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SPAM Action "warn"

raffis
Hi 

Am I right that the spam action "warn" only rewrites the Subject into "*SPAM* $Subject"?
Why not adding the header X-Spam-Flag: YES ?

I want that my postifix (amavis-new) behind the the astaro exim skips scanning mails which the astaro antispam system already detected as possible spam and move them directly to the junk folder of a user.

And for this setup I guess the header X-Spam-Flag is better to check for instead checking the subject for a *SPAM* part.


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Parents
  • 0
    And by the way modifying the Subject breaks most DKIM Signatures (most dkim signatures includes the subject), so this is actually a no-go.

    The DKIM evaluation is done by the SMTP Proxy before the subject is changed, so you're right that you will need to disable DKIM checking on your mail server if you select the "WARN" option in UTM Anti-Spam.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
Reply
  • 0
    And by the way modifying the Subject breaks most DKIM Signatures (most dkim signatures includes the subject), so this is actually a no-go.

    The DKIM evaluation is done by the SMTP Proxy before the subject is changed, so you're right that you will need to disable DKIM checking on your mail server if you select the "WARN" option in UTM Anti-Spam.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
Children
  • 0 in reply to BAlfson
    The DKIM evaluation is done by the SMTP Proxy before the subject is changed, so you're right that you will need to disable DKIM checking on your mail server if you select the "WARN" option in UTM Anti-Spam.

    Cheers - Bob



    Yeah but the whole dkim process is done by my internal systems.
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