This happens when I submit a comment in the comment system. Doesn't seem to matter if I'm authenticated or not.

I've tried this on CentOS 7.0 and SUSE Linux Enterprise 11 SP3, and both of them are generating this message for some reason.  The output was generated with Oxygen 17.

I've got other webhelp with feedback that works OK (in fact, I can use the same output set on another server and it works just fine).  I've got mysql installed and the php mysql extension is present as well.  I've set up the database fine, and I can see the comments in the UI, but the e-mails being sent only contain this error.

I'm not even sure where to start to troubleshoot this - anyone have any ideas?

Thanks,

Jim