Anti-phishing using FROM text field information?

Robert Foreman rforeman at
Thu Aug 20 14:33:37 UTC 2020

I am trying to describe an anti-phishing technique with an official VALID_LIST, without using AI or statistical analysis.  I don’t know why this hasn’t been implemented as an option for smaller organizations.

* Define VALID_LIST[1]:  "CEO Smith" <noreply at>
* Define VALID_LIST[2]:  "CEO Smith" <ceo_smith at>

Examine the mail header FROM.
* Define VALID_LIST[1]:  "CEO Smith" <noreply at>
* Define VALID_LIST[2]:  "CEO Smith" <ceo_smith at>

If a FROM “Name” is found in VALID_LIST[any] and does NOT match any line in VALID_LIST, then DENY.

I should not need to define invalid email addresses for “CEO Smith”.
* Example Invalid:  "CEO Smith" <anything.else at>

Is this implemented anywhere?  Am I completely wrong that this pseudocode example will not help stop phishing messages attempting to use the FROM field to impersonate people’s names?
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