> > I have tried the following in a MIME ACL but the $1
> numerical variable
> > does contain anything:
> >
> > # Discard e-mail with graphic file attachment.
> > discard condition = ${if match
> > {${lc:$mime_filename}} {[.] *(gif|jpg|jpeg|png|bmp)\$}}
> > !sender_domains = +ok_domains
> > logwrite = External e-mail from
> > '$sender_address' with invalid attached file type ($1)
> '$mime_filename'
> > - discard!
> >
> >
> > Searched the current on-line documentation and the Wiki but
> can't find
> > an example for what I am after.
> >
> > Not sure if I want to do is possible.
>
> The value of $1 is not preserved outside an individual string
> expansion.
> However, there is no reason why you can't repeat the regex in
> an ${sg expansion to pick out the file type - though as it is
> in $mime_filename already I'm not sure why you want to log it twice.
Philip, thanks for your quick reply.
Was numerical variables not being available outside an individual string
expansion a design decision in Exim as in Perl I am used to have
numerical variables available for later use?
Have you ever been asked to modify this in Exim so that these variables
continue to exist after a string expansion?
Thanks
Paul McIlfatrick
