I’m guessing a calendar event was created with an email reminder. The email address not valid.
I have deleted what I beleive to the the offending repeating event, “Stephen-Kevin”
But I’m still getting five to ten error emails per day.
How to stop this?
an example error message:
[details anonymized]
s@xyz DOMAIN_NOT_RESOLVED, ERROR_CODE :DOMAIN_NOT_RESOLVED
Reporting-MTA: dns; mx.zohomail.com
Arrival-Date: Sun, 24 Nov 2019 20:02:05 -0800 (PST)
Original-Recipient: rfc822; s@xyz
Final-Recipient: rfc822; s@xyz
Status: 0
Action: failed
Last-Attempt-Date: 29 Nov 2019 03:47:45 GMT
Diagnostic-Code: s@zyx DOMAIN_NOT_RESOLVED, ERROR_CODE :DOMAIN_NOT_RESOLVED
Received:from macbook-pro.lan (42-000-000-000.static.imsbiz.com [42.000.000.000]) by mx.zohomail.com
with SMTPS id 1574654525.81314748; Sun, 24 Nov 2019 20:02:05 -0800 (PST)
Message-ID:<241F2CE8-B22A-43A4-A733-9A900B1153E3@abc>
Date:Sun, 24 Nov 2019 20:02:05 -0800 (PST)
From:"stephen, sourcing.sc" <s@abc>
To:s@xyz
Subject:Alert - Stephen-Kevin
Content-Type:text/html;
charset=us-ascii