Alternatives to Microsoft SMTP Service

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.

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.

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.

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.

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.

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.

TurboSMTP understands that email is not just a means of communication but the backbone of your customer engagement strategy. TurboSMTP Email API is trusted by developers and marketers alike for its time-saving features, scalability, and delivery expertise. Our service offers a flexible SMTP relay solution along with advanced features tailored to meet the needs of businesses of all sizes. With our intuitive dashboard, powerful features, and dedicated support, ensuring the delivery of your emails is seamless and uninterrupted. TurboSMTP's infrastructure is built to scale, whether you're sending a few hundred emails or millions. Integration with our service is effortless, with sample code libraries available in multiple languages, interactive documentation, and customizable templates. TurboSMTP offers webhook integrations and automates actions based on email events, streamlining your workflow. Plus, our email validation tools ensure list accuracy, reducing bounce rates and improving deliverability. TurboSMTP not only prioritizes the reliability and efficiency of email delivery but also understands the importance of providing exceptional support to our valued customers. That's why we offer multilingual 24/7 support.

Amazon Simple Email Service (SES) offers an economical, versatile, and scalable platform for developers to send emails directly from their applications. It's easy to set up Amazon SES to cater to a variety of email requirements, such as transactional messages, marketing campaigns, or mass distribution. The service provides adaptable IP deployment and email authentication features that enhance deliverability and safeguard the sender's reputation, while comprehensive analytics allow for the evaluation of each email's effectiveness. With Amazon SES, you can send emails securely and efficiently on a global scale. Configuration can be accomplished swiftly using the Amazon SES console, APIs, or SMTP, allowing you to initiate email dispatch within minutes. Additionally, Amazon SES has functionalities for receiving emails, which facilitates large-scale customer interactions. No matter the purpose or the volume of emails sent, Amazon SES ensures that you only incur charges for what you actually use. This makes it an ideal solution for businesses of all sizes looking to enhance their email communication strategies.

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.

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.

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.

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.

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.

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.

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.

If you're struggling with WordPress emails not being delivered, you're certainly not the only one facing this challenge. The increasing prevalence of stringent spam filters makes it difficult for emails to reach their intended recipients unless they're set up properly. By transitioning from the standard WordPress email configuration to WP Mail SMTP, you can effectively eliminate your email delivery problems once and for all. Are you potentially losing out on valuable leads and sales due to your WordPress site's messages landing in spam folders? Such losses can significantly impact your revenue. When your emails are authenticated through SMTP, they are more likely to be viewed as legitimate, allowing them to bypass those strict spam filters. WP Mail SMTP is compatible with leading secure SMTP providers, ensuring that regardless of your email volume needs, you can partner with the ideal provider that fits your business requirements and financial plan. This way, you can ensure consistent communication with your audience and maximize your conversion opportunities.

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.

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.

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.

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.

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.

Dependable and safe email hosting solutions for both small to medium-sized businesses and large enterprises. We manage the secure processing of over 100 million emails each month for our clients. Our services include enhanced gateway security, robust filtering systems, inbound email protection, email service backups, and outbound SMTP, all built on a cutting-edge infrastructure to deliver the high-quality results our clients expect. Our offerings encompass a secure email gateway, backup MX services, email forwarding, outbound SMTP, and various additional features. DuoCircle provides robust protection against phishing attempts through its Link Click Protection, which is integrated into the Advanced Threat Defense Suite. This feature ensures that even if the content of a website changes between clicks, you remain protected from potential threats. With Link Click Protection, your sensitive corporate information is safeguarded, as employees are blocked from accessing sites that could exploit such data. Additionally, you receive immediate alerts when a suspicious link is about to be clicked, ensuring your security remains a top priority. Overall, our comprehensive email security solutions enhance the safety of your communications and provide peace of mind for your organization.

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.

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.

AuthSMTP serves as the outgoing SMTP email solution for e-commerce websites, mailing lists, and email applications on a wide range of modern computers and mobile devices. Featuring an immediate setup process, a satisfaction guarantee, and affordable starter accounts, you can begin sending emails risk-free within minutes. Our infrastructure is specifically designed for optimal reliability and performance, efficiently handling substantial email volumes. We utilize advanced and redundant systems to guarantee exceptional availability levels. In addition to an online Control Panel, we offer email and web-based support, with a team of knowledgeable staff ready to assist you whenever necessary. With over 15 years of experience in delivering email services, we ensure that your messages are sent promptly and accurately to their intended recipients. Once you sign up, accounts are created instantly, allowing you to utilize our comprehensive setup guides and start your email communications almost immediately. This seamless process ensures that you can focus on your business without worrying about email delivery issues.

