• The APS Catalog has been deprecated and removed from all Plesk Obsidian versions.
    Applications already installed from the APS Catalog will continue working. However, Plesk will no longer provide support for APS applications.
  • Please be aware: with the Plesk Obsidian 18.0.78 release, the support for the ngx_pagespeed.so module will be deprecated and removed from the sw-nginx package.

SMTP-Error 554 if domain has capital letters

A

Alexander79

New Pleskian
Hello,

my Plesk-Version is:12.0.18 Update #13

After the update some of the Clients gets following error-message while sending Mails:
SMTP Fehler: [554] mail server permanently rejected message (#5.3.0)

The Problem accours, if the domain name is written with first letter in capital letter:
Problem: Domain.com
No Problem: domain.com

If I delete the Domain and add it new without a capital letter, there is no problem.

Problem is reproducible.

Regards, Alex
 
You must log in or register to reply here.

Similar threads

M
Issue Mail issue: Remote server returned '554 5.7.4 < # 5.7.4 SMTP; 554 5.7.4 failed to deliver message via SSL/TLS. >' -lost connection after STARTTLS from
Replies
1
Views
3K
scsa20
scsa20
nethubonline
Forwarded to devs Possible DMARC Bypass - Spoofed MAILER-DAEMON Return-Path Not Rejected
Replies
10
Views
3K
Sebahat.hadzhi
Sebahat.hadzhi
L
Resolved not sending via external SMTP (msmtp + Office365)
Replies
2
Views
2K
lema
L
C
Issue No more mail received when activating Greylisting
Replies
2
Views
3K
Chrisg
C
nethubonline
Forwarded to devs Plesk DMARC checker parses invalid TXT records that do not start with "v=DMARC1;" - deviates from RFC 7489
Replies
2
Views
2K
Sebahat.hadzhi
Sebahat.hadzhi
Back
Top