Thankyou all for the very helpful comments - I am now more aware of some of the features available.
I think what I was wanting to address is actually outside of the main system.? It is the reject message sent when a non subscriber tries to post a topic via email.
Example reject message:
(highlighted text should ideally be removed/changed)
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:
[email protected]
host lb01.groups.io [45.79.81.153]
SMTP error from remote mail server after end of data:
510 5.1.1 Your email address, xxxxxxxxxx.co.uk, is not subscribed to that group. To subscribe, send an email to [email protected], or visit
Reporting-MTA: dns; yyyyy.servers.prgn.misp.co.uk
Action: failed
Final-Recipient: rfc822;[email protected]
Status: 5.0.0
Remote-MTA: dns; lb01.groups.io
Diagnostic-Code: smtp; 510 5.1.1 Your email address, xxxxxxxxxxxxxxxxxx.co.uk, is not subscribed to that group. To subscribe, send an email to [email protected], or visit
