How should block a incoming double from address

[Dachrixkross]

Hi
We are receiving some spam with a double "from address" and Fortimail can´t block all, just some of this by black ip or similar

Like this:
                 (Protected and valid domain)            (Fake sender)
from: "local-account@local-domain.com"  <mike.richardson@wst.co.za>

What´s the best way to block this issue?

Thanks for all the help!

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Chris

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[DeepKuma2]

Hi,
This is not a spam detection standard and you can't block it on the FortiMail. 

Regards,
Deepak Kumar

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Deepak Kumar
First Option General Trading LLC
Dubai
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