From: Jay Chandler (listssequestered.net)
Date: Fri Oct 26 2007 - 13:46:27 CDT

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Dave McGuire wrote:
>
> Hi folks. One of my customers is relaying mail through my server, and
> it's bouncing with a log message that I've never seen before:
>
> Oct 26 14:22:05 mail postfix/smtp[6116]: 363CE1981EC: to=<xxxyyy.zzz>,
> relay=office.fhsaa.org[72.243.244.90]:25, delay=3.3,
> delays=0.22/0/0.49/2.6, dsn=5.7.1, status=bounced (host
> office.fhsaa.org[72.243.244.90] said: 550 5.7.1 Sender ID (PRA) Not
> Permitted (in reply to end of DATA command))
>
> I'm running Postfix v2.4.0 on that server, and my other outbound mail
> is flowing fine. What causes this, and how can I fix it, does anyone
> know offhand?
>
> Thanks,
> -Dave
>

Google is your friend:

http://www.mcse.ms/message2022068.html
They probably haven't configured SenderID properly on their domain.

--
Jay Chandler / KB1JWQ
Living Legend / Systems Exorcist
Today's Excuse: network packets travelling uphill (use a carrier pigeon)

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