Software Alternatives & Reviews

Microsoft SMTP Server VS OpenSMTPD

Compare Microsoft SMTP Server VS OpenSMTPD and see what are their differences

Microsoft SMTP Server logo Microsoft SMTP Server

Configure SMTP e-mail in IIS when you want to deliver e-mail messages from your site.

OpenSMTPD logo OpenSMTPD

OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with...
  • Microsoft SMTP Server Landing page
    Landing page //
    2023-09-24
  • OpenSMTPD Landing page
    Landing page //
    2019-03-05

Microsoft SMTP Server

Categories
  • SMTP Server
  • MTA
  • Email
  • Email Delivery
Website docs.microsoft.com
Details $-

OpenSMTPD

Categories
  • SMTP Server
  • Email
  • MTA
  • Email Delivery
Website opensmtpd.org
Details $

Microsoft SMTP Server videos

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OpenSMTPD videos

DAY[0] Episode #31 - kr00k, GhostCat, and more issues from NordVPN, Samsung, OpenSMTPd

Category Popularity

0-100% (relative to Microsoft SMTP Server and OpenSMTPD)
Email
37 37%
63% 63
SMTP Server
35 35%
65% 65
MTA
38 38%
62% 62
Email Delivery
46 46%
54% 54

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Microsoft SMTP Server and OpenSMTPD

Microsoft SMTP Server Reviews

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OpenSMTPD Reviews

Best Free and Open Source Alternatives to Microsoft Exchange Server
OpenSMTPD is an implementation of the server-side SMTP protocol, with some additional standard extensions. Its design goals include security, reliability, ease of configuration, and support for common use cases.

Social recommendations and mentions

Based on our record, OpenSMTPD seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Microsoft SMTP Server mentions (0)

We have not tracked any mentions of Microsoft SMTP Server yet. Tracking of Microsoft SMTP Server recommendations started around Mar 2021.

OpenSMTPD mentions (2)

  • Has anyone setup a Linux based internal only smtp relay?
    I've had something of the same experience with Postfix, u/0x29aNull. Check out OpenSMTPD. It is lightweight and standards compliant. I know that there are packages for Debian and Alpine Linux. There may also be ones for Fedora/RHEL derivatives. I use it in my environment on OpenBSD. Source: about 1 year ago
  • DKIM Migration: Rpamd instead of DKIMproxy out on OpenBSD / OpenSMTPD
    When I installed Rspamd with on OpenBSD / OpenSMTPD the other day, DKIMProxy out (dkimproxy_out daemon), which had been got via OpenBSD Ports package system, was used to add DKIM signatures to mails in order to improve security on emails. - Source: dev.to / over 2 years ago

What are some alternatives?

When comparing Microsoft SMTP Server and OpenSMTPD, you can also consider the following products

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

sSMTP - sSMTP is a simple MTA to deliver mail from a computer to a mail server.

Exim - Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.

Sendmail - Sendmail is a general purpose internetwork email routing facility that supports many kinds of...

Dragonfly Mail Agent - A small Mail Transport Agent (MTA), designed for home and office use. Part of ...

msmtp - msmtp is an SMTP client.