Postgrey - Problems with Mail after upgrade

**ezafiro** · Nov 9th 2017

Hello,

I updated the Postgrey plugin for the current version auf i-MSCP.

Since them I'm having problems with e-mails to freemail accounts.
After 3-5 days I'm getting this error message:

Nemesis ESMTP Service not available 554-No SMTP

service 554-Bad DNS PTR resource record.

I checked the reverse entry at my server. This is fine. My provider recommends me too
to check my mail system. I doesn't made any other changes than this update.

Any idea where I should check/wich configuration is wrong?

Best regards

**FloRet88** · Nov 9th 2017

Hello,

Do you have checked the full DNS Health? Try https://intodns.com/ and give us feedback about DNS, Reverse PTR-Record, MX-Records,...

Your error messages are very expressive and point out to a DNS misconfiguration!

Best regards.

**ezafiro** · Nov 9th 2017

Hello,

thanks for your fast reply.

I checked DNS health (e-zafiro.com) and it seems to be all fine. Any hints/ideas?

Regards

**FloRet88** · Nov 9th 2017

Hello,

There is some MX Record difference that doesn´t match. (https://mxtoolbox.com/domain/e-zafiro.com/) -

Code

Reverse DNS does not match SMTP Banner

dns-mismatch.png

This names should be the same! So check again your Records.

GMX and other Freemail Hoster doesn´t like that and for there it looks spammy!

Best regards.

**ezafiro** · Nov 15th 2017

Thanks for your help. Seems to be fine now!

Postgrey - Problems with Mail after upgrade

Share

Daily visitors