Mail delivery from or to particular domain fails: do not list domain example.com in BOTH virtual_alias_domains and virtual_mailbox_domain

Dmitry Bystrov

10 months ago

Symptoms

Mail delivery from or to particular domain fails, the following bounce message is received:

Undelivered Mail Returned to Sender
(...)
<jdoe@example.com>: User unknown in virtual alias table
The following record is found in var/log/maillog:

postfix/trivial-rewrite[15060]: warning: do not list domain example.com in BOTH virtual_alias_domains and virtual_mailbox_domains

Software issue in Plesk with ID #PPPM-11246.

Until the issue is resolved, apply the following workaround:

Login to the server via SSH
Change the hostname under Tools & Settings > Server Settings from Example.com to example.com and click OK

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