Hi Guys,
Are you interested in a brief guide on how to set up postgrey (anti-spam
greylisting) with postfix? I set it up today and it took me a while to
get it working as the config is slightly different from that on many of
the googled guides (many are debian/ubuntu based). The darn config file
lives in /etc/sysconfig on RH/CentOS rather than /etc/default as
mentioned in all the guides I found!
Anyway, happy to write something if you feel it would be useful (below
is a summary of my notes to give you an idea)
Regards,
Ned
-----------------------
Notes:
# Install postgrey from RPMForge:
yum install postgrey
# Configure postgrey:
Create /etc/sysconfig/postgrey with:
OPTIONS="--inet=127.0.0.1:60000 --delay=60"
# Configure postfix to use postgrey in main.cf:
smtpd_recipient_restrictions reject_unknown_recipient_domain,
permit_mynetworks,
check_policy_service inet:127.0.0.1:60000
permit
# Start the postgrey service:
/etc/init.d/postgrey restart
(check service to automatically start in runlevels 3,4,5)
# reload postfix configs
postfix reload
# Check maillog for signs of postgrey working:
# postgrey loads:
Dec 17 21:44:58 jessie postgrey[6844]: Process Backgrounded
Dec 17 21:44:58 jessie postgrey[6844]: 2007/12/17-21:44:58 postgrey
(type Net::Server::Multiplex) starting! pid(6844)
Dec 17 21:44:58 jessie postgrey[6844]: Binding to TCP port 60000 on host
127.0.0.1
Dec 17 21:44:58 jessie postgrey[6844]: Setting gid to "101 101"
Dec 17 21:44:58 jessie postgrey[6844]: Setting uid to "100"
#postgrey working:
Dec 17 21:23:49 jessie postfix/smtpd[6714]: connect from
mk-outboundfilter-4-a-1.mail.uk.tiscali.com[212.74.114.8]
Dec 17 21:23:49 jessie postfix/smtpd[6714]: NOQUEUE: reject: RCPT from
mk-outboundfilter-4-a-1.mail.uk.tiscali.com[212.74.114.8]: 450 4.2.0
<ned at example.com>: Recipient address rejected: Greylisted, see
http://postgrey.schweikert.ch/help/example.com.html;
from=<bob at example.com> to=<ned at example.com> proto=ESMTP
helo=<mk-outboundfilter-4-a-1.mail.uk.tiscali.com>
Dec 17 21:23:54 jessie postfix/smtpd[6714]: disconnect from
mk-outboundfilter-4-a-1.mail.uk.tiscali.com[212.74.114.8]
Ned Slider wrote:> Hi Guys, > > Are you interested in a brief guide on how to set up postgrey (anti-spam > greylisting) with postfix?Yes, please.> The darn config file lives in /etc/sysconfig on RH/CentOS rather than > /etc/default as mentioned in all the guides I found!And all the Debian people I know swear that nothing puts files into that directory :)> Anyway, happy to write something if you feel it would be useful (below > is a summary of my notes to give you an idea)Looks good ... I'll be back to you in a short while. Cheers, Ralph -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available URL: <http://lists.centos.org/pipermail/centos-docs/attachments/20071218/4145d857/attachment-0004.sig>
Thanks. No rush Ralph, I'm busy as heck atm but hopefully I'll find time over xmas to get it done. I guess you'll set me up a page and send me the link. Ralph Angenendt wrote:> Ned Slider wrote: >> Hi Guys, >> >> Are you interested in a brief guide on how to set up postgrey (anti-spam >> greylisting) with postfix? > > Yes, please. > >> The darn config file lives in /etc/sysconfig on RH/CentOS rather than >> /etc/default as mentioned in all the guides I found! > > And all the Debian people I know swear that nothing puts files into that > directory :) > >> Anyway, happy to write something if you feel it would be useful (below >> is a summary of my notes to give you an idea) > > Looks good ... > > I'll be back to you in a short while. > > Cheers, > > Ralph > > > ------------------------------------------------------------------------ > > _______________________________________________ > CentOS-docs mailing list > CentOS-docs at centos.org > http://lists.centos.org/mailman/listinfo/centos-docs
Hi list, Draft is up at: http://wiki.centos.org/HowTos/postgrey Please feel free to comment or correct any mistakes/typos. Maybe I'll tackle spamassassin over the holidays on my server and see if it's worth writing a guide for that :) Regards, Ned Ralph Angenendt wrote:> Ned Slider wrote: >> Hi Guys, >> >> Are you interested in a brief guide on how to set up postgrey (anti-spam >> greylisting) with postfix? > > Yes, please. > >> The darn config file lives in /etc/sysconfig on RH/CentOS rather than >> /etc/default as mentioned in all the guides I found! > > And all the Debian people I know swear that nothing puts files into that > directory :) > >> Anyway, happy to write something if you feel it would be useful (below >> is a summary of my notes to give you an idea) > > Looks good ... > > I'll be back to you in a short while. > > Cheers, > > Ralph > > > ------------------------------------------------------------------------ > > _______________________________________________ > CentOS-docs mailing list > CentOS-docs at centos.org > http://lists.centos.org/mailman/listinfo/centos-docs
Ned Slider wrote:> Hi Guys, > > Are you interested in a brief guide on how to set up postgrey (anti-spam > greylisting) with postfix? I set it up today and it took me a while to > get it working as the config is slightly different from that on many of > the googled guides (many are debian/ubuntu based). The darn config file > lives in /etc/sysconfig on RH/CentOS rather than /etc/default as > mentioned in all the guides I found!quick question here - isnt it actually better to just use postgrey over a named socket rather than over a network socket ? -- Karanbir Singh : http://www.karan.org/ : 2522219 at icq
On 12/17/07, Ned Slider <nedslider at f2s.com> wrote:> Hi Guys,... Could we add the following image: http://wiki.centos.org/HowTos/postgrey?action=AttachFile&do=get&target=postgrey-en.png I found the article very clear and easy to read. I would like to thank you with this image, if it helps of course. If some modification is needed, tell me please, I will be glad to fix it. Cheers, al.