email abuse report for an email message to a friend's email

Question

I started receiving this response when sending to a friend.  The friend claims they did not hit "Spam" or "Junk" on my email so I don't understand why this is happening.  I am sending via GMail using an authenticated SES SMTP. Email to all other users go through just fine.

> This is an email abuse report for an email message with the message-id of  received from IP address  on Mon, 05 Jun 23 00:01:55 UTC.
> This is the list of the complaint emails:
> @yahoo.com

When I look at the Dashboard there are no Rejects and no Complaints.

Is there any way to revert the abuse report for a specific email address?

Answer

So, I found it under the "Suppression list" page. I could remove the email address that had a "complaint". It all works now.

But I have no idea how their email address got into the "Suppression list".

email abuse report for an email message to a friend's email

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