liebes #fediverse, ich brauche einen Tipp:

welche Dienstleistung suche ich, wenn automatisierte Mails, die wir per SMTP an von einem Server bei unserem Hoster, grundsätzlich gut funktionieren, aber von einem (leider sehr großen= Mailprovider grundsätzlich abgewiesen werden, und dieser leider auch keine #DMARC-Reports verschickt? Nach was für einer Firma oder Freelancer muss ich da suchen, um Hilfe zu finden? Wie lautet das richtige Stichwort zu meinem Problem?

#fediask

I operate my own mail server. I followed the great instructions in "Run your own mail server" by @mwl

Last night I had the idea, that it would be nice to publish a public key for S/MIME in my #DNS like the stuff for #DKIM, #DMARC and #DANE. I would really like to automatically get #encrypted emails by other people.

Turns out, this idea isn't new, but #RFC8162 from 2017 is marked experimental.

Any news on this?

Please boost. I really would like new information about this.

System Administration

Week 8, The Simple Mail Transfer Protocol, Part III

In this video, we look at ways to combat Spam. In the process, we learn about email headers, the Sender Policy Framework (#SPF), DomainKeys Identified Mail (#DKIM), and Domain-based Message Authentication, Reporting and Conformance (#DMARC). #SMTP doesn't seem quite so simple any more...

https://youtu.be/KwCmv3GHGfc

#SysAdmin #SRE #DevOps