I've now sucessfully set-up
fail2ban with
SquirrelMail for ISPConfig3 on CentOS v5.3 using the
Squirrel Logger plugin to limit the number of login attempts. If there's any interest in how to do this, I'll write it up and post it. Whilst the process is covered in a few Web places, there are some steps that could cause frustration
Let me know if there's any interest?