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What is the proper way to switch from a hosted e-mail solution to a in house exchange 2007 server?

We are switching to an in exchange environment from a hosted service.  

We asked our hosted solution to create an MX record that points to our server with a higher priority(10).  They will keep our old mx record with a lower priority(40) as a backup.

We also had our ISP create a ptr record to point to our edge server.

Is this correct?

I cannot receive or send any e-mail now. I am not sure if this is what is causing the problem.

Thanks,

Lynn

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lynndaly2000
Asked:
lynndaly2000
2 Solutions
 
DMTechGrooupCommented:
Have you opened port 25 for mail?  Is your ISP blocking port 25?  MX records of 10/40 don't really matter as not everyone follows RFC standards.  If you could have your hosted provider forward any mail they get to you that would work.

Use a machine off your network and try telneting into the mail server to make sure it is accepting connections.

http://support.microsoft.com/kb/153119


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lynndaly2000Author Commented:
i tried to telnet to port 25 and I can't.  I can't even ping the server from the outside. (WAN).  I have to Network cards one for internal and one for external and can ping the server from the LAN.
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DToolshedCommented:
As DMT said, check that firewall to make sure port 25 is open, AND check your SMTP service is running. Telent to port 25 from a machine INSIDE the network to make sure you CAN talk to Exchange at all.
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