how to restrict systems/users to use sendmail server?

Is there any other way to restrict users/systems/domains/IPs to use sendmail server except listed in /etc/access(.db)?
I just want to secure sendmail server so that none of the other system can send mails/messages/spams from sendmail server except we have mentioned the IPs of LAN systems in /etc/access.db.

samengrAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

ltxdaCommented:
You can configure Sendmail to utilize authentication and not relay unless a user has been authenticated.  Check the relaying configuration portions of the docs and also AUTH.  
0
ltxdaCommented:
Here is another, more advanced configutation how-to's:

http://www.sendmail.org/m4/anti_spam.html

http://ultra.ap.krakow.pl/~raj/sendmail/english.html    <-  I think this one is more what you're looking for if you don't want to settle for just SMTP Auth.

Hope this helps!

LTxda

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Email Servers

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.