maildirsize file

root@clara [~]# cat /home/jckmedia/mail/domain.com/username/maildirsize

Squirrelmail: [ALERT] You exceeded your mail quota

Squirrelmail webmail will sometimes throw the following error message when sending (or moving) an email:

ERROR: Could not append message to INBOX.Sent.
Server responded: [ALERT] You exceeded your mail quota.
Solution: Remove unneccessary messages from your folder and start with
your Trash folder.

Common sense would say to delete your trash. Well, that’s not going to work. The problem is that the “maildirsize” file in the user’s Maildir is not showing the correct quota information. Simply delete the file from the user’s Maildir and the problem will go away. When the user receives a new email, the file will be recreated with the correct information.