Software Alternatives & Reviews

OpenSMTPD VS Sendmail

Compare OpenSMTPD VS Sendmail and see what are their differences


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

Sendmail is a general purpose internetwork email routing facility that supports many kinds of...
OpenSMTPD Landing Page
OpenSMTPD Landing Page
Sendmail Landing Page
Sendmail Landing Page

OpenSMTPD details

Categories
SMTP Server MTA Email
Website opensmtpd.org  

Sendmail details

Categories
SMTP Server MTA Email
Website sendmail.com  

OpenSMTPD videos

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

Sendmail videos

breve configuracion de sendmail

Category Popularity

0-100% (relative to OpenSMTPD and Sendmail)
43
43%
57%
57
44
44%
56%
56
31
31%
69%
69
100
100%
0%
0

Social recommendations and mentions

Sendmail might be a bit more popular than OpenSMTPD. We know about 1 link to it since March 2021 and only 1 link to OpenSMTPD. We are tracking product recommendations and mentions on Reddit, HackerNews and some other platforms. They can help you identify which product is more popular and what people think of it.

OpenSMTPD mentions (1)

Sendmail mentions (1)

  • Sendmail and Exchange online - 550 5.1.10 RESOLVER.ADR.RecipientNotFound; Recipient not found by SMTP address lookup
    We are using sendmail and Exchange online with to different identies. We are experience problem that we want to receive Teams invitation to our @ sendmail.com address, when I forward teams invitation fromexchange online identite to "sendemail" identetie we are getting error. - Source: Reddit / 7 months ago

What are some alternatives?

When comparing OpenSMTPD and Sendmail, 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.

msmtp - msmtp is an SMTP client.

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

Haraka - Open source SMTP server written in Node.js

User reviews

Share your experience with using OpenSMTPD and Sendmail. For example, how are they different and which one is better?

Post a review