I can't delete emails as I keep getting an error message that says: Error
Call Comcast security and ask them to look at your account. They should be able to sort this out for you---------------
Comcast Customer Security Assurance-------------------
Normal business hours (6:00 am to 2:00 am EST, 7 days a week)
1 - 888-565-4329
I'm having the same issue, too. My mailbox usually is around 3GB in size, but on Tuesday evening it suddenly said my mailbox was full. I check the trash can and found 190,000 emails in there! I never have that much, and while browsing found hundreds of copies of the same emails. Emptying the trash can looks like it works, but if I switch to the Inbox and then back to the trash can it's full again. Calling Comcast support has been useless so far, and I'm heading into my third day with no new emails.
Come on, Comcast - you're killing me!