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.

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.

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.

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.

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.

Ongage serves as a comprehensive email marketing solution tailored for sophisticated marketers who aim to execute premium campaigns while deepening their audience insights. Both developers and those without technical expertise can launch high-volume campaigns thanks to its user-friendly dashboard that offers extensive control. Users can obtain valuable insights into customer behaviors, craft data-driven emails, and segment audiences based on specific intents. Additionally, Ongage allows for the creation of personalized experiences that respond to customer actions, featuring automated real-time emails designed to guide audiences toward desired outcomes. Acting as a complete hub for email deliverability, Ongage boasts a suite of features, analytical reports, and expert guidance that dissect deliverability from multiple perspectives. The platform enables seamless synchronization with your CRM, CDP, and data warehouse, enhancing the effectiveness of campaigns in real time. Users can easily connect to any SMTP relay or MTA, or utilize Ongage's integrated SMTP to send their messages. Furthermore, Ongage offers flexibility by allowing users to send emails from multiple SMTPs or just one, ensuring a tailored approach to email communication. This adaptability makes Ongage a powerful ally for marketers aiming to maximize their impact through effective email strategies.

SocketLabs, an email delivery engine that is reliable and easy to use, allows companies of all sizes to send transactional and marketing emails quickly and easily. Trusted by major organizations like Virgin and the American Red Cross SocketLabs offers a feature-rich outgoing email server delivery solution, an easy to use dashboard interface, and an even simpler setup. It also includes advanced analytics, outgoing mail servers, and top-notch customer support.

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.

The Sentrion platform from sendmail is crafted for intricate and expansive environments, yet we also offer a portion of this solution as open-source. While Sentrion may not suit everyone’s needs, it is an excellent choice for those employing open-source email systems within large and complex infrastructures, as it can support your messaging strategy for the long term, encompassing aspects like virtualization, consolidation, and cloud migration. The Domain Keys Identified Mail (DKIM) standard plays a pivotal role in email security by allowing senders to digitally sign their messages, enabling recipients to verify that these messages are genuine and have not been tampered with. This sender authentication process ensures that recipients can trace the origin of an email back to the sender's domain, providing assurance regarding the integrity of the message content. Utilizing cryptography, DKIM offers a widely accepted solution for reducing email fraud, thereby safeguarding an organization's brand and reputation while keeping implementation costs manageable. With the increasing prevalence of email threats, adopting DKIM can be a crucial step in fortifying your email security framework.

Easily connect Windows® clients to your domain with Zentyal, ensuring a seamless user experience without the need for user or device CALs. This solution incorporates reliable SMTP and POP3/IMAP mail servers, utilizing well-established technologies and protocols for optimal performance. It guarantees secure Internet access while effectively managing essential network infrastructure services. Users can benefit from software updates until the end-of-life date for each version, and support is readily available when needed. Zentyal serves as an intuitive alternative to Windows Server®, featuring native compatibility with Microsoft Active Directory® for straightforward management of Windows® clients. Furthermore, it allows for flexible deployment options, enabling Zentyal to function as a mail server, domain and directory server, or a comprehensive all-in-one server solution for your organization. This adaptability makes it an excellent choice for businesses looking to enhance their network management capabilities.

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.

-- 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

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.

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.

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.

MailEnable offers a comprehensive solution for secure email and collaboration services, gaining recognition in a recent independent survey as the leading Windows Mail Server Platform globally. Whether you are a large hosting provider catering to numerous users or a small business managing a single domain, MailEnable delivers a solution that is sure to satisfy your email users. The Windows Mail Server software from MailEnable boasts features that rival those of Microsoft Exchange, including robust messaging protocols like Exchange ActiveSync, IMAP, SMTP, and POP3, along with collaborative tools such as calendaring (CalDAV), contacts (CardDAV), tasks, and notes. This extensive feature set ensures that users have access to everything they need for seamless communication and organization.

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.

