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

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 frickler over 16 years ago

The expression filter uses regular expressions. In order to match "[SPAM ?]" you have to enter "[SPAM \?]".
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0 BAlfson over 16 years ago 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

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0 frickler over 16 years ago 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?
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0 BAlfson over 16 years ago 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

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0 svens over 16 years ago 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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0 BAlfson over 16 years ago in reply to svens

Sven, Do you mean that both "plain text" and regular expressions now work, or that "plain text" expressions have always worked?

I was surprised to see that one of my clients was successfully using expressions like "www.somedomain.com" - I don't think that worked in V6 and before, but I no longer have any V6 installations running, so I can't confirm that.

Thanks - Bob

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0 BAlfson over 16 years ago in reply to svens

Sven, Do you mean that both "plain text" and regular expressions now work, or that "plain text" expressions have always worked?

I was surprised to see that one of my clients was successfully using expressions like "www.somedomain.com" - I don't think that worked in V6 and before, but I no longer have any V6 installations running, so I can't confirm that.

Thanks - Bob

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Sophos Certified Engineer - XG
Gold Solution Partner since 2005

MediaSoft, Inc. USA
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