Unfortunately not; the Message-ID seems to be the only interesting field for these. You might use it to assist with scoring?

Kevin's rules still help with the content of the messages...

8.0 KAM_FAKE_NORTON Fake Norton / McAfee / Geek Squad / Symantec / etc. Renewal Notices



On 11/10/2025 at 07:28, Scott Q. via mailop wrote:
Somehow spammers found a way to abuse these. Anyone found a reliable way to detect/block _only_ the unwanted ones ?

Sender: Google Calendar [email protected]
Date: Thu, 6 Nov 2025 14:39:11 +0000
Message-ID: [email protected]
Reply-To: DAVID DEITHER LAURENTE QUISPE [email protected] <mailto:[email protected]>

Best,
Scott


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