Rodolfo J. Paiz wrote:
I doubt it's the best, but I wrote it and I like it and it's probably all you need as a starting place:
http://www.simpaticus.com/linux/sendmail-smtp-auth-howto.php
Interesting.
How does SMTP AUTH help on an externaly public mail server?
I was under the impression that SMTP AUTH was just for allowing "roaming" access to an SMTP server for out going mail.
You are exactly correct. SMTP AUTH is so that your users can relay mail through your server when they are outside the network and not covered by the fixed IP addresses you allow to send via /etc/mail/access. Or, in my case, I allow _nothing_ via fixed IP address and force everyone to AUTH.
Users who travel, users with notebooks, etc. are all people who benefit from SMTP AUTH at the same time as you make sure that you are not an open relay to be abused by spammers. Again in my case, I have a webhosting server in Texas, and /ALL/ of my customers are "roaming" users. There are no local customers, by definition; so AUTH becomes priceless.
-- Rodolfo J. Paiz rpaiz@xxxxxxxxxxxxxx http://www.simpaticus.com