Overview Monitoring mail outbound (egress) using Splunk isn’t as straight forward as you might think. I’ve put together a nice search string that will help identify egress email from an Ubuntu server.
Overview If you need to build your own Postfix, Dovecot, SpamAssassin and Roundcube server for your own mail hosting, look no further than this all in one Ansible script. Just configure the global configuration file, run the script and BAM, you have a fully functioning mail server! This script completes an end to end configuration… Read more »
So if you are reading this then you have probably seen what appears to be every bot in China connecting to your Postfix server to attempt anything from relaying to auth attacking. Well, have I got the solution for you! Now before you implement this, I will warn you, this is very restrictive, it doesn’t… Read more »
Domain and Records Before you start anything, you need a domain. If you don’t have one, purchase one. Because it takes time to replicate the records, you need to start this processes first. You will need to create A records for the domain, I created the following: @ www mail smtp imap webmail I have… Read more »