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Question Relay access denied on one domain only

Olma67

New Pleskian
Server operating system version
Ubuntu 20.04.5 LTS
Plesk version and microupdate number
Version 18.0.45 Update #2, zuletzt aktualisiert: 2. Aug. 2022 09:25:53
Hi, guys!
I am hosting nearly 20 domains on a Plesk server. All domains can send and receive e-mails. Except of one, which formerly worked, which cant receive any e-mail anymore. Sending e-mails is working.
Mxtoolbox sais all is fine and plesk repair mail did nothing (found zero warnings and zero resolved errors, zero error messages).
Sending external Mail to receipient to this particular domain, it sais error "5.5.4 571 <[email protected]> Relay access denied".
What is going on? No, the domain is a not an IDN-domain.
Can someone push me in to the right direction?
Thank you!
 
hi @Olma67 ,
is your domain having the same IP assigned that it is resolved to?
you also can check your /etc/hosts, probably it contains wrong record for this domain.
 
Does /var/spool/postfix/plesk/virtual_domains.db contain that domain? (Unfortunately I don't know what this map file is generated from.)
 
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