This is the qmail that we're currently running at antartida.xyz. We
took the notqmail repository and essentially applied patches for AUTH,
SPF and DKIM.
The DKIM patch does not come from the notqmail repository. We took it
from the excellent notes at
https://www.memoryhole.net/qmail/
We also applied the any-to-cname patch. But we did not take the
oversize-dns patch. Any mistakes here are mine---I had to merge it as
best we could and resolve various conflicts.
This is it. -- MAILER DAEMON :)
(*) Commit message from the notqmail branch
Remove FILES.auth, add new files to FILES.
Realphabetize Makefile targets. Remove trailing whitespace variously.
Remove duplication declaration of auth in qmail-smtpd.c
Modification to Erwin Hoffmann's SMTP authentication for qmail-smtpd,
qmail-remote.
Apply Jana Saout's qmail-spf-rc5.patch
From https://www.saout.de/misc/spf/
This is an SPF implementation for qmail.
SPF is something like a DNS based "reverse MX" system to designate
permitted senders for mails depending on the domain name. The goal
is to disallow sender address forgery.
The patch is entirely written using the qmail string and DNS
functions, and thus completely integrated into qmail without
external dependencies.
It can check incoming mails inside the SMTP daemon, add Received-SPF
lines and optionally block undesired transfers. The check is
performed at the envelope level.
From https://www.fehcom.de/qmail/smtpauth.html#PATCHES
Generic SMTP authentication for qmail-smtpd and qmail-remote.
Complies to RFC 3848 and RFC 4409.
* Provides now CRAM-MD5 authentication for qmail-remote as well.
* Fine tuning of SMTPAUTH annoncements for qmail-smtpd and
SUBMISSION support.
* Sender based authentication according to 'Mail From:' and
authenticated smarthost relaying for qmail-remote.
* Fixed bug (0.8.2): qmail-smtpd secretly allows auth even when
disabled! (tx Chris P.)
* Fixed AMD64 bug for MD5 (0.8.3) and small others (tx Alan P.)
