We recently obtained a server with Plesk 7.5 Reloaded on it. We've made a few customizations, but nothing much. Certainly nothing to qmail. However, we've discovered that any email and mailed out of PHP (using the PHP function mail()) are getting completely blocked. They don't show up anywhere. They never get to their inboxes. I've done some searching on this subject but have not found anything on it. This is extremely troublesome for us and we need to get this remedied right away. Any suggestions as to what we can do?? NOTE: I have tested sending to outside yahoo and hotmail addresses and the forms are working with no problems.