MAX SIZE

Hi:
        I know this is not a procmail question. but since all of your guys 
must also be sendmail experts, please help! :)
        My sendmail.cf has M=1500000 in there as max size, is there anything 
I can do so that one user on my system, say yan, which is me, can be 
exemplted from that rule? which means I can send or receive what ever 
size of email I want?
        Thanks in advance.

Yan