Request: Please sign this list's messages via DKIM or SPF

Sebastian Hagedorn Hagedorn at
Mon Apr 4 12:12:35 EDT 2016

Personally, I think that's a phenomenally stupid approach. As long as you 
can't show me an RFC that says you MUST or even SHOULD use SPF or DKIM, 
you're breaking SMTP.

> Due to the exponential increase of spam, we generally have to reject all
> messages which are not secured by SPF or DKIM, and we know a lot of other
> people who do the same (by the way, this has proven to be extremely
> effective in our case). When our MTA encounters such a message, it
> rejects it and returns a bounce message to the pretended sender,
> notifying him about the problem.
Sebastian Hagedorn - Weyertal 121, Zimmer 2.02
Regionales Rechenzentrum (RRZK)
Universität zu Köln / Cologne University - Tel. +49-221-470-89578

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