My users on my server in DirectAdmin consumes a lot of diskspace in their IMAP folders. I see there is an option to PURGE imap messages older dan X days (e.g. 30 days).
For normal INBOX messages, this will not hurt my customers, because they have already downloaded these messages.
However for IMAP messages, I am not sure, since their mailclients synchronise their messages with IMAP, am I right?
So, if I purge these older IMAP messages, will these also be deleted on the client side? If so... I will be having a lot of angry customers when I want to take this action.