Mail not sending [URGENT]

[admin@amanah.co]

Mail is not leaving the server, it is being accepted by exim and is not being sent out. No bounce messages are being generated. The queue keeps growing but no messages are being sent out.

We are running WHM 9.9.8 cPanel 9.9.8-R160
RedHat 7.3 i686 - WHM X v3.1.0

This problem is becoming very serious, since no users have been able to send mail for a few days. The problem is compounded by the fact there are no bounce messages or failure notices.

Exim, spamd, antirelayd, clamd and Mailscanner are all running.

Please advise.

[chirpy]

Has your exim.conf suddenly got the new split spool directive in it? If so, do a search on the forums for "split spool" and you'll find solutions.

[admin@amanah.co]

thanks so much, that fixed it!