a dependable and secure platform that ensures these vital emails are dispatched without delay. With its rapid delivery and exceptional inbox placement, ZeptoMail eliminates the frustration of customers having to wait for their messages. These emails, typically triggered by user actions, are anticipated by recipients and should ideally arrive in mere seconds. Choosing the right delivery service is key to maintaining customer satisfaction, ensuring that no one is left anxiously refreshing their inbox for verification codes or password resets. The effectiveness of email delivery is closely linked to the sender's IP address reputation, which makes ZeptoMail a robust solution designed specifically for the nuances of transactional email dispatch. Not only does it excel in speed, but it also ensures that emails land in the correct folders, enhancing user experience. Furthermore, ZeptoMail incorporates industry-standard authentication protocols like SPF and DKIM to bolster security and trustworthiness. By prioritizing these features, ZeptoMail empowers businesses to maintain effective communication with their customers.

-- The email engine you can build on -- We're everything that happens under the hood of your email communications. Reliable Email API with endless capabilities & features ready for integration. Flowmailer's Email Engine provides all the tools you need to build a professional email strategy. From marketing to customer support, from account management to warehousing, every email sent is valuable. Flowmailer is built for continuous high-performance, no matter the emails you're sending. Take away the difficulties of email delivery and focus on creating meaningful email communications with your customers. Email Delivery | SMTP & API | Infrastructure | Transactional Email

Mailgun offers a robust email automation platform tailored for developers. By utilizing Mailgun, users can leverage a comprehensive cloud-based email service designed for sending, receiving, and monitoring emails generated through their applications and websites. The platform is compatible with a variety of programming languages such as Python, Ruby, PHP, Java, and C#. Additionally, Mailgun's tracking capability enables users to monitor all outgoing emails effectively, helping to minimize the likelihood of being classified as spam. This functionality not only enhances email deliverability but also provides valuable insights into user engagement.

Choose the best email SMTP or API for the most robust delivery experience. Netcore Email API, formerly known as Pepipost, provides a powerful transactional inboxing and AI-powered email delivery infrastructure that is reliable, scalable and secure, and at the most affordable price plans. We help brands engage with their customers with the right content at the right time via emails.