Re: Sendmail and DKIM for bounce messages?

Otto J. Makela wrote:

Apparently, the setup I currently have does not DKIM sign messages where
the sender is the classic email bounce empty sender <>

If you use a milter to create DKIM signatures then you have to send
your bounces via a sendmail process that runs that milter.

This means that messages will languish in the mail queue for days if the
client's email systems (typically M365, Google or some such large email
handler) will not accept them, and then cause double bounces.

Isn't that a nice sh!tty requirement made up by the biggest spam
sources?
Isn't just SPF enough to fullfill their random (and useless) requirements?


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