#==========================================================================
# SMTP -- Only if smtp patch has been applied
#--------------------------------------------------------------------------
set smtp_serv = "smtp.mail.yahoo.com"
set smtp_user = "ulferikson" # log on to $smtp_serv as $smtp_user
# set smtp_pass = "" # use ESMPT and "AUTH LOGIN"
# Warning: password is sent as plain text (base64 encoded. no encyption)
I found this in a quick search, but it's windows
(
http://www.geocities.com/win32mutt/rc/muttrc-1.4i.html)
You should be able to tweak your, ".muttrc"