My social networking site used to be working fine in sending out emails as and when it should, for instance when member just registered on the site , or when new members' profile submitted have been approved or declined by admin, or when they receive email notifications automatically from our site. After the last php programmer did OTHER work on the site, and left without any notice, these problems have just been uncovered. I don't know why the email templates suddenly stop or are being disabled from being sent now. Weird. But the emails in terms of their templates are still on my site. Just the sending is not happening.