Changing sender under Pine.

[Jose Albores]

Is there any way to change the sender's name under pine?
I saw I can change the domain name, but how can I change the userid?
The reason is that we all are NOT in a LAN at home and I named my
machine as "dr.defense.edu" as a "fantasy" name.
We all at home have different accounts in my Linux box but we all share
the same e-mail account.
TIA.
--
J. M. Albores