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

Grant Taylor gtaylor at tnetconsulting.net
Fri Apr 5 23:35:02 EDT 2019

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

-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 4008 bytes
Desc: S/MIME Cryptographic Signature
URL: <http://mail.python.org/pipermail/mailman-users/attachments/20190405/ea29e7b2/attachment.bin>

More information about the Mailman-Users mailing list