mkettler at EVI-INC.COM
Thu Sep 29 00:13:40 IST 2005
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Jon Miller wrote:
> I need to create a rule where if the subject has Re: or any number between the  that it is picked up as spam. How do I create the header so that it's a single entry yet works for any number from a blank  to any character?
> Does the * works and means anything?
> # 15 Subject: Re:
> header PROLO_GSPAM15 Subject =~ /Re[*]:/i
> score PROLO_GSPAM15 8
> describe PROLO_GSPAM15 Spam - custom rule set
1) * isn't a character wildcard in regex, it's a repeat-count wildcard. ie: d*
will match any number of d's in a row (including 0).
2) anytime you want to use a bracket, you must escape it with a backslash,
otherwise you're declaring a character range. i.e.: [a-z] will match any single
3) \d is a good way to match a "numeric digit" and is equivalent to [0-9]
in light of 1-3 I'd rewrite that as:
header PROLO_GSPAM15 Subject =~ /Re\[\d\]:/i
That said, I'd be very wary of assigning an 8-point score to such a rule.
You WILL get false positives, because there ARE real mail clients that do that
to messages, for example Microsoft outlook with the auto-bcc plugin.
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