[samsharon2]

I had bbpress forums set up and working properly on my website until about 2 months ago when emails stopped being sent out with new posts. Now whenever someone posts something, my users do not get an email about it. No idea what changed or how to fix it. Any ideas?

[Robin W]

so is this topics/forums they have subscribed to or are you using something else to advise of new items
Is this just forum mail ? try installing

https://wordpress.org/plugins/check-email/ and use it to test and switch on logging

That should tell you if it is your site not sending, or issues once the email has left your site