accessing gmail

[Tony]

I'm having trouble getting to gmail messages.  I can access my googlemail 
account through imap with no problems, that's an old one.  The problem is 
trying to get to my current gmail account, which is actually 
tony at tonyburrows.com.  The page shows up as 
mail.google.com/a/tonyburrows.com and I can't see how to get at it.

mail = imaplib.IMAP4_SSL('imap.gmail.com, 993)
mail.login(username, password)

logs me in to my googlemail account and lets me collect mail in that one, 
but how do I get to the gmail one?

Tony