I have no clue how to do this.. I went through the Perfect Linux Setup with Debian + ISPConfig.
I am now able to set up subdomains, users, quotas, yeah all that kind of stuff. No problem to access FTP, mail and SSH after created a user.
Cos I'm inside a NAT (router), 192.168.0.2 is the IP I'm using for testing. When typing, http://192.168.0.2:81/webmail
(which is the default url to the webmail, right), I get to the webmail interface.
How to get webmail to work on http://mail.27mhz.se
??? Any help is appreciated