Relatively new in Linux world. I run RH7.3 as a mailserver for our small organization. Currently, everyone has a pop address and I pick the mail from the different accounts at our ISP (through dialup) using Fetchmail and distribute locally. However, we are looking at changing this soon and as the 'techie', I want to get in gear. Two questions; will fetch mail enable me to receive all mail destined for xxx@mydomain.org and then distribute to the users as it does now? Secondly, what will I need to add to make the email available to the users when they are away somewhere and have access to internet? Help appreciated.

Only use fetchmail for POP mail. If what you want is to now handle mail for your own domian, use postfix, exim, or the like. I do Exim, Cyrus IMAP and Squirrelmail for webmail. This would allow users to use Outlook, OE, or internet if they're out of the office. Squirrelmail is pluggable, and needs Apache and PHP.

OK does this mean I have change my MTA, and use IMAP?

I just used my setup as an example. What are you using now besides fetchmail? If you decide to check out Squirrelmail, check out it's requirements

Currently I'm using sendmail and fetchmail for email handling. Running on RH7.3

So you just have to find a combination that will get along with sendmail, or use postfix instead, which Is easier than sendmail.

use a collection of a few, for squirrelmail you need to install imap, but you might as well leave your pop3 server running to get with your favorite mail with your favorite email client. You will be able to run a sendmail/postfix mailserver locally with your own domain name, and also still use fetchmail to grab email from different isp's mailservers. it will just add it to your inbox on your locally run server, if this is what you are trying to do..

OK I made an attempt at squirrelmail with version 1.4.2. I downloaded an rpm and installed on my RH and seems to work but only for reading mail, not sending. I enabled imap in xinetd and I guess squirrelmail is now picking mail from the server using IMAP4. No idea why the SMTP is not working yet port 25 on the server is as open as ever. I have php-4.1.2-7. What do I check? Have read of IMP and openwebmail and will try them out too sometime. Still working on the intranet for testing these, not ready to go onto the highway.