Qmail

qmail
Original author(s)Daniel J. Bernstein
Final release
1.03 / June 15, 1998; 26 years ago (1998-06-15)
Repositorycr.yp.to/software/qmail-1.03.tar.gz
Written inC
Operating systemUnix-like
TypeMail transfer agent
Licensepublic domain[1]
Websitecr.yp.to/qmail.html
netqmail
Final release
1.06 / November 30, 2007; 16 years ago (2007-11-30)
Repositorynetqmail.org/netqmail-1.06.tar.gz
Websitenetqmail.org
s/qmail
Stable release
4.2.29a / February 26, 2024; 6 months ago (2024-02-26)
Websitefehcom.de/sqmail/sqmail.html
notqmail[2]
Stable release
1.09 / May 6, 2024; 4 months ago (2024-05-06)
Repositorygithub.com/notqmail/notqmail
Websitenotqmail.org

qmail is a mail transfer agent (MTA) that runs on Unix. It was written, starting December 1995, by Daniel J. Bernstein as a more secure alternative to the popular Sendmail program. Originally license-free software, qmail's source code was later dedicated to the public domain by the author.[3]

  1. ^ "Some thoughts on security after ten years of qmail 1.0" (PDF). Retrieved 2007-12-01.
  2. ^ Announcing notqmail
  3. ^ "Information for distributors". I hereby place the qmail package (in particular, qmail-1.03.tar.gz, with MD5 checksum 622f65f982e380dbe86e6574f3abcb7c) into the public domain. You are free to modify the package, distribute modified versions, etc.