While configuring some stuff having to do with the mail server, i started seeing where it was sending a lot of mail to bogus addresses. As such, i have removed the option to be notified of new comments when one leaves a comment on an article/post.
Removing comment notifications is not something i like at all, however it is more important that the mail server IP doesn’t get blacklisted, as it already has in one case which i’m trying to resolve now.
Although comment notifications are no longer possible via email, you can still subscribe to comment feeds if you want to be notified when someone leaves a comment. See the Subscribe page for more info.