Rules multiple conditions
mark at msapiro.net
Mon Mar 17 04:29:21 GMT 2014
> However, I'd like to exclude a particular address (one for now, so hoping
> its easy).
> FromOrTo: *@domain.com or Not From: user at domain.com
> How could that work? (I assume the 'Not') won't work in the above line.
> What is the correct rule?
First of all, 'or' is not allowed in "two condition" rules. Only 'and'
is allowed which is what you want anyway.
And yes, 'Not' doesn't work, but you can do this using perl regular
expressions with something like
FromOrTo: /\@domain\.com$/ and From: /^(?!user\@domain\.com$)/
Note that if the second condition is going to be a perl /.../ regexp,
the first must be also. The second condition uses negative lookahead.
(?!xxx) matches if and only if the current position is not followed by
'xxx'. In this case we match the beginning of the string, not followed
by exactly user at domain.com. The $ inside the lookahead matches the end
of string and it must be inside because the lookahead doesn't advance
the string. Also the @ and . are escaped so they don't have special meaning.
Even simpler, you can use perl's '!' not operator as in
FromOrTo: /\@domain\.com$/ and From: !/^user\@domain\.com$/
Here again, for this to work, the first condition must also be a perl
Mark Sapiro <mark at msapiro.net> The highway is for gamblers,
San Francisco Bay Area, California better use your sense - B. Dylan
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