[Pkg-exim4-users] Exim not playing with Fail2Ban on Debian Wheezy i386

[Just Ian]

I said:

> This inspired me to purge fail2ban and exim4 on the server in
> question, then reinstall them.
>
> This has worked :) but I still don't understand why :(

It was a memory shortage, specifically not enough space on the stack
for the fail2ban user.

Why that wasn't apparent in the error messages, I don't know, nor why
it will work with Postfix in the same size of memory, but...

  Ian