Software Alternatives & Reviews

Microsoft Exchange Server VS OpenSMTPD

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

Microsoft Exchange Server logo Microsoft Exchange Server

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

OpenSMTPD logo OpenSMTPD

OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with...
  • Microsoft Exchange Server Landing page
    Landing page //
    2023-01-19
  • OpenSMTPD Landing page
    Landing page //
    2019-03-05

Microsoft Exchange Server videos

Office 365 Email vs Microsoft Exchange Server

OpenSMTPD videos

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

Category Popularity

0-100% (relative to Microsoft Exchange Server and OpenSMTPD)
Email
79 79%
21% 21
SMTP Server
68 68%
32% 32
Self-hosted Email
100 100%
0% 0
MTA
0 0%
100% 100

User comments

Share your experience with using Microsoft Exchange Server and OpenSMTPD. For example, how are they different and which one is better?
Log in or Post with

Reviews

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

Microsoft Exchange Server Reviews

10 Microsoft Exchange Server Alternatives
Microsoft Exchange Server is a product developed by Microsoft having messaging and collaborative services. This is also part of the server products in the Microsoft Servers line and can be widely used by enterprises seeking the solution through Microsoft infrastructure.
Best Free and Open Source Alternatives to Microsoft Exchange Server
Microsoft Exchange Server is a mail server and calendaring server. It is proprietary software that’s not available for Linux. We recommend the following free and open source alternatives.
Overview of 5 Best Microsoft Exchange Server Alternatives
Not all Microsoft Exchange server alternatives are created equal and with the same set of features. Depending on the industry, workflow, the size of an organization, and other similar factors, different businesses have different needs in terms of email server features. Some focus on file-sharing or chat functionality features, while others put emphasis on document...
Source: jatheon.com

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 Exchange Server mentions (0)

We have not tracked any mentions of Microsoft Exchange Server yet. Tracking of Microsoft Exchange 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 / almost 3 years ago

What are some alternatives?

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

Zimbra - Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.

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

iRedMail - A fully fledged, free email server solution, an open source project (GPL v2).

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

mailcow - An open source mailserver suite.

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