Alternatives to Microsoft SMTP Service

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.

DKIM Signing improves inbox placement for mailbox providers such as Gmail, Office365, and Office365. For increased reliability, multiple servers can be used in the USA and Europe. No more managing your own email server or IP reputation. No prior experience is required to create SPF or DKIM records for domain names. Our SMTP relay service can help you if your IP is blacklisted. Technical support is available 24x7 via chat, email, or phone. We will ensure that your mail is delivered. We will be able to deliver your mail promptly to your inbox. To ensure the best service, we optimize our sending routes and closely monitor IP reputations. We have a Zero Spam Policy which allows us to block or limit messages that could damage our reliability or affect the reputation of our customers. After you have verified domain ownership via DNS, you can send unlimited numbers of "From" addresses and domains.

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.

Many site owners have to deal with spam mail issues when using the default PHP mail function() of WordPress. Mail service may have restrictions: Sometimes emails are not delivered or sites exceed the limit on outgoing mail. Bit SMTP plugin allows to authenticate your mail service by configuring the SMTP servers of the desired mail service. SMTP is a protocol that makes your WordPress site's email delivery easier and more reliable. This feature allows you to send mail from your website to your recipients using your preferred mail server.

Cloud-based email hosting that is reliable with spam filtering, antivirus protection and large storage. Compatible with Outlook and all other POP3/IMAP clients. Responsible senders can use high volume SMTP services. Outbound relay service for transactional mail, email marketing campaigns, newsletters, and other applications. High volume senders will benefit from dedicated email servers, clustering, and multiple IP load balancing. Fixed monthly cost with unlimited sending, reputation monitoring. Greatmail is an email service provider (ESP), specializing in business-class email hosting, SMTP hosting, and email servers. We also offer custom solutions for ISPs, cloud developers, and application programmers. These include dedicated IP servers and load balanced configurations with multiple servers.

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), a cost-effective, flexible and scalable email service, allows developers to send mail from any application. Amazon SES can be configured quickly to support multiple email use cases including marketing, transactional, and mass mail communications. Amazon SES's flexibility in IP deployment and email authentication options allow for greater deliverability and protect sender reputation. Additionally, sending analytics measure the impact of each individual email. Amazon SES allows you to send secure, global, and scaled email. You can easily configure email sending using either the Amazon SES console or APIs. Amazon SES also supports email receipt, which allows you to interact with customers at scale. Amazon SES is a subscription service that allows you to pay only for what you use, regardless of the use case or volume of your messages.

PowerMTA is an enterprise-grade email messaging transfer agent (MTA), software that sends high-volume, business-critical email messages. PowerMTA can run on your own server, or in any public cloud like Amazon Web Services or Microsoft Azure. PowerMTA offers unrivaled reliability and powerful analytics. You have complete control over your email sending. With a simple setup, minimal hardware footprint and robust analytics, PowerMTA can improve performance, deliverability, team efficiency, and team productivity. PowerMTA with Signals is available today starting at $8,000/year. SparkPost Signals is a part of PowerMTA and provides a comprehensive view of your email sending. Analyze per domain, per-campaign and even per recipient performance to optimize your email sending and prevent future problems. PowerMTA delivers unmatched performance and delivery in a stable SMTP environment. Send high-speed messages with complete control

Get the best Email Marketing at an affordable price. To improve your sender reputation and prevent blacklisting of IP addresses due to actions taken by others, use a dedicated IP address. Use the cryptographic signatures SPF or DKIM to show that the message is from your company and domain. This will help reduce spam messages. Our SMTP servers send you emails via secure SSL connection. Moreover, it's lightning fast. You can view the total number of messages sent, the conversions made, and the links clicked for each mailing list. Our SMTP service generates sending and delivery error reports. All reports can be downloaded directly to your computer. Even if the recipient is on a mailing list, your mailings will not be sent to them. Your emails should be delivered to the inbox, not the spam folder.

