My SquirrelMail install has been running just fine until yesterday.
Haven't made any changes to the configuration, and have not added anything
to the server. The response times for accessing any mail folder has
dramatically increased in the Squirrelmail interface. Accessing non-mail
utilities in squirrelmail is very fast (ie Calendar, ToDo Lists, options).
Plenty of disk space available. System load is minimal. By monitoring
the logs I notice that it appears the imap login process is taking a long
time everytime I try to access a folder or compose a message. What could
make this all of a sudden slow down?