This only applies to pop/imap mail retrieval and not mailuser or client login, right? To log into ispconfig one would have to use <domain>_<username> I assume?
Also, after a new mail account is made it will take at most 5 minutes before you can access it with the xx@xx style username right?
It would be nice to have the script execution tied into mail user creation.
Thanks for the good tip, I'm definately going to give it a try.