Before I commit my mail-based app to DH I wonder if other users could tell me their experiences of the following DH mail limitations which could apparently cause loss of service or incoming messages.
a) “The maximum inbox size is 3000 messages.” (says the Panel on after trying to set ‘Expire read messages…’ to 99999)
Is this true?
b) “you will NOT be able to log in even to just delete mail if you reach your quota!” (says the Panel).
Again, is this true?
c) “Expire read messages when inbox reaches  messages” (on the Panel) has no checkbox to disable.
Is there really no way to disable expiry?