[ExchangeList] Re: Question on Error #550 5.7.1 Sender ID not permitted

mail going to my Exchange server, front ended by ISA 2006.

________________________________

From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of John T (lists)
Sent: Thursday, January 24, 2008 3:52 PM
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] Re: Question on Error #550 5.7.1 Sender ID not
permitted



Email going out of your server or to your server?

 

John T

 

From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Todd Lemmiksoo
Sent: Thursday, January 24, 2008 12:26 PM
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] Question on Error #550 5.7.1 Sender ID not
permitted

 

One of our customers e-mails was returned to them with the above error
message. I e-mailed them a DNSstuff report with this error

WARNING: One or more of your mailservers is claiming to be a host other
than what it really is (the SMTP greeting should be a 3-digit code,
followed by a space or a dash, then the host name). If your mailserver
sends out E-mail using this domain in its EHLO or HELO, your E-mail
might get blocked by anti-spam software. This is also a technical
violation of RFC821 <http://www.DNSstuff.com/pages/rfc821.htm>  4.3 (and
RFC2821 <file:///\\tools\rfc.ch?detail=2821>  4.3.1). Note that the
hostname given in the SMTP greeting should have an A record pointing
back to the same server. Note that this one test may use a cached DNS
record.

mariettacorp.com.s7a1.psmtp.com claims to be invalid hostname 'Postini':
<br /> 220 Postini ESMTP 224 y6_13_0c9 ready. CA Business and
Professions Code Section 17538.45 forbids use of this system for
unsolicited electronic mail advertisements. <br
/>mariettacorp.com.s7a2.psmtp.com claims to be invalid hostname
'Postini': <br /> 220 Postini ESMTP 224 y6_13_0c9 ready. CA Business and
Professions Code Section 17538.45 forbids use of this system for
unsolicited electronic mail advertisements. <br
/>mariettacorp.com.s7b1.psmtp.com claims to be invalid hostname
'Postini': <br /> 220 Postini ESMTP 224 y6_13_0c9 ready. CA Business and
Professions Code Section 17538.45 forbids use of this system for
unsolicited electronic mail advertisements. <br
/>mariettacorp.com.s7b2.psmtp.com claims to be invalid hostname
'Postini': <br /> 220 Postini ESMTP 219 y6_13_0c9 ready. CA Business and
Professions Code Section 17538.45 forbi

They called me back to say that they do not use sender ID and that my
Exchange server is configured wrong. I am running Exchange 2003 SP2,
IMF, RBL and anti-spam software on the Exchange and ISA2006 servers.

Do I have something wrong in my configuration that caused the 550 5.7.1
error. 

Todd Lemmiksoo 
Network Administrator 

All-Mode Communications, Inc. 
1725 Dryden Road 
Freeville, New York  13068 
(607) 347-4164 x440 
1-877-ALLMODE  (toll free) 
http://www.all-mode.com <http://www.all-mode.com>

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