I have the following issue w/ my forum (2.0.17).
After the user is registered (immidiate registration), I'm getting the following email:
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
host 5817.smtp.antispamcloud.com [188.8.131.52]
SMTP error from remote mail server after end of data:
550 Maximum line length exceeded (see RFC 5322 2.1.1).
How would you approach debugging this issue? I have no idea what email is being sent from the forum that violates 1000 character rule.