The Mail Queue tab on Tools & Settings > Mail Server Settings won't stop loading.
There are too many messages in the mail queue. The backend utility
mailqueuemng is attempting to read information about them all, which takes a lot of time and may lead to a control panel timeout.
Check how many messages are in the mail queue:
- #766 The server is saturated with SPAM. There are many messages in the queue. The mail is sent slowly.
- #1711 Many email messages are sent from PHP scripts on the server. How can I find the domains on which these scripts are running?
- #6114 Parallels Plesk Panel is overloaded with spam messages because it is working as an open relay.