Trying to fix this problem by mailing to firstname.lastname@example.org but still get the same result:
Is there some other way to fix this problem? We used to send emails to @aon.net addresses without any problem.
|The response from the remote server was: |
554 5.7.1 spam detected (CF-H)
Reporting-MTA: dns; googlemail.comReceived-From-MTA: dns; email@example.comArrival-Date: Thu, 04 Aug 2022 00:54:11 -0700 (PDT)X-Original-Message-ID: <firstname.lastname@example.org>Final-Recipient: rfc822; email@example.comAction: failedStatus: 5.7.1Remote-MTA: dns; smx01.a1.net. (188.8.131.52, the server for the domain a1.net.)Diagnostic-Code: smtp; 554 5.7.1 spam detected (CF-H)Last-Attempt-Date: Thu, 04 Aug 2022 00:54:15 -0700 (PDT)