Article: Q150114
Product(s): Microsoft Exchange
Version(s): winnt:4.0
Operating System(s):
Keyword(s): kbtool kbusage
Last Modified: 23-MAR-1999
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The information in this article applies to:
- Microsoft Exchange Server, version 4.0
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SUMMARY
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When you compare the results between Nslookup.exe and Restest.exe, it may appear
that the Microsoft Exchange Internet Mail Connector (IMC) is not resolving all
mail exchangers for a given domain.
MORE INFORMATION
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For example, you may notice a discrepancy between the number of mail exchangers
listed by Restest.exe and Nslookup.exe on the following query.
Below is a sample run of Restest.exe:
C:\my documents>e:restest -debug aol.com
*** Matches Microsoft Exchange Server build 4.0.0736 ***
host[0] = '198.81.11.33'
host[1] = '198.81.11.14'
host[2] = '198.81.11.37'
host[3] = '198.81.11.15'
host[4] = '198.81.11.52'
Notice that Restest.exe displays 6 mail exchangers for AOL.COM. Nslookup.exe
appears to show more mail exchangers.
Below is a sample run of Nslookup.exe:
> server hp81.prod.aol.net
Default Server: hp81.prod.aol.net
Address: 192.203.190.18
> set type=MX
> aol.com.
Server: hp81.prod.aol.net
Address: 192.203.190.18
aol.com preference = 15, mail exchanger = e.mx.aol.com
aol.com preference = 15, mail exchanger = f.mx.aol.com
aol.com preference = 15, mail exchanger = a.mx.aol.com
aol.com preference = 15, mail exchanger = b.mx.aol.com
aol.com preference = 15, mail exchanger = c.mx.aol.com
aol.com preference = 15, mail exchanger = d.mx.aol.com
aol.com nameserver = ops01.ops.aol.com
aol.com nameserver = dns-aol.ans.net
aol.com nameserver = hp81.prod.aol.net
e.mx.aol.com internet address = 198.81.11.18
e.mx.aol.com internet address = 198.81.11.20
e.mx.aol.com internet address = 198.81.11.12
e.mx.aol.com internet address = 198.81.11.15
f.mx.aol.com internet address = 198.81.11.51
f.mx.aol.com internet address = 198.81.11.52
f.mx.aol.com internet address = 198.81.11.53
f.mx.aol.com internet address = 198.81.11.54
f.mx.aol.com internet address = 198.81.11.50
a.mx.aol.com internet address = 198.81.11.28
a.mx.aol.com internet address = 198.81.11.29
a.mx.aol.com internet address = 198.81.11.30
a.mx.aol.com internet address = 198.81.11.11
b.mx.aol.com internet address = 198.81.11.32
b.mx.aol.com internet address = 198.81.11.33
b.mx.aol.com internet address = 198.81.11.13
b.mx.aol.com internet address = 198.81.11.31
Although Nslookup.exe shows many more IP addresses listed for aol.com, there are
still only 6 mail exchangers (a.mx.aol.com .. f.mx.aol.com). AOL has multiple,
redundant hosts listed for each mail exchanger.
Microsoft Exchange, and Restest.exe, are working correctly.
Additional query words:
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Keywords : kbtool kbusage
Technology : kbExchangeSearch kbExchange400 kbZNotKeyword2
Version : winnt:4.0
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