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Expression filter: Block "[SPAM ?]" in mail's subject

DiePlage
Hi!

Our upstream Mailserver (POP3) does some spam-filtering. Mails considered SPAM are tagged with [SPAM ?] in the subject-line.
For some reason our ASG frequently fails to detect this spam. So it would be nice just to filter for the expression "[SPAM ?]" in the subject.
Unfortunately I can't seem to get it right. I suppose I need to somehow escape the parenthesis "[]" as well as the question-mark "?"?

I would be very glad if someone could give me a hint here...

Thanx!


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  • 0
    The expression filter uses regular expressions. In order to match "[SPAM ?]" you have to enter "[SPAM \?]".
  • 0 in reply to frickler
    Frickler, this is a little confusing.  I know there are places in V7.3+ where regular expressions no longer work.  In which places do they still work other than the 'Anti-Spam' 'Expression filter'?

    Thanks - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0 in reply to BAlfson
    There are also expressions for mail-addresses which uses format local@domain, *@domain or local@*. Which else expressions do you mean?
  • 0 in reply to frickler
    In the HTTP Proxy, I don't think regular expressions work anymore; "plain text" works just fine.  I don't think the KnowledgBase documentation has kept up with these changes.

    Like I said, I am confused about where regular expressions are used in V7.3+.  From your response, I guess the only place regular expressions are still used is in the 'Expression filter' - correct?

    Thanks - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0 in reply to BAlfson
    In the HTTP Proxy, I don't think regular expressions work anymore; "plain text" works just fine.  


    You can still use regular expressions in the HTTP-Proxy. There were no changes.

    Cheers,

    Sven.
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