Quick Fix: Filesystem notification initialization error — contact your mail administrator (check for configuration errors with the FAM/Gamin library)

This error can be seen in your mail client and is often caused by Courier. If you are the system administrator of the mail server, simply install libgamin as follows:

If you are root:

apt-get install gamin

If not:

sudo apt-get install gamin

Restart all of your courier services as follows (requires you to be using bash shell):

If you are root:

find /etc/init.d/ | grep courier | while read line; do $line restart; done

If not:

find /etc/init.d/ | grep courier | while read line; do sudo $line restart; done