[courier-users] maildropfilter foreach

hello to everyone,

i try to implement a simple autoresponder as many of you already did or
use. i have a global maildroprc which redirects spam to other folder and
local .mailfilter for user filters.

now i want to do the following, as an example a file called "aliases"
has email addresses of one user in it like follows:

info@mydomain.org
sales@mydomain.org
office@mydomain.org

i now would like to see if the receiving email is addressed to one of
these email addresses to exclude mass mail senders. to check one email
address i did that with the hasaddr() function. how is it possible to
iterate through a file and check it with hasaddr()? i don't understand
the foreach documentation in the manual, i think. is it just for regexp
matches of the email headers?

in a shellscript i would do that as follows:

addresses=`cat aliases`
for address in ${addresses[@]}
do
if [ hasaddr($address) ]
then
found=1
fi
done

but i'm really to stupid to do that in maildropfilters language/syntax

thanks in advance for any help
jimmy

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