Is it possible to change the time for mail to give up on sending (Retry) from 5 days which is right now to like 1 day or 12 hours for plesk postfix MTA?
Edit the following to /etc/postfix/main.cf near the top:
# nano /etc/postfix/main.cf maximal_queue_lifetime = 1h maximal_backoff_time = 15m minimal_backoff_time = 5m queue_run_delay = 5m