1. It is reproducible.
2. a. Install postfix, mailman packages
mail to [email protected] should be delivered to [email protected]
(because default postfix recipient_delimiter="+")
b. Configure mailman according to instructions in
/usr/lib/mailman/bin/postfix-to-mailman.py
i used a subdomain -- lists.example.com
create a test list using a newlist.
mail to [email protected] should be delivered to your list.
mail to [email protected] should be delivered to the list
admin.
c. change postfix recipient_delimiter to "-".
(add recipient_delimiter="-" to /etc/postfix/main.cf)
restart postfix
mail to [email protected] should be delivered to
[email protected]
mail to [email protected] will be erroneously sent to the
test list. postfix sees the recipient delimiter and strips it off
before passing it to the postfix-to-mailman.py script.
d. apply above patch.
postfix will now pass the pre-processed email address (no
recipient_delimiter stripping) to postfix-to-mailman.py.
mail to [email protected] will now correctly go to
the list admin.
--
postfix-to-mailman.py is broken when postfix recipient_delimiter="-"
https://bugs.launchpad.net/bugs/529349
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