We know how important marketing is to businesses. That's why we created our Instant Bulk SMTP service. This allows you to send your campaign within 30 minutes. Manage multiple contact lists, add, remove, delete, import export. Our email analytics allows you to check bounces, opens and click throughs. You can integrate our email analytics with your applications. It is simple to upgrade to a higher plan with no hassle.

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.

Postmastery offers professional email monitoring beyond the simple click & open statistics. Postmastery's Delivery Analytics platform processes SMTP data from both on-premises and SMTP providers. It can read data from Microsoft SNDS, Return Path Score, and relevant blacklists. Users can access real-time dashboards and get automatic alerts. Email marketing is plagued by high bounce rates, slow delivery times, junk folders, and blacklisting. These issues can negatively impact your business. They can negatively impact your reputation so it's important to avoid them. Postmastery provides a baseline for improvement, and conducts an email delivery assessment. Our specialists can also provide support at the infrastructure level if necessary. Postmastery will manage your delivery monitoring so you can focus on your core business. Our 'email delivery control center' offers email delivery expertise, tools and support.

Miogmail, an SMTP relay service, is the best way to get started with sending transactional and marketing emails. Send emails according to a specific action or send a series of bulk email continuously. Drag-drop editor allows you to create your own email templates or you can use a premade responsive template. Secure email infrastructure integration with SSL and DKIM is a priority. Advanced management tools and a dedicated IP address will increase your email delivery. Professional-looking personalized transactional, promo and newsletter emails. Utilize transactional/promotional SMTP or SMTP API to send bulk email.

Bulk Mailer is an email marketing software that allows bulk messages to be designed, sent and monitored. Bulk Mailer has an integrated SMTP server, which allows it to send mass email messages directly from the recipient's mailbox. Bulk Mailer allows you to monitor who opened your email and what time. Mass email software makes it easy to manage your contacts and create personalized HTML messages. This program is essential for bulk email campaign managers. Bulk email software is powerful and will outperform your business competitors. Bulk Mailer can accept mailing lists created in Access, Excel and DBF, Word. They are saved in ASCII text files (.txt and.lst). It is possible to enter unlimited numbers of email addresses. Bulk Mailer is a flexible and powerful sending tool.

You can send unlimited email traffic to anyone you like. The mail server works regardless if you are using a desktop computer at home, a tablet, a smartphone or a laptop while on the go. Avoid blacklistings, and don't forget maintenance, updates, and other hindrances. Your email campaigns are sent to the entire globe via our stable SMTP cloud servers. You can send email from your own domain and IP number if you choose a dedicated SMTP server. This allows you to control the reputation of any email you send. Mailwizz is a professional email management system that allows you to manage email lists and create high-quality email content. Mailwizz is a professional email management system that can handle large numbers of emails. There are no products on the market that can replace email as the primary route to the recipient's attention. Email is the best option for 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.

WordPress is not sending emails? You're not the only one. It's difficult to reach your inbox with spam filtering increasing in force. Your email delivery issues will disappear once you switch from default WordPress email settings to WPMail SMTP. Are you missing sales opportunities and leads because your WordPress website emails are ending up in spam? These opportunities could be a huge loss for your bottom line. Your emails will be recognized as legitimate if they are authenticated using SMTP. This will allow you to bypass spam filters. WP Mail SMTP is compatible with all the top secure SMTP providers. No matter how many emails are needed, WP Mail SMTP can connect you with the right provider to meet your business's needs and budget.

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.

To use our service, you will need to modify your domain name system records (DNS). Upon registration, we provide you with SMTP connectivity for your mass email client and an online sending platform. We are responsible for maintaining and checking the servers to ensure that you receive 98% delivery. Please ensure that recipients keep their lists clean. We offer reliable and flexible SMTP servers that are able to adapt to all situations. There are two main types of email delivery process. There are two main types of email delivery: transactional emails and mass emails. Although we encourage you to use our service to send mass emails, transactional emails can also be sent. We will adjust the settings based on the purpose. We care about email deliverability. We regularly test and monitor the performance of email marketing campaigns.

