Query domain for SMTP address

Roger

Is there a way to query a domain for smtp server? For instance, I am
sending mail to jo*@microsoft.com, I want to contact smtp server at
microsoft.com but smtp server is subdomain of microsoft.com, which I am
unaware of. When I perform Dns.Resolve on microsoft.com, i don't get ip of
smtp server. How can I get ip of smtp.microsoft.com?

Nov 17 '05 #1

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2128

Steve Foley

I don't know how to use dns.resolve, but.....
using nslookup:

set type=mx

does the trick. I suspect it's something similar.

"Roger" <so*****@microsoft.com> wrote in message
news:u3**************@TK2MSFTNGP09.phx.gbl...

Is there a way to query a domain for smtp server? For instance, I am
sending mail to jo*@microsoft.com, I want to contact smtp server at
microsoft.com but smtp server is subdomain of microsoft.com, which I am
unaware of. When I perform Dns.Resolve on microsoft.com, i don't get ip of smtp server. How can I get ip of smtp.microsoft.com?

Nov 17 '05 #2

James Curran

The Dns class does not do what you want. However, this article may be
useful:

http://www.codeproject.com/csharp/DnsLookupDotNet.asp
--
Truth,
James Curran
[erstwhile VC++ MVP]

Home: www.noveltheory.com Work: www.njtheater.com
Blog: www.honestillusion.com Day Job: www.partsearch.com
"Roger" <so*****@microsoft.com> wrote in message
news:u3**************@TK2MSFTNGP09.phx.gbl...

Is there a way to query a domain for smtp server? For instance, I am
sending mail to jo*@microsoft.com, I want to contact smtp server at
microsoft.com but smtp server is subdomain of microsoft.com, which I am
unaware of. When I perform Dns.Resolve on microsoft.com, i don't get ip of smtp server. How can I get ip of smtp.microsoft.com?

Nov 17 '05 #3

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Query domain for SMTP address

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