The images you posted aren't visible. They all look like this:
It's probably because the images require moderator approval. That might take some time, from a few hours to a day or more. Alternatively, you could upload the images to a file sharing site and post links to them here, or post text instead of images.
Reporting-MTA: dns; resqmta-po-05v.sys.comcast.net [188.8.131.52]
Received-From-MTA: dns; resomta-po-07v.sys.comcast.net [184.108.40.206]
Arrival-Date: Wed, 24 Feb 2021 18:32:15 +0000
Final-recipient: rfc822; email@example.com
Diagnostic-Code: smtp; 550 Unable to add firstname.lastname@example.org because host 220.127.116.11 is listed on bl.spamcop.net
Last-attempt-Date: Wed, 24 Feb 2021 18:32:15 +0000