moderated Re: Bounced emails
The essence of the error is contained in these sections of the message:
This part is the text explanation:
Content-type: text/plain; charset=us-ascii
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 lb02.groups.io [220.127.116.11]
SMTP error from remote mail server after RCPT TO:<firstname.lastname@example.org>:
500 Invalid request
This part is the error message (delivery-status):
Reporting-MTA: dns; se3-lax1.servconfig.com
Remote-MTA: dns; lb02.groups.io
Diagnostic-Code: smtp; 500 Invalid request
What it is saying is that server lb02.groups.io (Remote-MTA) rejected the message for email@example.com (Final-Recipient) with error "invalid request".
Since that appears to be a valid email address, this should be reported to support <at> groups.io so Mark can investigate. He's very good at it, by the way.