Usually, email data is stored on the IMAP server and it is synced with the desktop email client (if applicable), which stores them in a local cache file on your computer. If the eM Client application installed on your computer says “not enough disk quota,” then you might have exceeded the disk space on your computer. It is because the eM Client does not enforce any size limits on your database. Generally, eM Client’s database folder is stored on your computer. Sometimes, freeing up your disk space can resolve the error. To troubleshoot the eM Client not enough disk quota issues further, go through the solutions given below.