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Knowledge Base

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

 
mailplesk for linuxpostfixserversoftware

Symptoms

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

    Undelivered Mail Returned to Sender
    (...)
    <[email protected]>: 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

Cause

Software issue in Plesk with ID #PPPM-11246.

Resolution

Until the issue is resolved, apply the following workaround:

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