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Thread: How to block mail if Return-Path: and From: are not same

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  1. #1
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    Question How to block mail if Return-Path: and From: are not same

    to avoid spam i want block mail for which Return-Path: and From: are not same.how can i do that?

    because we are getting spam mail for our our users with sent address of our domain but with different Return-Path:
    so i want block such kind of mails....

    another is there any way to block mail which having perticular word in there subject or body ...for all users.
    for example i want all mail which containing word "******" in there subject or body part for my all users.

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  3. #3
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    hi UX,
    As per your suggested link i am going to download script from Perl | package FromNotReturnPath; us - Ivan Korotkov - 0m9CYxzV - Pastebin.com
    as there is no plugin folder in /spamassassin so i am going to create it , and will save this script as FromNotReturnPath.pm then i will add following lines in to /opt/zimbra/conf/spamassassin/newpre.pre
    loadplugin FromNotReturnPath plugins/FromNotReturnPath.pm
    header FROM_NOT_RETURN_PATH eval:check_for_from_not_return_path()
    describe FROM_NOT_RETURN_PATH From: does not match Return-path:
    then i will do following changes in salocal.cf
    header __FROM_MYDOMAIN From =~ /\@MYDOMAIN\.com/i
    meta FAKE_MYDOMAIN_ANNOUNCE (__FROM_MYDOMAIN && FROM_NOT_RETURN_PATH)
    describe FAKE_MYDOMAIN_ANNOUNCE Fake mail from MYDOMAIN account management

    score FAKE_MYDOMAIN_ANNOUNCE 40.0

    Plz correct me if i am wrong anywhere..

    BUT Ivan in that forum saying-
    I'd recommend using it in conjunction with spamming domain (because, technically, return-path does not always equal From even in legitimate e-mail; maillists are counter-example).

    So it means this rules will apply to all mails which are coming to my mail server and there Return-path and From address are not same...if this is right then as per him it will create problem incase of mails are from known mailing-lists

    So is it possible that this rule will apply to only for my domain only, i mean if the mail have from-path of my domain and not having return-path of my domain then and then only it will be apply.

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