What is Postfix? It is Wietse Venema’s mail server. It was originally developed by IBM Research as an alternative to Sendmail. Wietse Venema continues to support Postfix at Google. Postfix works (or has worked) on AIX and BSD, HPUX, IRIX. LINUX. MacOS X. Solaris. Tru64 UNIX. It requires ANSI C and a POSIX.1 librarian. Postfix aims to be fast, simple to administer, and secure. Although the outside is very Sendmail-ish, the inside is entirely different. Multiple SMTP delivery over the same TLS encrypted connection. This reuses existing tlsproxy(8), scache(8) services. MySQL stored procedure support. Gradual degradation: In many cases, a Postfix daemon will log an error and continue to provide services that are still available instead of terminating with a fatality. Postfix can set an execute bit in a queue file. If this fails, no mail will be delivered.

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.

Secure and reliable email hosting for SMBs and Enterprise. Our customers receive over 100 million emails each month. Enhanced gateway security and filtering, outbound SMTP and email service backup using a new high-quality infrastructure for the best results our customers expect. Products include: Secure email gateway, email backup MX and email forwarding, as well as outbound SMTP. Link Click Protection is a part the Advanced Threat Defense Suite and protects DuoCircle against phishing attacks. Link Click Protection protects you even if the site content changes between clicks. Your confidential corporate information is protected and you are protected from phishing attacks. Employees are simply prohibited from visiting sites that may misuse your information. An alert will notify you when a suspicious link is being visited.

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.

AuthSMTP is an outgoing SMTP email service that you can use to manage your e-commerce website or mailing list. It works on all computers and mobile devices. You can set up your account instantly and send email within minutes. Our systems are custom-designed and built to ensure reliability and high performance in processing large volumes of email. To ensure the highest availability, we use redundant and high-performance systems. You can access an online Control Panel and email support. We also have web-based support. Our support staff is available to help you if needed. Our email services are backed by knowledgeable support staff who can help you if you need it. We have more than 15 years of experience in email services.

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.

Mailgun is an email automation tool that is suitable to developers. Mailgun allows users to access a cloud-based email service that can track, send, and receive emails via their websites and applications. Mailgun supports many programming languages, including Python, Ruby and PHP. Mailgun's tracking feature allows users to track all emails and reduce spam.

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.

Email Marketing Services allow your business to contact the customer whenever it pleases. Although not all emails need to be sales pitches, every contact with the customer must provide value. If you're looking for a Transactional SMTP Service, you likely have an application that sends either transactional or marketing messages and are looking for a host to relay these messages. The world's best workflow builder allows you to create fully automated campaigns. You can apply tags, trigger campaigns and branch with if/then logic.

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.

Elastic Email is used by thousands of companies. A powerful Email Marketing platform built on the most cost-effective Email Protocol. Scalability, reliability, and deliverability are important. Connect to our HTTP API or SMTP relay to send your email. You can also scale up to 100+ million emails per monthly on our global infrastructure. Every campaign you send will help you build better relationships with your recipients. Elastic Email offers all the marketing tools that you need to make your contacts feel connected. It is important to deliver on time, be reliable, and scale up. Our global infrastructure is ultra-fast and allows you to connect and send email easily via our HTTP API and SMTP relay. You can also scale up to 100+ million messages per month.

The Sentrion platform for sending mail is designed to handle large, complex environments. However, we make a portion of it open-source. Sentrion isn't for everyone. However, if you use open-source email in a complex environment and need an enterprise platform to support your messaging roadmap for years (virtualization of consolidation, cloud migration, etc.) Sentrion may be right for you. The Domain Keys Identified Mail Internet standard allows email senders to digitally sign messages so that recipients can verify that they have not been forged. DKIM sender authentication scheme lets the recipient of a message confirm that the message was sent from the sender's domain. It also ensures that the message content is not altered. DKIM, a cryptography-based solution, provides businesses with an industry-standard way to reduce email fraud and protect their brand and reputation at a relatively low cost.

