Thanks I’ll give it a go. I may have found the issue but I need to test this. If I do a post using the quick post feature within BBPress then notifications seems to work fine. If I go to the WP admin bar and the select NEW -> TOPIC then emails don’t seem to be sent.
I can’t see much in the debug log for this plugin. The only line that seems relevant is this one, but I don’t think it relates to your plugin.
[30-Dec-2014 23:26:31 UTC] PHP Notice: bbp_setup_current_user was called incorrectly. The current user is being initialized without using $wp->init(). Please see Debugging in WordPress for more information. (This message was added in version 2.3.) in /home/linweb18/g/greenbankarchers.com/user/htdocs/wordpress/wp-includes/functions.php on line 3547
Weblog just contained this:
[Tue Dec 30 23:16:00 2014] [warn] (103)Software caused connection abort: mod_fcgid: ap_pass_brigade failed in handle_request function