I'm not sure if anyone else has experienced this, or just me. It has been doing this on the previous verison of ISPconfig aswell, .16. I am currently running .18 What happens is, when I create a new site and lets say 5 email address under that site. Test it, works fine, i can receive email from the server under the new user i created for that domain. Now the client comes to me and says he wants to send through the server his emails. Now I dont allow that as I can't afford to take the chance and have my server blacklisted incase 1 dumb client sends spam through it. Seeing that I have over 140 active clients with sites on the server having it blacklisted will be disasterous. Anyway, when that happens I set the MX records for that domain to ASP.MX.GOOGLEMAIL.COM and I use Google Apps for just the clients email. (Yes I do this as I have corporate clients and they dont ever use the control panel on ISPC, giving them GoogleApps email with their own domain name, makes them non the wiser.) Ok so I then go to Options and I set mailserver as "External". Ok now the client can get his emails from google perfectly and he is very happy. BUT for some reason when his website on ISPC tries to email his own domain name, the mail gets delivered to the Maildir queue locally on the server and goes somewhere on the server that I cant find. The ISPC server does not lookup the MX records and does not send out the email to Google Apps like it should. The mail.log file just says (delivered to maildir). Then nothing else. Anyone else experienced this?