[aklug] Re: Postfix and acs

From: Christopher Brown <cbrown@woods.net>
Date: Sat Apr 07 2012 - 12:29:46 AKDT

You do not need SMTP auth, the ACS servers will relay for ACS IP space.

You do however need to supply a "valid" FROM.

1) The FROM must be a valid _address_ in a domain that exists.

2) If the domain in the FROM is a ACS owned/run domain, the system will
perform a user lookup to verify that the username exists.

FROM: <root>, internally rewritten to FROM: <root@orca.mmc> fails #1

On 4/7/12 11:49 AM, Kevin Miller wrote:
> I'm trying to configure my linux box (openSUSE 11.4) running postfix to
> relay mail through smtp.acsalaska.net (acsalaska.net being my ISP of
> course).
>
> I googled around and followed some directions on the web, changing the
> first line below to yes (was set to no) and added the 2nd two lines.
>
> smtp_sasl_auth_enable = yes
> smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
> smtp_sasl_security_options =
>
> In /etc/postfix/sasl_passwd I have this entry:
> acsalaska.net USER:PASSWORD
> (where USER:PASSWORD are my account credentials, not literally USER &
> PASSWORD of course)
>
> When I send, this is the output in /var/log/mail
>
> Apr 7 11:37:23 orca postfix/pickup[7256]: CAA50A2F80: uid=0 from=<root>
> Apr 7 11:37:23 orca postfix/cleanup[8446]: CAA50A2F80:
> message-id=<20120407193723.CAA50A2F80@orca.mmc>
> Apr 7 11:37:23 orca postfix/qmgr[7404]: CAA50A2F80:
> from=<root@orca.mmc>, size=417, nrcpt=1 (queue active)
> Apr 7 11:37:24 orca postfix/smtp[8448]: CAA50A2F80:
> to=<atftb2@alaska.net>,
> relay=smtpgate.acsalaska.net[209.112.168.120]:25, delay=0.83,
> delays=0.11/0.01/0.5/0.2, dsn=5.1.8, status=bounced (host
> smtpgate.acsalaska.net[209.112.168.120] said: 553 5.1.8
> <atftb2@alaska.net>... Domain of sender address root@orca.mmc does not
> exist (in reply to RCPT TO command))
> Apr 7 11:37:24 orca postfix/cleanup[8446]: A409BA3009:
> message-id=<20120407193724.A409BA3009@orca.mmc>
> Apr 7 11:37:24 orca postfix/qmgr[7404]: A409BA3009: from=<>, size=2302,
> nrcpt=1 (queue active)
> Apr 7 11:37:24 orca postfix/bounce[8449]: CAA50A2F80: sender
> non-delivery notification: A409BA3009
> Apr 7 11:37:24 orca postfix/qmgr[7404]: CAA50A2F80: removed
> Apr 7 11:37:24 orca postfix/local[8450]: A409BA3009:
> to=<root@orca.mmc>, relay=local, delay=0.11, delays=0.05/0.03/0/0.04,
> dsn=2.0.0, status=sent (delivered to mailbox)
> Apr 7 11:37:24 orca postfix/qmgr[7404]: A409BA3009: removed
>
>
> It's failing on the "domain of sender address does not exist).
> Obviously my home box doesn't isn't an acsalaska.net controlled box so
> the hostname.domain are purely local. I should be connecting through a
> NATted address via the DSL router however, so I was hoping that the
> relay would be allowed due to it being a trusted network.
>
> What do I need to do to get local mail relayed through acsalaska.net -
> I'd like to have a messages to root@localhost and/or my normal user
> account on localhost routed to my acsalaska.net email, and maybe send a
> message from the command line to others now and then.
>
> I'm not planning on receiving any mail on this box. I'm just trying to
> figure out how to send from it.
>
> Thanks...
>
> ...Kevin
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Received on Sat Apr 7 12:29:57 2012

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