Re: gateway between the world and an internal mailserver

6 msg	Temporary blacklisting of hosts that send email...
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3 msg	How to make postfix log complete 'From' address?
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2 msg	Whether to set masquerade_classes
3 msg	Transport map? or.. sending mail somewhere othe...
3 msg	Large scale Postfix/Cyrus email system for 100,...
4 msg	Collecting spam via RBLs?
4 msg	queue not moving fast
1 msg	RE: What is a Postfix policy server? - Thanks

gateway between the world and an internal mails...
\ Folkert van Heusden (23 Oct 2007)
. \ Jan P. Kessler (23 Oct 2007)
. . \ Folkert van Heusden (23 Oct 2007)
. . . \ Victor Duchovni (23 Oct 2007)

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5 msg	Postfix + CyrusSASL on Centos
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4 msg	'Recipient address rejected: Policy' - What Pol...
7 msg	Postfix and RDNS
1 msg	LDAP and mail expansion while sending it.

Subject:	Re: gateway between the world and an internal mailserver
Group:	Postfix-users
From:	Victor Duchovni
Date:	23 Oct 2007

On Tue, Oct 23, 2007 at 02:53:06PM +0200, Folkert van Heusden wrote:

> > First change this:
> > > smtpd_sender_restrictions = reject_unknown_sender_domain,
> > > permit_mynetworks,
> >
> > to at least this:
> > smtpd_recipient_restrictions = reject_unknown_sender_domain,
> > permit_mynetworks,
> > reject_unauth_destination
>
> Ah yes, that solved it!

No. That did not change anything.

http://www.postfix.org/DEBUG_README.html#mail

Post unmunged logs of the problem you saw. Is your MTA behind a NAT
firewall? Do all external clients appear to be in 192.168.xxx.yyy? If
so you must not include those addresses in mynetworks. Better yet,
don't source NAT your inbound traffic.

--
Viktor.

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