Difference between revisions of "Greylisting"
From Linuxintro
imported>ThorstenStaerk (New page: There are different tools for greylisting. = Postgrey = Postgrey is greyListing software for the postfix MTA. == How to get it == Download postgrey from http://postgrey....) |
imported>ThorstenStaerk |
||
| Line 10: | Line 10: | ||
== How to set it up == | == How to set it up == | ||
| − | * | + | * Extract your postgrey [[package]], e.g.: |
| + | tar xvzf postgrey-1.32.tar.gz | ||
* Copy postgrey_whitelist_clients to /etc/postfix/ | * Copy postgrey_whitelist_clients to /etc/postfix/ | ||
* Copy postgrey_whitelist_recipients to /etc/postfix/ | * Copy postgrey_whitelist_recipients to /etc/postfix/ | ||
Revision as of 10:12, 12 October 2008
There are different tools for greylisting.
Postgrey
Postgrey is greyListing software for the postfix MTA.
How to get it
Download postgrey from http://postgrey.schweikert.ch/
How to set it up
- Extract your postgrey package, e.g.:
tar xvzf postgrey-1.32.tar.gz
- Copy postgrey_whitelist_clients to /etc/postfix/
- Copy postgrey_whitelist_recipients to /etc/postfix/
- Add a user named postgrey:
useradd -m postgrey
- start postgrey
./postgrey --inet 127.0.0.1:60000
- make sure postgrey is listening on port 60000:
$ nmap localhost -p59998-60002 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2007-08-10 07:44 CEST Interesting ports on lvps87-230-12-146.dedicated.hosteurope.de (127.0.0.1): PORT STATE SERVICE 59998/tcp closed unknown 59999/tcp closed unknown 60000/tcp open unknown 60001/tcp closed unknown 60002/tcp closed unknown Nmap finished: 1 IP address (1 host up) scanned in 0.049 seconds
- Make sure there is a line like this in /etc/postfix/main.cf:
smtpd_recipient_restrictions = permit_mynetworks,
permit_sasl_authenticated,
reject_unauth_destination,
check_policy_service inet:127.0.0.1:60000
- restart postfix
/etc/init.d/postfix restart
See also
http://www.debuntu.org/postfix-and-postgrey-a-proactive-approach-to-spam-filtering
