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Exchange Server Refusing to Send/Receive via SMTP

Posted on 2006-07-10
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Last Modified: 2010-03-06
Hi,

I have a new-build Exchange Server, to which I have migrated by previous SBS2003 mailboxes and AD, via joining it to the domain, promoting to DC, and then seizing the Op master roles etc and restoring the mailboxes. Mailbox access and local email is fine, but anything in and out is getting 550 5.7.1 Unable to relay as an error. The virtual server is set to allow relay from all and anonymous access. Any suggestions appeciated.

Ben
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Question by:Ben-Higgins
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by:Ben-Higgins
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Ok, now with some tweaking all outbound emails are displaying error "The remote server did not respond to a connection attempt" I can telnet the mail host fine from the server though.
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by:Sembee
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First - review your relay settings. You have probably turned yourself in to an open relay. You don't need to adjust the relaying settings to get email to flow out.

Are you using a smart host to send email? Does that smart host require a username and password?

Simon.
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by:Ben-Higgins
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Thanks for your comment. We are using DNS to send, not a smart host, and as far as realy settings go, I have a test SMTP virtual server/connector pair with no realy restrictions to ensure relay restrictions aren't causing a problem, which they are not.

Cheers
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by:Sembee
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When you did your telnet test, did you actually send an email message?

Simon.
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by:Ben-Higgins
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Nope; just telnet and both helo and ehlo with response. Ignorant as I am, I don't know any other SMTP commands
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by:Sembee
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I have a quick guide here:
http://www.amset.info/exchange/telnet-test.asp

Simon.
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by:Ben-Higgins
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Simon,

Thanks for that; a useful guide indeed.

I have however, solved the issue by building a new Exchange server on the old SBS hardware and transferring mailboxes and master role, as well as adding new connectors/virtual servers. This is what I planned to do in the medium term anyway, so no major harm done.

The one further thing I need to do is remove the troubled server from the Exchange implementation. Is it just a case of using the remove server option on the menu for a given server?

If you could clarify this and any other issues I need to be aware of when removing this server, i'm happy to award you the points.

Thanks,

Ben
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Sembee earned 500 total points
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There is a procedure that must be followed for removing the first installed Exchange server.
http://support.microsoft.com/default.aspx?kbid=822931

If you don't follow the procedure, it makes an awful mess to clean up.

Simon.
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