Warning. Geek Alert.
If your “Business” IP address changes AND you have postfix set up to NOT allow relaying from the outside world (like you should, to avoid being an ‘open relay’ spam source, well, all at once you can’t send mail.
I’m starting to have issues with $CABLE_ISP. You know the one, the one whose name sounds sort of like a part of male anatomy. Which more and more is seeming to be correct.



