Hello, 

I have a 3 meg limit on one of our Domains/Customers.

 

They noted that last night they stopped getting emails. Further review shows they now have 9 megs of email on the server and the mailbox full alert is going out. 

Not one large mail is in place but rather loads of emails dating back to 2011. It looks like some change on the clients end "pushed" their local emails back to the server extending their space allocation beyond the set limits.

Bug or know issue? I have version 16.3 Enterprise btw.