**Jonatan Hatakeyama Zeidler** @Jonius@mastodon.social · Jan 15, 2022, 16:27

**Jonatan Hatakeyama Zeidler** @Jonius@mastodon.social · Jan 15, 2022, 16:27

@aral, I can't sign the web0 manifesto. The error message: https://pastebin.com/xdqLGKiL
The message links to this guideline for senders: https://www.gmx.net/mail/senderguidelines/
Is it time to switch the mail provider?

**bonifartius 𒂼𒄄** @bonifartius@social.cleverlibre.org · 2022-01-15T16:38:45Z

bonifartius 𒂼𒄄 @bonifartius@social.cleverlibre.org

except the spamhaus racket seems like sensible rules!

you need to add a reverse dns entry at your registrar, resolving from the ip of your mailserver to your domain.

**Aral Balkan** @aral@mastodon.ar.al · Jan 15, 2022, 16:44

**Aral Balkan** @aral@mastodon.ar.al · Jan 15, 2022, 16:44

Aral Balkan @aral@mastodon.ar.al

@bonifartius @Jonius Thanks for the tip, will look into it :)

**Aral Balkan** @aral@mastodon.ar.al · Jan 15, 2022, 16:45

**Aral Balkan** @aral@mastodon.ar.al · Jan 15, 2022, 16:45

Aral Balkan @aral@mastodon.ar.al

@bonifartius @Jonius (Although my mail server is at my domain.)

**Aral Balkan** @aral@mastodon.ar.al · Jan 15, 2022, 16:46

**Aral Balkan** @aral@mastodon.ar.al · Jan 15, 2022, 16:46

Aral Balkan @aral@mastodon.ar.al

@bonifartius @Jonius Hmm, I wonder if they’re not taking the public suffix list into account when checking for that…

**bonifartius 𒂼𒄄** @bonifartius@social.cleverlibre.org · Jan 15, 2022, 16:48

**bonifartius 𒂼𒄄** @bonifartius@social.cleverlibre.org · Jan 15, 2022, 16:48

bonifartius 𒂼𒄄 @bonifartius@social.cleverlibre.org

@aral
you need to setup a ptr record (somewhere at your registrar) regardless, it doesn't happen automatically.