Outgoing Email is Blocked

My outgoing email hadren50 at zoho .com was blocked because I exceeded the 20MB daily limit. It has been over 24 hours now and I would like to know if it will auto-magically be unblocked and how long it takes. Or do I need to contact an administrator to reset it? Who would that administrator be? Also, is it true that I could have compressed all the pics into a zip file and sent up to 200MB without an issue?

I dunno.