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Speed38

macrumors 6502
Original poster
I own two groups at Groups.io and have been a member, for years, of three others Groups, most of them Apple software and device oriented.

Out of the blue, when yesterday I forwarded an article to one of the Groups I own, via Apple's Mail.app, here is the beginning of the email I got in return from mailer-daemon@icloud.com.

This is a system-generated message to inform you that your email could not
be delivered to one or more recipients. Details of the email and the error are as follows:


<icloudadmin@apple.com>: host 127.0.0.1[127.0.0.1] said: 550 5.7.1 message
rejected due to local policy; if you feel that your email was rejected in
error, please forward a copy to icloudadmin@apple.com (in reply to end of
DATA command)
Reporting-MTA: dns; outbound.ms.icloud.com


I did some research and found that you can mail them back, including the content of the email you tried to post, and ask for help. I did so yesterday, a Saturday, so I will probably have to wait until Monday or Tuesday for a reply/resolution.

I was considering moving away from my @cloud address and opening a paid account with Proton and would welcome any feedback on that decision.
 
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