To generate a sendmail configuration file you must edit the file /etc/mail/sendmail.mc (make a copy of it first for future reference). This file is used to generate the sendmail.cf file which is the main sendmail configuration...
Here is how to set up Sendmail the quick method, but also you may want to also check out the better method for setting up Sendmail. Allowing SMTP (open Port 25) using sendmail On an initial installation of Linux, sendmail blocks smtp and only allows...