Q: I need some help setting up a server on Mandrake 8.2. Im using Postfix. I also installed the Webmin administration util. I am a newbie to Linux and would this server to relay messages authenicated users like any where else on the Internet.
Can Postfix do this, or do I have another email program?
Thanks for the help,
Best Answer: not sure exactly what you are trying to do.. but if you are running a local mail server at home and also have a website at say foobar.com and you want to use foobar.com for emails like johnsmith@foobar.com then you would have to forward port 25 and port 110 to your local server.. and also setup the config file for your mail server.. you would also have to edit your DNS entries and add your IP address for your local mail servers.. so mail routes through say 24.24.24.24 (or whatever your IP address is through your ISP)
Re:Originally posted by: guy
I like your idea for using Squrriel Mail but I need users that use Outlook to be able to use this server to send mail.
not to familiar with postfix, but I checked google for "postfix pop before smtp" and this (http://www.postfix.org/addon.html) is what I found.
Re:Thought about qmail? I can do relaying with qmail for any static IP user I wish…never tried with dynamic clients though…for obvious reasons.
Re:I like your idea for using Squrriel Mail but I need users that use Outlook to be able to use this server to send mail.
Re:I'm sure postfix can do pop before smtp, but an alternative would be to use squirrelmail, which is a web imap email client.
This will eliminate the need to relay mail from outside the lan. users can authenticate using apache (i use apache +mod_ssl). Then apache sends the mail through sendmail/postfix. Since apache and sendmail are on the same localhost, relaying is not required.
Thus you can have an SSL secured mail server running through apache and have access to your email from anywhere on the planet that has web access and a browser. Used in combination with fetchmail and you can do some pretty sweet things 
Re:It should be able to do it, but Id setup ssh port tunneling and make them go through that to send messages myself.