Re: improvements on recipe solicted

On 6 June 1998, mark david mcCreary <mdm(_at_)internet-tools(_dot_)com> wrote:
> I would like to improve the following recipe
>
>
> :0 hw
> * ^Subject:.*unsubscribe \/.*
> {
>    LOCAL=$MATCH
>    :0
>    * LOCAL ?? (_dot_)*(_at_)\/.*
>    {
>       SENDER=$LOCAL
>    }
> }
>
>
> This checks to see if the Subject line is attempting to unsubscribe
> some email address, presumably a different email address than in the
> from line.  It puts the email address in the variable SENDER, where it
> is then used in SENDMAIL -f $SENDER.
>
> Assuming the input is
>
>       Subject: unsubscribe joe(_at_)aol(_dot_)com
>
> this works just fine.
>
> If they get fancy, and try to put in two email addresses, the whole
> string after unsubscribe gets put in SENDER.
>
>       Subject: unsubscribe joe(_at_)aol(_dot_)com 
> sam(_at_)compuserve(_dot_)com
>
> And SENDER = joe(_at_)aol(_dot_)com sam(_at_)compuserve(_dot_)com, which then 
> bombs
> SENDMAIL.
>
> I would be happy just picking up the first email address, and ignoring
> anything else.
[...]

    You might try something like

        :0 h
        * ^Subject:.*unsubscribe[       ]+\/[^  ]+([    ]|$)
        { SENDER=$MATCH }

(the whitespace in the brackets consists of a space and a tab).

    Regards,

    Liviu

-- 
Dr. Liviu Daia                   e-mail:   daia(_at_)stoilow(_dot_)imar(_dot_)ro
Institute of Mathematics         web page: http://www.imar.ro/~daia
of the Romanian Academy          PGP key:  finger 
daia(_at_)stoilow(_dot_)imar(_dot_)ro