Allow separation limit of inodes for different directories
On some platforms, the letters can be stored in the home directory of the client in his cageFS (for example in ~/mail/ ). These letters can be stored in large volumes on the client account, but they do not interfere with anti-virus scan or backup system.
If you set a limit on the number of inodes to limit the file size of the site (eg cache files), it will also lead to the inability to get the mail.
To solve the problem, you can make a separate calculation of quotas for inodes for different directories within the home directory of the client, or add an exclude for a particular directory.