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jasonslogan

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Exchange 2003: Sender address rejected: User unkown in relay recipient table

On a couple of email addresses I keep getting this error

Sender address rejected: User unknown in relay recipient table>

I can send to these emails from my yahoo account but not through my exchange server.
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BBRazz
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Can you copy the exact NDR so we can se where it is being rejected?

Also, you might want to check your local DNS. Try NSLOOKUP from the exchange server and ensure it is able to get the correct MX records for the domain.
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jasonslogan

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Here is the error:

Your message did not reach some or all of the intended recipients.

      Subject:      Hello
      Sent:      7/23/2008 12:27

The following recipient(s) cannot be reached:

      'parts@molletoyota.com' on 7/23/2008 12:28
            The e-mail address could not be found.  Perhaps the recipient moved to a different e-mail organization, or there was a mistake in the address.  Check the address and try again.
            : Sender address rejected: User unknown in relay recipient table>

Here is the nslookup from the server:

Address:  10.6.150.5

> set type=mx
> molletoyota.com
Server:  srv-dcm-mtn.rrdom.com
Address:  10.6.150.5

Non-authoritative answer:
molletoyota.com MX preference = 20, mail exchanger = mx2.emailsrvr.com
molletoyota.com MX preference = 10, mail exchanger = mx1.emailsrvr.com

mx2.emailsrvr.com       internet address = 207.97.245.97
mx1.emailsrvr.com       internet address = 66.216.121.101
>
So you are sending from randyreed.com to molletoyota.com?

Do you also have SMTP Logging enabled? If not can you enable it, with all items ticked, try another email, disable logging and post the log file here for analysis?
Here ya go:

#Software: Microsoft Internet Information Services 6.0
#Version: 1.0
#Date: 2008-07-23 18:22:13
#Fields: date time c-ip cs-username s-sitename s-computername s-ip s-port cs-method cs-uri-stem cs-uri-query sc-status sc-win32-status sc-bytes cs-bytes time-taken cs-version cs-host cs(User-Agent) cs(Cookie) cs(Referer)
2008-07-23 18:22:42 66.216.121.101 OutboundConnectionResponse SMTPSVC1 MAIL - 25 - - 220+mx1.emailsrvr.com+ESMTP+-+(gate9.gate.sat.mlsrvr.com)+VA+Code+Section+18.2-152.3:1+forbids+sending+spam+through+this+system 0 0 127 0 94 SMTP - - - -
2008-07-23 18:22:42 66.216.121.101 OutboundConnectionCommand SMTPSVC1 MAIL - 25 EHLO - mail.randyreed.com 0 0 4 0 94 SMTP - - - -
2008-07-23 18:22:42 66.216.121.101 OutboundConnectionResponse SMTPSVC1 MAIL - 25 - - 250-gate9.gate.sat.mlsrvr.com 0 0 29 0 204 SMTP - - - -
2008-07-23 18:22:42 66.216.121.101 OutboundConnectionCommand SMTPSVC1 MAIL - 25 MAIL - FROM:+SIZE=2574 0 0 4 0 204 SMTP - - - -
2008-07-23 18:22:42 66.216.121.101 OutboundConnectionResponse SMTPSVC1 MAIL - 25 - - 250+2.1.0+Ok 0 0 12 0 313 SMTP - - - -
2008-07-23 18:22:42 66.216.121.101 OutboundConnectionCommand SMTPSVC1 MAIL - 25 RCPT - TO: 0 0 4 0 313 SMTP - - - -
2008-07-23 18:22:42 66.216.121.101 OutboundConnectionResponse SMTPSVC1 MAIL - 25 - - 550+5.1.0+:+Sender+address+rejected:+User+unknown+in+relay+recipient+table 0 0 101 0 438 SMTP - - - -
2008-07-23 18:22:42 66.216.121.101 OutboundConnectionCommand SMTPSVC1 MAIL - 25 RSET - - 0 0 4 0 438 SMTP - - - -
2008-07-23 18:22:42 66.216.121.101 OutboundConnectionResponse SMTPSVC1 MAIL - 25 - - 250+2.0.0+Ok 0 0 12 0 547 SMTP - - - -
2008-07-23 18:22:42 66.216.121.101 OutboundConnectionCommand SMTPSVC1 MAIL - 25 QUIT - - 0 0 4 0 704 SMTP - - - -
2008-07-23 18:22:42 66.216.121.101 OutboundConnectionResponse SMTPSVC1 MAIL - 25 - - 221+2.0.0+Bye 0 0 13 0 813 SMTP - - - -
                             
It's strange but when I remote to my server at home on the road runner network and do an nslookup on molletoyota.com is gives me:

mx1.emailsrvr.com       internet address = 207.97.245.101
mx2.emailsrvr.com       internet address = 66.216.121.97

On my server here at work, on AT&T, it gives me the 66.216.121.101...
Testing from the UK I get :

mx1.emailsrvr.com       internet address = 207.97.245.101
mx2.emailsrvr.com       internet address = 66.216.121.97
ns86.worldnic.com       internet address = 205.178.144.43

If you see the log below, the error is an error on the recipients server. The email is getting to the server, but they are rejecting your sending domain.

2008-07-23 18:22:42 66.216.121.101 OutboundConnectionResponse SMTPSVC1 MAIL - 25 - - 550+5.1.0+:+Sender+address+rejected:+User+unknown+in+relay+recipient+table 0 0 101 0 438 SMTP - - - -

I have tried sending email via other domains from your domain to the user in question and it appears they have blacklisted you for some reason.

I would suggest contacting the company in question and getting them to address the issue with their ISP.
It doesnt look the randyreed.com mail server is being outright blocked or blacklisted for SPAM.

MX for randyreed.com
mail.randyreed.com = 67.65.42.205
mail-backup.randyreed.com = 66.28.145.65

rDNS
67.65.42.205 resolves to 67-65-42-205.ded.swbell.net
66.28.145.65 / mail-backup.randyreed.com is not accessible (online?)

Parts@molletoyota.com is a legit/working email addr.  It looks like the AT&T server could not find molletoyota.com. It appears you are using a mail relay or smarthost?

P2E
Sorry for the delay had a big install that took days.

I am not using a smarthost or a relay.

So what do we think?  DNS problem at AT&T or ISP has blacklisted me? or both?  Are there any other possibilities?
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BBRazz
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I will change my outgoing IP of my network to mail.randyreed.com on my dns server and see if that fixes it.
My outgoing IP is different than my mail server's incoming IP.  I changed the dns host for mail.randyreed.com to match my outgoing IP address.  We'll see if that fixes it.

How are you supposed to do this then?  Most companies have different outgoing IP addresses and their incoming ones.

There is another company I can't send email to also.  Now that I see the IP's I believe they are on the same email server.  They both must be using one company to host their webpages and email.
If companies have different outbound and inboud IP's they will still configure DNS so that all records match and the Welcome Message also matches.

per your response - what is serverex.mydomainhere.com?? Are you POP'g your mail from mxlogic.net and using SMTP locally?
your fdqn, "mydomainhere.com" resolves to 83.x.x.109;
your mail ip is 64.x.x.11 & 64.x.x.12;
your mail records are mailstore1.secureserver.net; smtp.secureserver.net
your ptr records are good (64.x.x.11/12)
 
mxlogic.net resolves to 208.65.150.133
in your mail header shows examplesite.inbound15.mxlogic.net which resolves 208.65.144.12
Possible problem... there is no assocation with mydomainhere.com and your IP (64....11/12);  Big guys (e.g, AOL, MSN, etc) do reverse lookup on you (mail) IP.