Ongage is an email platform for advanced email marketers who want to send high-end campaigns but also understand their audience better. Both developers and non-developers are able to run high-volume campaigns with advanced capabilities on an intuitive dashboard. This gives them full control and allows them to get the job done. Get actionable insights into customer behavior and send data-driven email segments according to intent. Automated real-time emails allow you to create personalized experiences that are based on the actions of your customers. This will help you direct your audience towards your goals. Ongage is a one-stop-deliverability-shop, with system capabilities, reports, and experts that can slice and dice deliverability from every angle. You can sync your CRM, CDP, data warehouse and Ongage to optimize campaigns and make an immediate impact. To send your emails, connect any SMTP relay, MTA or use the built in Ongage SMTP. You can send emails from multiple SMTPs in Ongage or one.

You can join Windows® clients and manage them transparently. No disruption to your users and no device or user CALs. It comes with industry-standard SMTP/POP3/IMAP mail servers, built on the most trusted technologies and protocols. It provides reliable and secure Internet access. It also helps manage the basic network infrastructure services. Get software updates up to the EOL-date for each version, and support when needed. Zentyal provides an easy-to-use Windows Server®. It is natively compatible with Microsoft Active Directory®, allowing you to add Windows®, clients to your domain and manage them without causing any disruption to your users. Zentyal comes with industry-standard SMTP, POP3/IMAP mail servers that are built on the most trusted technologies and protocols. You can use Zentyal to host mail servers, domains and directory servers with mail, or as an all-in-one server.

-- 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

MailerQ is an on-premise Mail Transfer Agent (MTA), which delivers millions of emails per day. It is designed with an emphasis on performance, ease of use, and insights. The MTA includes an intuitive Management Console, REST API, as well as other functionality that will allow serious senders to maintain and improve their reputation and deliverability rates. It is becoming an increasingly popular choice for all types of senders, including banks and government institutions. The management console provides real-time insight into delivery attempts and results, queues and error logs, as well as queues and error logs per MTA, target, IP, and even per customer, campaign, or message type. You can classify bounces, process feedback loops, and adjust MTA behavior based upon server responses. This will allow you to maximize your email deliverability as well as your sender reputation.

Your emails will be delivered to your users. Our powerful SMTP infrastructure allows you to send up to 10M+ emails per day. Get weekly advice from your email expert. You will receive a weekly report from our email expert that is full of optimizations and tips. You can get 24/7 support and monitoring. You can reach us via Whatsapp, phone, or email any time of the day. We are always available to assist you. Don't get lost in irrelevant data. Get a quick overview of your deliveryability and identify any bottlenecks. Instantly see how you are doing in terms of email delivery. Select the last week, month, or custom period. Get detailed insights into bounces, deliveries and more to optimize your delivery rate. Pinpoint bottlenecks quickly. To optimize your email delivery rate, you will receive weekly personalized, actionable advice. Our experts monitor your email delivery 24 hours a day to ensure everything is in order.

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.

Exim is a mail-transfer agent (MTA), which can be used in Unixllike operating system. Philip Hazel wrote the first version in 1995 for the University of Cambridge Computing Service's email systems. Exim is available under the GPL and is free to download and modify. Exim is somewhat similar to Smail 3. However, it has diverged from it and now exceeds it in ease-of-use and flexibility. Both follow the Sendmail design model, where one main binary controls all facilities of the MTA. Some consider this monolithic design to be less secure and slower. However, Exim's security record and speed are better than Sendmail. It excels in advanced areas like address routing, queue handling, and testing. Exim does not have a Graphical User Interface (GUI), but some Linux distributions do.

