XF 1.5 Email for generic Errors

That is an Apache error message, not something you can change within XF.
Hmm, thx for the quick reply. I will let my server guy know and see if he can change that.

BTW this message appeared for a user who tried to post a very long thread (a lot of text + he had more then 5 videos embed). I think I removed any limitations on post length ,but it still wont let him post (the error message pops up)