Benjamin Donnachie wrote:
> I've just written a very simple script which I use as a cronjob to keep
> a postfix access map of current lists up-to-date. Thus avoiding
> potential backscatter with the listhost domain.
A copy of the script is below. You'll probably need to edit it for your
site.
I pipe the output to /etc/postfix/mm-handler_access. With
smtpd_recipient_restrictions including "check_recipient_access
regexp:/etc/postfix/mm-handler_access", in postfix's main.cf.
Remembering to run postmap /etc/postfix/mm-handler_access after.
The access map that it generates ensures that postfix only accepts
messages for valid mailman lists and thus prevents your system from
becoming a potential source of backscatter spam when using mm-handler.
Take care,
Ben
#!/bin/bash
# Generate postfix access maps for valid mailman addresses
# By Benjamin Donnachie <[EMAIL PROTECTED]>
cat << EOF
#
# Generated `/bin/date`
#
#
# Lists to accept:
#
EOF
for domain in listhost.example.com listhost.example.org; do
echo "# ** Domain $domain"
for list in $( /usr/lib/mailman/bin/list_lists -V $domain -b ); do
cat << EOF
#
# * List $list
#
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
EOF
done
cat << EOF
#
# * Administrative aliases for domain $domain
#
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
/[EMAIL PROTECTED]/ DUNNO
#
# * If not listed above, reject
#
/$domain/ REJECT Unknown list - see http://$domain/
#
#
EOF
done
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