UBB.threads PHP Forum Software Community Forums UBB.threads Version 7/8 Support Users not receiving email 'PM' alerts

Bumping this up!

We're suddenly having the same issue on our Forums!!

I have not changed any settings at all and all of a sudden 2 days ago no one has been receiving any new PM's, watched Topics, and our Mods are not receiving Post Notifications.

We're running v7.2.

Can anyone help me troubleshoot this? Pretty Please?

Cara