On Mon, 26 May 1997, Stan Ryckman wrote:
--
Cute. But if you're willing to assume that email addresses have an "@"
in them and are well-behaved, wouldn't this work to set $MATCH with
no external process?:
* ^From:.*[ <]\/[^ <]*(_at_)[^ >]*
(There should be a space and tab in each of the []'s, but this stupid
mailer won't put them in; I'm not on the shell machine at the moment.)
The whitespaces look fine from my end. It never occurred to me that I
could match the 'From:' without an external process (no sarcastic
remarks, please ;).
[more snip]
This can and will break with elaborate parenthesized comments in the
From: header -- RFC822 permits quite complicated expressions, although
in practice you rarely see anything other than the following three
variants:
From: address(_at_)host(_dot_)domain(_dot_)com
From: address(_at_)host(_dot_)domain(_dot_)com (I am the Walrus)
From: The Walrus <address(_at_)host(_dot_)domain(_dot_)com>
Your sed script is more "rugged" than my $MATCH; mine won't work on
local users (no "@" in email address, typically) or on some
of the exceptions yours will catch such as
From: "IAm(_at_)KoolDude" <address(_at_)whatever(_dot_)com>
The local users on the list have their full address in setup, so that
shouldn't be a problem. I'll chastise anyone with an extra @ in the
'From:' field.
But can't formail do it "right" anyway? Make a copy of the
header, then strip out all reply headerfields except "From:", and
then generate FROM=`formail...` from the remainder (there will then
be nothing left *but* "From:" for formail to "reply" to)?
(Left as an exercise to the reader; not sure if it can be done
in one formail call; I'd probably end up using two :)
The match is not for a reply, but to compare the submitter's email addy
against the memberlist and if they are on the no-cc list, don't send a cc.
Can you think of a way to just use formail without sed? I can't get it to
ignore everything in the 'From:' field except the email addy. It's a lot
simpler just using the -r flag, but that won't work with a bounced message.
Regards,
Dave/Webmaster
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