I have integrated Moodle and Mahara but mainly, I am working with Moodle and and I did setup email notification as well. But for some reason teachers doesn't receive any emails. And nor does student receive any emails upon grading. However, before only teacher used to receive email but I don't know what I did and its not receiving. We have Exchange Server 2007 and I have given SMPT host the necessary IP or hostname (I tried giving both hostname and IP but didn't work).
I am not sure if we need to do extra configuration somewhere in exchange server or If I need to install postfix or sedmail server in moodle server
Like I mentioned earlier, teachers were getting email and specially those who had email id of exchange server but other teachers whoes email ID was of gmail and yahoo didn't receive any email. I even tried debugging but didn't really understand.
The screenshots are below and please do help me