Hello, I am curious to know why do you have 110 000 mails in the mail queue to begin with ? are they all deferred mail ? and if so, can you report the log line that could contian the reason of the defer ?
It happened to me once when I have (mis)configured quotas for my users. When a user was over quota, postfix kept retrying again again instead of bouncing the mail. The problem is that the user had a filter that forwraded the mail to another mailbox, so each delivery attempt by postfix was also forwarded to another mailbox and that other mailbox eventually got over quota too. In addition, some e-mails were sent from a non existing address (a fake address used by scripts or windows apps) and the over quota bounce e-mails to those addresses also got deferred ! I ended up having 18 000 mails in the active queue and 35000 in the deferred queue. And above all, a colleague has flushed the queue, making the performances even worse... -- Yassine.
