Setting up a send-only mail server

I'm trying to setup an easy mail server to support my "lost password" function in my website.

I'd like to know if Exim is good or not, or is there any better solution?

I would also like to know that it isn't easy to manage an smtp server (such as blocking junk mail, or being hacked, etc), does setting up a send-only mail server cause any security issues?

Thanks!

Solution 1:

Simple example to setup postfix with satellite SMTP

1. install postfix

   sudo aptitude install postfix

2. configure postfix

   sudo vi /etc/postfix/smtp_auth

   add your smtp authentication information in /etc/postfix/smtp_auth:

   smtp.foo.bar user@host:password

   and generate the postfix lookup table file (/etc/postfix/smtp_auth.db) using

   sudo postmap /etc/postfix/smtp_auth

   add the relayhost (outgoing smtp server e.g. smtp.foo.bar on port 587, depending your relay host info) information to /etc/postfix/main.cf:

   relayhost = [smtp.foo.bar]:587

   add the following lines to /etc/postfix/main.cf in order to enable smtp-auth for outgoing mails:

   smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/smtp_auth smtp_sasl_security_options = noanonymous

3. restart postfix

   sudo service postfix restart

Solution 2:

I had a similar problem and here is how I did. I created a gmail account for my daemon. I set up filters from gmail.com.

And I send my mail using http://iqjar.com/jar/sending-emails-from-the-raspberry-pi/

The guide is for raspberry pi but it will work as long as you use a debian or alike)

If you protected your server from bruteforce (fail2ban ?), it should be fine.