Can't send emails to public domains

[ThunderKB]

Hi,

There is a mail sending issue in our email server. We can't send emails to outside domains only from one email account(user3@domain.test). But we can send from other email accounts. all incoming emails are working. This issue is only for one email user. I have attached the delivery error report. Can anyone help me to resolve this issue pls..

errr.JPG (57.71 KiB) Viewed 2682 times

[DualBoot]

Hello,

you must verify and clean your public mail server IP.
You must check that your public server IP has a reverse DNS and your public server hostname resoved with same IP.
Also check your EHLO hostname.
And use DKIM and SPF to get better score at SPAM detection.

Regards,

[JDunphy]

What dualboot said. Also follow some of the ideas from this link below

https://bridge.grumpy-troll.org/2020/07 ... erver-bcp/

HTH,

Jim

[ThunderKB]

Thank you for your replies..
This issue has been resolved automatically after 7 days

[DualBoot]

IT'S A MIRACLLLLEEEEEEE !!!!