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glyn

Windows Server 2008 R2 Email Problem

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Morning.

 

Having a problem with my Windows Server but can't find out what the problem is.

 

I have a program through which I can enter my email details so that the program can essentially send emails via it's workflow. I enter in all the details required (pop, port etc) but when I try and connect to the mailbox I get an error.

 

I have the same program on my Win 7 machine and running exactly the same project file the connection gets through just fine.

 

On my Windows Server I have tried to disable the Firewall and then run re-connection to the mailbox, but this has not impact what so ever.

 

Does anyone know what might be the setting or feature that is stopping the program connect to the mailbox and returning always a connection error.

 

Thanks

 

Glyn.

 

 

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There must be some setting which would allow you to see the "talk" between the two. This would tell us whether they are connecting and/or why not. A type of debug thing.

 

Other than that it's the big stick and sniffing the wire.

 

AH the first question: When was the last time it worked on the server?

 

Which program?

 

You could try the steps by hand using (ouch) telnet or something.

 

Use Telnet to test SMTP communication on Exchange servers
https://technet.microsoft.com/en-us/library/bb123686(v=exchg.160).aspx

How to Use Telnet to Test SMTP Communication
https://technet.microsoft.com/en-us/library/aa995718(v=exchg.65).aspx

 

Telnet may not be installed.

Install Telnet Client - technet.microsoft.com
https://technet.microsoft.com/en-us/library/cc771275(v=ws.10).aspx

Edited by bobbb

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If on one computer when you browse to the mail hostname and get "hello world" and on the server you open a browser and browse and instead get a "page not found" where is the problem?

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This only confirms some server responded to a request to port 80. The different replies suggest it may not be the same server which responded if there is a round robin resolution to the hostname. You are trying to get to port 25. ("send emails via it's workflow").

There isn't some logging or debug feature to this program?

 

Ah! It must be one of your specially concocted program.

Edited by bobbb

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It was an ip block, now resolved. Thanks for your help and insights for next time!

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