http://xenforo.com/community/search/2808410/?q=The server did not respond in time&o=date&c[title_only]=1 [if that expires, use this]I'm having a common error message.
What happens if you try another mail server per this post.I would think so too but all that shows is the "The server didn't respond in time" overlay in the forums, even though the posts are being submitted/edited. The web server isn't showing any issue - and honestly I wouldn't think it would since the posts are being submitted/edited.
I'm not really sure, but it's worth a shot?Would it matter if I already have email disabled in the config file?
Xenforo is excellent on Resources.Setup SMTP and still no luck. It does seem like my CPU usage at the webhost is running really high. I'll investigate there. I'm really hoping xenforo isn't a resource hog like many in that link you offered are complaining about...
I only had an invite add-on installed but I've since disabled it. Not quite sure what to check for in the core files. I've ran the 'File Health Check' and it comes back happy.Have you checked all your core XF files? None of them have become corrupt or been changed in any way?
No add-ons installed (or removed/upgraded)?
We got hit by a group of spambots but that was weeks ago and traffic immediately went back down to normal after I banned them all and reset the QA security questions. Since than I only show about 10-20 users online at any given time.Have you seen a jump in the number of online users?
Our vB forum hit a Tuesday several months ago where it just quit responding. Queries were backed way up. Wasn't sure what it was, but Wednesday was back to normal. Next Tuesday? Same thing! Turns out that the Baidu search bots were slamming our forum but for some reason only once a week. Blocked in the firewall!