On Mon, 3 Oct 2005, Joerg Sommer wrote:
>
> mail2news:
> condition = ${lookup{$local_part}lsearch{/etc/exim4/mail2news}}
> driver = redirect
> data = "|/usr/lib/news/bin/mailpost -a usenet@??? \
> ${extract {1}{,}{${lookup{$local_part}lsearch{/etc/exim4/mail2news}}}}"
> pipe_transport = address_pipe
> errors_to = postmaster
> headers_add = "Subject: ${sg {$rh_subject:} \
> {\\\\[${extract {2}{,}{${lookup{$local_part}lsearch{/etc/exim4/mail2news}}}}\\\\] }{}}\n"
> headers_remove = newsgroups:distribution:x-spam-report:received:errors-to:subject
>
> Currently all my addresses are named ml- or nl-, which makes the check
> for mail2news_admin simple. But if I would not use such prefixes, how
> often becomes the ${lookup evaluated? Does exim cache the result?
Yes. However you can make the router much more readable as follows:
mail2news:
local_parts = lsearch;/etc/exim4/mail2news
driver = redirect
data = "|/usr/lib/news/bin/mailpost -a usenet@??? \
${extract {1}{,} {$local_part_data} }"
pipe_transport = address_pipe
errors_to = postmaster
headers_add = Subject: ${sg {$rh_subject:} \
{\\\[${extract {2}{,} ($local_part_data} }\\\] }{} }
headers_remove = newsgroups:distribution:x-spam-report:received:errors-to:subject
Always check that the condition you are writing isn't supported directly
by a standard condition: you will avoid a lot of ugly string expansions.
Note that headers_add doesn't need a trailing \n or quotes.
I think it would be better to do the Subject: mangling in the mailpost
program - perhaps make the subject tag a command-line argument?
Tony.
--
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http://dotat.at/ ${sg{\N${sg{\
N\}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}\
\N}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}
