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Resolve domain name to ip address

Posted on 2006-11-29
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Last Modified: 2010-03-06
Exchange 2003 sends mail and receives no problem's will all isp's except GoDaddy. Problem Exchange server name when looking at received from is servername.domainname.local . I cannot telnet to this but I can telnet to smtp.domainname.com no problem (this is an mx record @ our isp). I assume we can't change the server name at this point. What can I do to get GoDaddy to allow our domain to send mail to our clients within their ISP? I have created mx records and ptr records in our internal DNS server zones to match mx records at our ISP. I still can't change the fqdn in ESM to smtp.domainname.com. need a little help
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Question by:CESGlobal
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6 Comments
 
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Accepted Solution

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Sembee earned 1000 total points
ID: 18040094
Go Daddy are probably complaining about the SMTP banner.
If you telnet to port 25 of your server, it has a name at the top. If that is .local then you will have problems.

It can be changed easily in ESM, Servers, <your server>, Protocols, SMTP. Right click on the Default SMTP VS and choose properties. Click on the tab Delivery and then Advanced. In the box labelled FQDN, enter your external name - smtp.domainname.com or whatever it is.

Apply/OK out.

Simon.
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Author Comment

by:CESGlobal
ID: 18040128
Simon,

I tried that but it indicates smtp.domainname.com is not valid. I agree but not sure what next to do.
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LVL 104

Expert Comment

by:Sembee
ID: 18040189
Ignore the check DNS button. That only applies if you are running multiple Exchange servers.

Simon.
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Author Comment

by:CESGlobal
ID: 18040311
That worked but I have 1 more for you, Go Daddy tells me they can't telnet cesglobal.com. I know this is accurate but should you be able to telnet cesglobal.com 25. cesglobal.com has an a record pointing to our website. any comments would be appreciated, still relates to the same issue.
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LVL 104

Expert Comment

by:Sembee
ID: 18040363
GoDaddy are wrong. The root of the domain should not be used for email, there is no reason why you should be able to telnet to domain.com 25

telnet microsoft.com 25

that doesn't work. Do GoDaddy block email from Microsoft on that basis?

Simon.
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Author Comment

by:CESGlobal
ID: 18040379
It didn't think so but I wanted to make sure. All is good now and thanks for your help again.......
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