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but remember the KISS principle ;-)
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I recently came across this problem and after searching for hours I still did not get the entire solution in one thread. I eventually resolved the problem using other information picked up from other threads within the Linux Questions site.
I thought i would make it easier to find in one place by posting my solution here.
After setting up Postfix and configuring the config files, when trying to access the server on port 25 by telnet to the localhost (127.0.0.1) we gain access to the server. If you telnet to another interface on the same machine for example 192.168.30.x on port 25 you get "Connection refused".
Edit file - /etc/postfix/main.cfChange:Edit file - /etc/postfix/master.cfFrom - #inet_interfaces = allTo - inet_interfaces = all
Change:From - #mynetworks_style = subnetTo - mynetworks_style = subnet
Change:From - mynetworks = 127.0.0.0/8To - mynetworks = 192.168.30.0/24, 127.0.0.0/8Change:Then restart the Postfix server:From - smtp inet n - n - - smtpdTo - 0.0.0.0:smtp inet n - n - - smtpd
I hope this helps.
From: Anders Johansson (andjoh_at_rydsbo.net)
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To: email@example.com Date: Tue, 6 Apr 2004 14:12:24 +0200
On Tuesday 06 April 2004 07.46, David Rankin wrote:
> Apr 6 00:21:49 Nemesis postfix/pickup: 8618118DA95: uid=0
> from=<root> Apr 6 00:21:49 Nemesis postfix/cleanup: 8618118DA95:
> Apr 6 00:21:49 Nemesis postfix/qmgr: 8618118DA95:
> from=<firstname.lastname@example.org>, size=306 (queue active)
> Apr 6 00:21:49 Nemesis postfix/smtp: connect to
> mail.3111skyline.com[184.108.40.206]: Connection refused (port 25)
> Apr 6 00:21:49 Nemesis postfix/smtp: 8618118DA95:
> to=<email@example.com>, relay=none, delay=0, status=deferred (connect
> to mail.3111skyline.com[220.127.116.11]: Connection refused)
What do you see in /var/log/mail on skyline when this happens?
> smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination
> smtpd_sasl_auth_enable = no
> smtpd_sender_restrictions = hash:/etc/postfix/access
What is in this file?
Also, can you get mail to work on other machines/other setups? In other words,
are you sure it isn't your ISP (or some other upstream firewall) filtering
port 25?-- Check the headers for your unsubscription address For additional commands send e-mail to firstname.lastname@example.org Also check the archives at http://lists.suse.com Please read the FAQs: email@example.com
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Last modified: July 07, 2013