Applicable to:
- Plesk for Linux
Symptoms
Unable to receive emails to a particular email account with the following error message in /var/log/maillog
file:
550 5.1.1 john.doe@example.com: Recipient address rejected: User unknown in virtual mailbox table
Cause
Postfix virtual_alias_maps
misconfiguration. Namely the recipient address is missed in the Postfix virtual_alias_maps
configuration:
# postmap -s /var/spool/postfix/plesk/virtual | grep john.doe@example.com
#
Resolution
-
Connect to the server via SSH.
-
Add missing alias for the affected mailbox:
# echo "john.doe@example.com john.doe@example.com" | postmap -i hash:/var/spool/postfix/plesk/virtual
if it does not help after migration, remove mail account and re-migrate subscription mail content
Note: replace john.doe@example.com with the appropriate email account from the error message.
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