Occasionally Plesk can be a little temperamental and suspend accounts over expired validity errors. Attempting to “unsuspend” the account from your Plesk control panel will generally fail, and you will need to activate the domain by force using the command line.
In Windows, goto Start -> Run and cd to your Plesk “bin” folder – typically c:\Program Files\Parallels\Plesk\admin\bin
Then type the following:
domain.exe –on yourdomain.com
This can take a little while but you should see “SUCCESS, status of domain changed”, and the domain will again appear as “Active” from your Plesk Control Panel.
When troubleshooting the Exim log file:
tail -f /var/log/exim_mainlog
If you need to restart or rebuild Exim, you can dump your databases
Which Exim just rebuilds automatically by issuing the following command via SSH:
rm -fv /var/spool/exim/db/*
Then to start Exim:
If you’re unable to restart mysqld and troubleshooting the cause: if u log into SSH and go to /tmp you may see that there is no simlink
To create a simlink you can do the following:
chmod 1777 mysql.sock
chown mysql.mysql mysql.sock
Create a symlink for the sock file :-
ln -s /var/lib/mysql/mysql.sock /tmp
Restart mysql :- service mysql restart
Then your MySQL service should be back to normal.