Have the automated AF response emails stopped?

I don’t seem to be alerted anymore by email when a topic I have commented on is updated. Is this a change to AF or my personal setting, or just my email account playing up?

The issue is on our end. There was a software update which caused some errors in posting new forum topics so that module has been disabled until we figure out what the cause is. I hope to have it up and running this week and will post back when it’s resolved.