I had to change the root password for MySQL on a server. Exim also uses MySQL for users etc.
I didn't think Exim/Dovecot used that password, but now things are not working well and I'm pretty sure they are related.
When I try to start Exim:
Starting exim: Error loading mysql.so: /usr/lib64/exim/4.72-6.6.amzn1/lookups/mysql.so: undefined symbol: mysql_servers
2014-09-13 19:13:22 Error loading lookup module mysql.so: NULL
Running service --status-all
gives me
exim dead but subsys locked
I've checked for /eximdisable in /etc/, nothing there.
Disk space is 85% used, file handles 7% used.