procmail question

[Parker Morse]

On Thursday, January 9, 2003, at 07:44  AM, David Relson wrote:
> At 06:13 AM 1/9/03, Tom Allison wrote:
>
>> Not sure why you use
>> * 1^0 From.bogofilter-bugs
>> you could use
>> * ^From.bogofilter-bugs
>> just as well ...  But it's early yet.
>
> I'm not sure either.  procmail is not my core competency.  I must have 
> copied the line from somewhere.  As it's working fine, I not inclined to 
> change it.

The first version is for procmail's scoring machinery. I think that (a) it'
s unnecessary here, and (b)...well, I think the regexps in both might be 
broken.

If I'm reading it correctly, the first option will match if any line in 
the header contains the string "From", then a single wildcard character, 
then the string "bogofilter-bugs", and assign that a positive score, which 
then means the action will be performed (in this case, procmail will lock 
the mail file "bogofilter-bugs", file a copy of the message to it, unlock 
the file, and send the message along to the rest of the rc.)

The second will match the same string ("From", a single character, 
"bogofilter-bugs") but only when it comes at the beginning of a line (that'
s what the ^ does.) The match is binary - either it finds it, and performs 
the action, or it doesn't, and doesn't.

If you're trying to match mail coming from an address starting with 
"bogofilter-bugs" I would suggest the following:

:0c:
* ^From:.*bogofilter-bugs
bogofilter-bugs

This matches "From:" at the beginning of a line, then any number of 
characters between the : and "bogofilter-bugs" somewhere else on the line.

I don't know if this solves your problem, though. :-) Just part of what I'
ve managed to absorb in a year of letting the procmail list wash over my 
head.

pjm