Emails with incorrect To: field

Marcin M

• October 24, 2025 22:27

I get a lot of emails with headers that are incorrect. 

Spammers put Envelope-to: my@email.pl 

But in To : field is something else. 

How to block such emails

Example : 

 

Envelope-to: my@email.pl
From: "PanQueen" <ecjamhh@comaxe.pro>
To: <testy@metro.waw.pl>

• 

  quietFinn

  • October 25, 2025 15:18

  Envelope-to: and To: don't have to be the same, if you block emails where they are not the same you may block valid emails.

   

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