On Mon, Mar 12, 2012 at 12:10:30PM -0400, Charles Marcus wrote:
> I hope someone here who has used Postini can suggest a way to resolve this.
>
> I get the following error in the logs (<u...@example.com> is a valid
> user on our system):
>
> Mar 12 02:48:29 myhost postfix-25/smtpd[25932]: C0F52760CFF:
> client=exprod6mx207.postini.com[64.18.1.107]
> Mar 12 02:48:30 myhost postfix/cleanup[25937]: C0F52760CFF:
> message-id=<1316900478.1331534907972.JavaMail.SYSTEM@sj-w-06cmp78>
> Mar 12 02:48:30 myhost postfix/qmgr[20957]: C0F52760CFF:
> from=<n...@external-example.com>, size=13599, nrcpt=2 (queue active)
This sender address is likely associated with "SPF" records, or
perhaps subject to a simple policy in which email from (envelope)
a domain known to send via Postini is barred from originating from
other sources.
> relay=outbounds6.obsmtp.com[64.18.5.12]:25, delay=1,
> delays=0.65/0.01/0.27/0.07, dsn=5.0.0, status=bounced (host
> outbounds6.obsmtp.com[64.18.5.12] said: 518 Sender not authorized
> from this ip - psmtp (in reply to MAIL FROM command))
There's nothing you can do, don't forward mail to these domains,
they no longer wish to receive such mail.
You are perhaps expected to implement SRS, ... but I would not
bother.
--
Viktor.