Make sure your emails successfully reach your audience by scaling up to over 10 million messages each month through our robust SMTP infrastructure and comprehensive API. You'll receive personalized weekly insights delivered straight to your inbox, where our email specialist provides you with a detailed report filled with useful tips and strategies for improvement. Enjoy round-the-clock support and monitoring, allowing you to contact us anytime via WhatsApp, phone, or email, ensuring assistance is always available when you need it. Avoid getting overwhelmed by unnecessary information; instead, obtain a concise overview of your email deliverability and identify any specific hurdles. Instantly assess your performance in email delivery for any chosen timeframe—be it the last week, the past month, or a custom period. Enhance your delivery rates with in-depth analysis regarding bounces, successful deliveries, and more, making it easy to identify issues promptly. With weekly personalized, actionable recommendations, you can further enhance your email delivery success, while our dedicated experts continuously monitor your email performance to ensure everything runs smoothly at all times. This commitment to support ensures that you are never alone in optimizing your email strategy.

SMTP Debug is a free and secure tool that can be used to diagnose SMTP connectivity issues. This tool connects your SMTP server and initiates a testing session. It then provides a detailed log detailing the interaction between servers. This tool simplifies troubleshooting, and helps resolve sending issues, whether you're using popular services like SendGrid or Google SMTP. Your information is private and secure with end-to-end encrypted communication. The tool does not store session logs or credentials. You can enhance security further by changing your password or using the optional SMTP Blackhole feature.

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.

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.

The POP3 Downloader is an efficient, flexible, and real-time connector designed for your mail server, facilitating the downloading and forwarding of emails from any POP3 or IMAP accounts to email servers that utilize SMTP or IMAP protocols. Notable Features Include: Complete compatibility with every version of Exchange Full compatibility with all SMTP servers User management through a convenient web interface Options for antivirus and antispam protection Support for IMAP, including folder management Push notifications for IMAP Integration with Gmail Scheduling capabilities down to one minute No restrictions on email size Seamless integration with Microsoft Exchange, eliminating the need for a public SMTP server or static IP Migrate or incorporate an unlimited number of external POP3 or IMAP accounts into local mailboxes Maintain receipt of emails from legacy accounts while transitioning to a new mail server Facilitate IMAP migration or synchronization between two IMAP servers A dependable, straightforward, and budget-friendly solution Enhance your email integration workflows and automate email retrieval effortlessly with Hexamail POP3 Downloader, ensuring that your communication remains efficient and uninterrupted.

Never miss an important email again! Our Email Router allows you to manage all your email IDs from one inbox. Are you having trouble managing multiple email accounts? Mutant Mail, a privacy-focused server-side solution, will take away the hassle of managing multiple Email IDs. Problem: You can have 5 domains with 5 Email IDs (admin, support and help, legal, contact). This is 25 Email IDs. Do we want to log into every mailbox to maintain the domain persona? Answer: You can receive, reply and send all emails for your domains from your Gmail account (or any other Email account) and save money on email hosting. Avoid the Email client setup headaches! For every email id with Mutant Mail, forget about Credentials, SMTP and IMAP/POP. Mutant Mail allows you to send, receive and reply from one mailbox. Spoof-proof your emails with the complimentary DMARC Report. PGP/GPG encryption. Buffer/Batch your emails.

Mailify, a European-based email marketing and SMS software company, is an industry leader. This tool is ideal for companies looking to stand out among the crowd with its innovative features and expert advice. Mailify is a complete solution. It allows you to manage your contacts, segment your database and create email and newsletters. It supports plugins for the most popular platforms such as Wordpress and Google Analytics. Our EmailBuilder is flexible and fast, allowing you add and edit more content than other tools. Smart Templates saves you time by automatically adapting email and newsletter templates. Simply enter your URL to create a dozen templates that are based on it. We have improved features like the Heatmap, Predictive Eye tracking and many more. These features allow you to identify what has caught the eye of your target audience, predict their first impressions, and even track their eye movements.

Brevo (formerly Sendinblue), the platform that helps build customer relationships through Email, SMS, Chat and more. The complete toolkit for converting one-time browsers to long-term customers. Beautifully designed email campaigns allow you to connect with contacts in their inbox. Send targeted messages to your customers. Brevo helps businesses build and grow relationships by automating marketing campaigns, transactional email and SMS messages. What makes Brevo different? Brevo is powered our world-class team of customer happiness experts and we offer pricing that will make you smile. Our platform offers a comprehensive suite of services in a single, easy-to-use solution. Happy Sending!