Hello,
at least on my system the emails generated and send by the forum get filtered out due to anti-spam rules.
Here is an excerpt from the log:
Sep 9 10:06:29 bart qmail-smtpd: tcpserver: ok 19173 <removed>:::ffff:10.10.8.24:25 :::ffff:45.55.151.63::36782
Sep 9 10:06:29 bart qmail-smtpd: 19173 No MX/A record for mmmforum.localdomain (claimed sender: apache@mmmforum.localdomain) !
Sep 9 10:06:29 bart qmail-smtpd: 19173 Mail recipient would have been <removed>
Sep 9 10:06:34 bart qmail-smtpd: tcpserver: end 19173 status 0
As you can see the sender address is set to apache@mmmforum.localdomain which is obviously not valid.
At least my system (and probably others) therefore rejects the email.
Please set the sender to a valid address (something like noreply@forum.mrmoneymustache.com). Thanks!
Kind regards,
Lordy