This was a problem I was facing in a cpanel server, email sent to any gmail,hotmail,yahoo address was bouncing back with error [crayon-6517f8743ff50978418067/] Solution: [root@mailserver] service exim stop [root@mailserver] cd /var/spool/exim/db/ [root@mailserver] rm * [root@mailserver] service exim start And problem is resolved . … [Read more...]