How to Install Mail Server ?

[jyee21]

HELP !!!!!!!! I searched for the related topic but the responses are not what I need.

I have been installing mail server on Redhat 6.2 in my network but to no avail.

I changed the file sendmail.cw by adding the aliases of my domain names.

I tried to follow many HOW-TOS documentation found online but it doesn't work either.

Please advise.

Thank you very much.

Best regards,
Jane

[CLL_Sr]

Are you using RPM's or source? Is this for a local network or a full blown mail server? We need more info.

[jyee21]

I am using sendmail-8.9.3-20.i386.rpm.
I'm doing this for a local network.

FYI, I set up a Primary and Secondary DNS for the network too.

Please advise.
Thank you.

[CLL_Sr]

I use postfix for my mail needs. It is secure and fairly simple to configure.
Here is a great Redhat How-To. http://www.redhat.com/support/resources/faqs/RH-postfix-FAQ/book1.html
If you decide to go with Postfix make sure you remove sendmail first. ie "rpm -e sendmail-8.9.3-20"

[vttimwhite]

Didn't I read somewhere that Linux uses sendmail for system/root messages? Will removing it have unintended consequences?

[CLL_Sr]

No it won't. Postfix adds a sendmail compatible binary for just that reason. Also a root to user alias in /etc/alias should also be done. :)

[vttimwhite]

Originally posted by CLL_Sr
Also a root to user alias in /etc/alias should also be done. :)

I don't understand your last sentence. Can you elaborate please? I think I need to know that.

[CLL_Sr]

That statement says that a regular user should receive root's mail. That would keep you from having to log in as root to receive mail for him. It is not good practice to run as root all the time. That is one reason we have sudo and su.

[vbp6us]

Why is it not a good idea to run through root all the time? Isnt root simply "Administrator"?

Whats sudo? Can you explain?

I have Suse 8.0...do i have Sudo? If so...how can i implent it?

Oh...how do i login as root in the first place?

I dont know if im root right now or not...