Email solution for fast-moving teams. We understand how difficult it can be to find an affordable, reliable email service. Mailjet is the ideal solution for you. Our advanced features will help you grow your company at a very affordable price. Passport, our email editor, allows you to create beautiful responsive emails in just a few mouse clicks. You can choose from a variety of templates, or create your own design. Mailjet's Collaboration Toolkit allows you to collaborate on the same campaign or email template in real-time to improve your team's efficiency. You can drastically reduce the feedback cycle by using commenting and approval workflow features to speed up. To send the right content to the right customers, personalize each email by segmenting your contact list and collecting customer data. It's easy for each recipient to feel special. You can optimize the performance of your campaign by integrating real-time statistics with every sending.

All plans include full-scale marketing automation. We integrate with over 300+ applications. Automate new leads from any source. Calendly New Leads, Automates lead nurturing automation. In-built delivery engine that delivers 98% of your emails. To engage your subscribers, automatically send emails according to a pre-determined schedule. To remove spam emails, clean your email list. With the built-in email builder, you can quickly create emails. Send follow-up emails to non-opens. All your subscribers can be managed in one place. Pabbly Email Marketing allows you to import emails. To capture leads from your website, add a subscription form to your website. Send a welcome email to every new subscriber to your email list.

MailEnable is a complete solution that provides secure email and collaboration services. MailEnable is the most popular Windows Mail Server Platform according to a recent independent survey. MailEnable is a solution for small businesses and hosting companies that provide email services to thousands end users. MailEnable is a Windows Mail Server with features similar to Microsoft Exchange. It offers powerful messaging services such as Exchange ActiveSync, IMAP and SMTP and collaboration tools like calendaring, contacts, tasks, and notes.

For the most reliable email delivery experience, choose the best email API or the best SMTP. Pepipost offers a robust transactional email delivery infrastructure with AI-powered inboxing that is reliable, scalable and secure. It also offers the most affordable pricing plans. We help brands engage with customers at the right time with the right content, over email.

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.

MDaemon Email Server supports IMAP and SMTP protocols. It delivers solid performance thanks to its feature-rich, user-friendly design. The email server software is low in total cost of ownership (TCO), and is specifically designed to meet the needs small- to medium-sized businesses. MDaemon supports multiple languages, content filtering, and multiple domains. It also offers flexible administration and an open standard design.

Relay restrictions have been completely rewritten with an easier-to-use interface that allows for finer control of relay security. EIMS has its own domain name resolver, which fixes bugs in the Open Transport DNR as well as performance issues with the OS X DNR. The new DNR currently does not support non-recursive domain names. SMTP Submit Port, this is a secondary SMTP port that runs on TCP port 587. It currently functions exactly the same way as the standard SMTP. This is useful for clients who are behind an ISP which blocks port 25 access. Sending Setup option to set maximum recipients per message. You can now turn off the Expand SMTP addresses option. This was always on in EIMS 3.1. The SMTP (both port 25 or 587) server now reports Telnet and connections that appear to be port scans (connections with no data sent and where it doesn't stop timer).

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!

PostageApp is an Email Service Provider, (ESP) that offers a simple and straightforward approach. Our simple email service can be set up in minutes. We don't compromise on deliverability best practices such as DKIM, SPF and rigid RFC compliance. We offer startup-friendly plans to get your MVP off to the ground. Our Dedicated IP plans allow your app to grow and allows you to take control of your reputation, ensuring maximum throughput. Our developer-focused tools and support will get you started quickly. Our in-house deliverability specialists actively monitor and work with your inboxes to hit inboxes. Our reporting, tracking, and analytics provide insight into the success of your campaign.

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.

hMailServer for Microsoft Windows is a free and open-source e-mail client. It is used by Internet service provider, companies, government, schools, and enthusiasts around the world. It can be easily integrated with most existing webmail systems. It offers flexible spam protection based on scores and can be attached to your virus scanner for scanning all incoming and departed email.