Question : sendmail not accepting outside connections

Sendmail absolutely refuses to accept connections from outside the network. The standard answer, dnl the DAEMON_OPTIONS line does not work. Everything looks perfect, but it just does not work.

System is Centos 5 (64 bit), using SNAT. For fun, I downloaded postfix. It works, so there is no firewall issue. I would be happy to use postfix, but I can't seem to get it to work with MailScanner.  

Answer : sendmail not accepting outside connections

Glad your original problem is solved.

"The last problem I have to resolve is that I am getting "relaying denied" when trying to send from the network to outside the network."

You can fix this by editing your /etc/mail/access file. Add a line like:

192.168      RELAY

Tweak it to fit your IP ranges. Then just rebuild the access db and restart sendmail:

cd /etc/mail && make && /etc/rc.d/init.d/sendmail restart