authentication required?

computerlady911

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Joined
Mar 12, 2006
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I have two websites that are hosted on the same server. Both domains have external mail servers. Email seems to be getting to both domains from the world. The two domains are ctrl8.com and mandometer.us. Ctrl8 can send email to Mandometer. But mandometer cannot send to ctrl8.

Here is the error message from the exim log.

2006-06-01 09:45:54 H=adsl-67-125-160-190.dsl.sndg02.pacbell.net (mandometer.us) [67.125.160.190] F=<[email protected]> rejected RCPT <[email protected]>: authentication required

Why would the DA server be trying to authenticate? Message should just go to external server. Help?
 
Anybody?

Both external servers are running Exchange 2003. User is a valid using on target email server.
 
We are doing a telet test from their server. The connection is okay. When I type rcpt to:myemail.ctrl8.com I get either invalid address or unreconized command

then after a few minutes of trying different email address, I try mine again and it works. I get a 250 message.

So I send a test. It gets blocked at the DA Server. Why would the DA server even be trying to authenticate anything when, according to the MX record, Mail should be going to external server?
 
computerlady911 said:
2006-06-01 09:45:54 H=adsl-67-125-160-190.dsl.sndg02.pacbell.net (mandometer.us) [67.125.160.190] F=<[email protected]> rejected RCPT <[email protected]>: authentication required

Why would the DA server be trying to authenticate?
It's not. Exim is reporting back the error it's getting from the exchange server at adsl-67-125-160-190.dsl.sndg02.pacbell.net, presumably the reverse DNS name of the Exchange server. It's the exchange server that's asking for the authentication; the problem is most likely there.

Good luck on finding anyone who understands Exchange; I read an (unbiased) article a few days that said it was the hardest to administer server that Microsoft publishes.

Jeff
 
Why only me

So why are they only having this problem when they try to email me? they can email everybody else.
 
Host file on local computer

The target email server did not have host entry in its dns for mail.domain.com. There was also a setting in the Exchange server that said only domain.com not mail.domain.com. That seems to have resolved the issue.
 
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