Question re: Mail
 

How do I setup mail on my linux server?

I know I'm not giving any details but it's because, well, I don't even know where to start.

What is the equivalent to Exchange server for Linux? I know sendmail only sends the mail....how would I setup a full email server with multiple users and the ability to send and receive email from the internet?

sendmail will send and recieve. all you need for a basic setup with 1) an MTA like sendmail, exim, qmail, postfix... and 2) and MUA like sylpheed, pine, kmail etc.... to get it running locally. to share mail you'd then want a pop or imap server to allow remote users to read mail on your server.

Re: Question re: Mail
 

You are going to have to google for a lot of details, but it is really straightforward.

First, sendmail will both send and receive (it is a Mail Transport Agent MTA). If you own a domain and you have your server on the internet with a permanent IP address, then mail will come straight to your box and sendmail will pick it up for delivery. Delivery where? Now you have to decide between POP3 and IMAP, just different ways for your box to store e-mail and serve it up to users.

If you don't own a domain name and permanent IP address (like me,) then you use fetchmail to get the mail from your ISP, and then everything else is the same as above. Fetchmail hands the mail to sendmail who drops it in a mailbox and I use mozilla to get the mail from my mail server and read it.

I know that it awfully vague, but google for "how to set up a mail server" and see what you get.

It is straightforward, and it will take a little time (I promise!) to get it all working just right, but so many people do it that you'll quickly learn, too.

Cheers--
Charles