On Wed, Aug 5, 2015 at 3:15 AM, Jayson Smith <jayb...@bluegrasspals.com> wrote:
>
> A few months ago I did some Googling and found a project called
> Mailman-Milter which claims to reject unwanted list mail i.e., nonmember
> postings at the SMTP level. I would love to use this, but there's virtually
> no documentation and I've never been able to get it working. Has anyone else
> had any better luck, or do you know of any other solutions? I'm using
> Sendmail, by the way.
I'm not exactly sure how to do it in Sendmail (been a long time since
I've used that) but in Postfix it can be done by setting up a custom
master.cf service(s) and restriction class(es).
/etc/postfix/master.cf:
# Mailman list member checks
127.0.0.1:27015 inet n n n - 1 spawn
user=mailman
argv=/usr/local/lib/mailman/scripts/check_subscriber mylist
127.0.0.1:27016 inet n n n - 1 spawn
user=mailman
argv=/usr/local/lib/mailman/scripts/check_subscriber mylist2
You can get a copy of the check_subscriber script here:
http://paste.debian.net/plainh/95fd6c08
You then need to setup a restriction class that matches a mailinglist
posting address and then hooks into the master.cf service on
127.0.0.1:27015 listed above. The restriction class matches just the
mailinglist posting address (not the -bounce, -owner, -subscribe,
etc).
/etc/postfix/check_recipients:
myl...@mydomain.tld mailman_subscribers_mylist
myli...@mydomain.tld mailman_subscribers_mylist2
/etc/postfix/main.cf
smtpd_client_restrictions=
permit_mynetworks,
......
check_recipient_access hash:/etc/postfix/check_recipients,
permit,
# declare our custom restriction classes
smtpd_restriction_classes =
mailman_subscribers_mylist
mailman_subscribers_mylist2
# define our custom restriction class for mylist
mailman_subscribers_mylist =
check_sender_access tcp:127.0.0.1:27015,
permit
# define our custom restriction class for mylist2
mailman_subscribers_mylist2 =
check_sender_access tcp:127.0.0.1:27016,
permit
I would be interested in hearing/learning about how to make that work
in sendmail if you get the oppty to shoehorn something like this it
into your setup.
-Jim P.
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