[Mailman-Users] Spam / Email Spoofing Problem (SPF check possible?)

[Grant Taylor]

On 4/5/19 11:59 AM, Valentin Schwarze via Mailman-Users wrote:
> Are there any settings that we as administrators of the list could 
> change to end that behavior? For example, is it possible in any way, 
> that Mailman only accepts emails that passed a SPF check? Or any other 
> option to prevent email with forged sender adresses to be distributed 
> through the mailman list?

As Mark and Carl have stated, you are better off implementing email 
hygiene in your MTA and only passing clean messages to Mailman.

Note:  SPF by itself won't do anything to protect against From: header 
spoofing.  I would suggest that you also look into DKIM and particularly 
DMARC filtering.



-- 
Grant. . . .
unix || die

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