Hey I've got a box running the latest release of Plesk 9 and Cent OS 5. For some reason the other day apache went down and the error message that displayed when restarting the process was that there was an error in the http config for a site on the server. Well the site wasnt in use anyways so I just deleted it and restarted apache and the sites came back up just fine. However now e-mail doesnt work on any accounts sending nor receiving. When I try to send an email Mail (On OS X) just rejects it and when people send me mail it gets a undeliverable message.