I'm unable to send mail out of my Redhat 7.1 box.  I tried with Evolution 
and with "Mail" at the console.  It seems to be because it's trying to send 
mail out through the Exchange server but our Exchange server is set up with 
a port other than 25.  Can someone tell me how to set it up so it sends the 
mail to exchange at a different port?  Or where to find more information on 
this?

Thanks,
Brady