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OpenSMTPD VS sSMTP

Compare OpenSMTPD VS sSMTP and see what are their differences

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  4. » Alternatives

OpenSMTPD logo OpenSMTPD

OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with...

sSMTP logo sSMTP

sSMTP is a simple MTA to deliver mail from a computer to a mail server.
  • OpenSMTPD Landing page
    Landing page //
    2019-03-05
  • sSMTP Landing page
    Landing page //
    2023-08-04

OpenSMTPD videos

+ Add

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

sSMTP videos

+ Add

Debian Package of the Day S01E13 - #13: ssmtp

Category Popularity

0-100% (relative to OpenSMTPD and sSMTP)

OpenSMTPD

sSMTP

SMTP Server
42 42%
SMTP Server
58% 58
Email
40 40%
Email
60% 60
MTA
41 41%
MTA
59% 59
Email Delivery
37 37%
Email Delivery
63% 63

User comments

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Reviews

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

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.
Source: www.linuxlinks.com

sSMTP Reviews

We have no reviews of sSMTP yet.
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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.

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

sSMTP mentions (0)

We have not tracked any mentions of sSMTP yet. Tracking of sSMTP recommendations started around Mar 2021.

What are some alternatives?

When comparing OpenSMTPD and sSMTP, you can also consider the following products

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

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...

msmtp - msmtp is an SMTP client.

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

sendEmail - sendEmail is a lightweight, command line SMTP email client.

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