MyBB Community Forums

Hello,

I'm running 1.6.7 of MYBB. I know that 1.6.8 just came out recently, but I haven't upgraded yet due to a custom SEO plugin that I'm using.

In any event, I had two users email and say that they stopped receiving emails on posts that they made for about a week. They have it setup so they receive an email when a reply is made. I have tested a mail script and the PHP mail is working fine. I haven't changed servers either.

Do you know what else I can try to troubleshoot this?

Couple of questions;

1) Whether they receive email if you directly send to their mailing address, like from Their profile > Send email to this user ?
2) Have you tried switching the PHP Mail to SMTP Mail ?