How to Delete an user and Purge attachements with a common directory mail_attachment_dir with SIS for all users.

     Hello everybody,

What is the best way to delete an user mailbox (ex: 

/var/mail/johndoe ) when all attachments (for all users) are in a common directory with SIS deduplication (ex: mail_attachment_dir = /var/mail/attachments ) ?

Trying to delete user mailbox directory (rm) and do the command : doveadm -v purge -u johndoe leave all johndoe's attachments orphelin.

Best regards, TN