Your Mailbox Is Full

I went to work tonight to pick up a couple of datasets so I can start working from home. I checked my emails. Naturally, my mailbox was full.

If my mailbox is full, how is the system administrator able to send me an email everyday to tell me that my mailbox is full?

Mr. System Administrator, you are taking up my valuable space. How can YOUR emails get through if my mailbox is full?!?