postfix/cleanup[331]: 13E211042A72: milter-reject: END-OF-MESSAGE from localhost[127.0.0.1]: 4.7.1 Service unavailable - try again later;
Tried via Roundcube and Thunderbird, when send as and Email Account Address it works fine, and also receive fine for both the Email Account Addresses and all the Aliases. But when the same aliases try to send the 4.7.1 error happens.
Yes I have tried multiple times to run Rebuild Mailserver, and tried to create new aliases, still the same outcome.
The domains was previous added to another User Account, and then it worked fine, but for other reasons I needed to move to other User Account, and CWP did not provided this action, so removed the domains and added the again to the other account, and the readded all the Email Aliases as these was automatically removed.
Topic: Postfix 4.7.1 Service unavailable - when Email Alias send mails (Read 8175 times)
