And it's DONE! The closing part "E-Mail Done My Way, Part 4 - The final stuff" is now published. Fail2ban, checks - all at - comments to this toot will show up as comments on the blog through Magic! Sorry, Twitter friends - a exclusive. Enjoy!

@jwildeboer Thank you or this nice evening lecture about email servers. It took out a lot of the mystery what dmarc dkim and spf do and email servers seem to be a lot simpler than I thought before.

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