I'm running a v1.9.4 site that has a main news forum on the front page. This forum is set to force all users as subscribed, just like we have for some of our course-level forums.
Emails are working for general site functions (new users, password resets, quickmail), and for all other subscribed forums. It seems like just this main forum has this issue.
When I create a new post the problem is the same if I leave it to be sent after the 30 minute edit timeout, or if I use the "Mail Now" checkbox. I've monitored our SMTP gateway and when messages are placed on the forum nothing hits it, Moodle is not sending the emails. I've enabled debugging (including email), and no errors are produced.
I've also set up a test post, used "Mail Now", and manually run the cron... This results in the following message:
Processing module function forum_cron ...0 users were sent post 173, 'Microsoft Academic Alliance Software Program'
I'm not sure what to do next, anyone have any tips or other things I can check to see if I can resolve this issue?