Outlook Connector for MDaemon 

Outlook Connector unlocks the collaborative functions of Microsoft Outlook using MDaemon as the mail server platform. Outlook users can share Calendar, Tasks, Contacts, Notes, and Journal folders without the expense or expertise required by Exchange.
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AXIGEN Mail Server 

AXIGEN is fast, reliable and secure mail server on Linux, offering (E)SMTP, POP3, IMAP4 and WEBmail services, with centalised Web/CLI Admin and FREE support included, enabling the System Administrator to have full control of the email traffic.
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Flexemailer 

Send HTML formatted Emails to your Datafile, Spreadsheet or Database of Contacts. Built-in Visual HTML Editor and Built-in Mail Server for maximum control.
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Complete Mail Server 

Complete Mail Server is high-performance professional SMTP/POP3 server software engineered for corporations and ISPs to satisfy business needs in ultra fast, flexible and reliable mail server. It works along with any email program or mailer.
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No Spam Today! SMTP Proxy Free 

SMTP proxy mail filter that acts between the internet and your mail server. Incoming mail is accepted from the open internet, checked for spam or viruses, and then delivered to your existing SMTP mail server. Compatible with all mail server software.
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No Spam Today! SMTP Proxy 

SMTP proxy mail filter that acts between the internet and your mail server. Incoming mail is accepted from the open internet, checked for spam or viruses, and then delivered to your existing SMTP mail server. Compatible with all mail server software.
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