a (probably breathtakingly stupid) mta question

[dep]

greets, chilluns!

in due course, which is to say in the next week or so, i intend to do 
an install-from-scratch of suse 8.2. my question does not have to do 
with the advisability of this.

instead, i'm pondering going with the flow, instead of fighting. i'll 
endure the delightfully named grub over lilo, and i'll acquiesce to 
postfix over sendmail. it is about the latter that my question 
arises.

my sendmail.cf includes my being able to pretend to be 
linuxandmain.com. without this, i cannot send mail purporting to be 
from linuxandmain.com.

problem is, i can specify only one such masquerade in sendmail, which 
screws me up in sending messages from the other domain i own, 
drippingwithirony.com.

my objection to postfix is that i frankly have no idea how to set up 
the masquerade -- it was tough enough with sendmail. by dread of 
making the switch, though, will be salved if it is true that i can 
masquerade multiple domains, which i couldn't do with sendmail.

anybody know if this can be done?
-- 
dep

http://www.linuxandmain.com -- outside the box, barely within
the envelope, and no animated paperclip anywhere.