Block spoofing emails

Vijay Kumar Gajula
Vijay Kumar Gajula used Ask the Experts™
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Can any one let me know how to block spoofing emails in Postfix. I am getting junk from my own domain with non existing sender...
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Shaun VermaakTechnical Specialist
Awarded 2017
Distinguished Expert 2018

Commented:
I have not used Postfix but I see they have an SPF plugin, have you tried it?
Information Security Officer
Commented:
Apart from SPF, Set up Domain Keys Identified Mail on your own domain. That will digitally sign legitimate outgoing from your domain. More and more email providers are rejecting or flagging spoofed email where legit email is identified with a Domain Key signature.
Vijay Kumar Gajula

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Commented:
Thanks

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