[@matoca Participant 11 years, 1 month ago]

I finally found the problem with this. In short, an email notification containing a topic that contained spam was sent to the administrators. This triggered Bluehost to lock down my emails and put them in a spam folder, that’s why we weren’t getting them.

It took over a week to actually get a ticket generated by a tech support person. Then Bluehost sent me a very terse email with their spam policy. I was in violation of their rules, sending out spam, and that if I did this again, I would lose my account. They unblocked my emails and they have been working again up until last week. The plugin that sends these forum notifications is called bbPress Notify.

About a week ago the notifications were being sent but the content was missing. After a lot of troubleshooting I discovered that the bbPress Notify plugin had not been attended to by the developer for a long time. I uninstalled it and installed a plugin called bbPress Notify (No Spam). It basically does the same thing but with the addition of not sending notifications of spam topics or replies.

This worked immediately. This plug is being kept up to date and the developer has a paid addon that will also allow users to discontinue the notification emails if they wish.

Problem solved.
thank you for your help!
Matoca