SOLVED: Re: mail / mailx question

[Paul Allen Newell]

Solution was to edit /etc/mail/sendmail.mc to add RELAY_MAILER_ARGS and 
ESMTP_MAILER_ARGS with the correct port number and then to use the '-r' 
option of mailx to fake out the sender to an legit address (in my case, 
using same address as who I am sending to). Never got to the issue of 
dealing with multiple port numbers for different emails as I only needed 
the one to get from my 192.168.2.x LAN to pnewell at cs.cmu.edu

Thanks to everyone on this list who helped me sort this one out,
Paul