Simple Machines Community Forum

SMF Support => SMF 2.0.x Support => Topic started by: MoonCat on August 01, 2020, 08:34:13 PM

Title: Mail rejected: "550 Maximum line length exceeded" error
Post by: MoonCat on August 01, 2020, 08:34:13 PM

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 []
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.

Thank You!