Microsoft SMTP Server
Configure SMTP e-mail in IIS when you want to deliver e-mail messages from your site.
Microsoft SMTP Server Alternatives
The best Microsoft SMTP Server alternatives based on verified products, community votes, reviews and other factors.
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Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.
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sSMTP is a simple MTA to deliver mail from a computer to a mail server.
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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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OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with...
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Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
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A small Mail Transport Agent (MTA), designed for home and office use. Part of ...
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Sendmail is a general purpose internetwork email routing facility that supports many kinds of...
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Inbucket is an email testing application; it will accept messages for any email address and make...
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The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open...
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msmtp is an SMTP client.
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MailHog is an email testing tool inspired by MailCatcher, but easier to install.
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A fully fledged, free email server solution, an open source project (GPL v2).
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BulkMTA is Commercial Mail Server Similar to PowerMTA.
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esmtp is a user configurable relay-only Mail Transfer Agent (MTA) with a sendmail compatible syntax.