> On 22. 3. 2026., at 14:07, Matthew via Postfix-users > <[email protected]> wrote: > > Hi, > > I have been using postfix-policyd-spf-python > <https://packages.debian.org/trixie/postfix-policyd-spf-python> and noticed > today it spits out links to a dead domain in its errors and doesn't appear to > be actively maintained? This of course does SPF only and not DKIM or DMARC. > > The Postfix Add-on Software page <https://www.postfix.org/addon.html> states > "Note: Postfix already ships with SPF support, in the form of a plug-in > policy daemon. This is the preferred integration model, at least until SPF is > mandated by standards." which I believe is explained on Postfix SMTP Access > Policy Delegation <https://www.postfix.org/SMTPD_POLICY_README.html> but also > has to reference the dead openspf.org site via web.archive.org and back to > python-postfix-policyd-spf > > A lot of people seem to use either of these milters rspamd > <https://docs.rspamd.com/tutorials/integration/#using-rspamd-with-postfix-mta> > or opendkim <https://wiki.debian.org/opendkim> (which also relies on > postfix-policyd-spf-python for SPF) > > What is the preferred SPF + DKIM (and/or opendkim) tool that integrates best > with Postfix? I don't need any complicated bayesian anti-spam techniques yet, > just basic SPF + DKIM (aka DMARC policy) enforcement. > > I know there's loads of options but I'm after what people recommend, like > and find works best with Postfix. The SPF + DKIM + DMARC "preferred > integration model". > > Kind Regards, > Matthew > > _______________________________________________ > Postfix-users mailing list -- [email protected] > To unsubscribe send an email to [email protected]
If you are willing to try new DMARC milter for Postfix, I released the pydmarc [1] project which is a milter implementation in pure-Python asyncio. [1] https://gitlab.com/duobradovic/pydmarc/-/blob/master/dmarc/milter/README.md <https://gitlab.com/duobradovic/pydmarc/-/blob/master/dmarc/milter/README.md>
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