I think I am working out the final kinks in using squirrelmail with a new ISPConfig 3 installation. I followed all the instructions for a Fedora 10 install at: http://www.howtoforge.com/perfect-server-fedora-10-ispconfig-3 At first, I had a problem with courier-imap, but all services are running now and .../squirrelmail/src/configtest.php Passes all tests. For some reason, I can log in to new email accounts and send mail. However, mail messages are not being received. Not sure where to start troubleshooting. I suppose I can go to the logs in /var/log such as # cat maillog | grep email@example.com ... Now what? Thanks for any help!!