Poste.io Alternatives [Page 2]

Postfix Admin is a web based interface used to manage mailboxes, virtual domains and aliases.

Synovel Collabsuite is the name of a next generation and open source web server for the Linux operating systems that now features the chat and support for the calendars as well.

The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

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Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.

MailEnable is a Windows based mail server and email server program that is packed with the state of the features and functions like antivirus and spam filtering system, webmail management system, cardDAV, CalDAV and much more.

SmarterMail is a next generation email management server that is offering several business collaboration and communication features as well.

hMailServer is a free e-mail server for Microsoft Windows.

Xeams is a secure and powerful mail server for that includes a powerful spam filtering engine that...

KerioConnect is a commercial mail and groupware server.

PowerMTA is an industrial-strength software for high-volume email delivery.

NetWin SurgeMail is a best in the class webmail server for all kind of users from beginners to the professional one.

Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft.

Is a collaboration suite (messaging and groupware).

qmail is the name of an advanced level of mail transfer agent for the UNIX based operating systems.