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If you have the Internet Mail, Internet E-mail (IMEP) or
Microsoft Exchange Server service installed, Outlook, Exchange client or
Windows Messaging may dial your ISP
automatically. Either you have configured the Internet Mail or Internet E-mail to check
mail on a regular schedule and dial automatically, or the Microsoft Exchange Server service is trying to locate a
DNS server so that it can find the Exchange Server.
Exchange Server | Internet
E-mail | Internet Mail | More
Information
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Exchange Server
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If Outlook is set up to connect to Exchange Server and it dials
whenever you start Outlook, this generally means that Outlook cannot
find the server on the network and is set up to automatically
connect to the Internet. Outlook tries to make an Internet
connection to get to a DNS server that might tell it where to find
the Exchange Server. There are several ways to approach this
problem:
Method #1: Add a DNS server to the network.
Method #2: If the client has Microsoft Internet Explorer 3.x, in Control Panel | Internet,
on the Connection tab, clear the Connect to the Internet as
needed option.
Method #3: If the client has Internet Explorer 4.0, in Control Panel | Internet,
on the Connection tab, choose Connect to the Internet using a
local area network.
Method #4: If the client has Internet Explorer 5.x, in Control Panel | Internet,
on the Connections tab, make sure the checkbox for Dial
whenever a network connection is not present is unchecked. Also
click the Settings button and make sure that the Do not allow
Internet applications to use this connection is checked.
Method #5 (Preferred, if you don't have a DNS server): Edit the C:\Windows\Hosts file (creating it if needed) to include a
pointer to the IP address of the Exchange Server. Save the following two lines to
C:\Windows\Hosts on the Exchange client PC:
127.0.0.1 localhost
n.n.n.n <exchange server name>
where n.n.n.n represents the numeric IP address
for the Exchange Server and <exchange server name>
represents the server name that the user has defined for the Microsoft Exchange Server
service in the profile.
Also change the client's RPC Binding Order to use TCP/IP by saving the following four
lines to a file with a .REG extension and double-clicking on it.
REGEDIT4
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\Exchange Provider]
"Rpc_Binding_Order"="ncacn_ip_tcp,ncacn_np"
This is the preferred method for networks without a DNS server, since
methods 2-4 have the side effect of
disabling Windows' ability to automatically connect to Internet resources. If you use this
method, the client should also connect to the server noticeably faster. Many thanks to
Greg Askew for posting the detailed instructions for this method in the newsgroups.
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Internet Mail
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This applies to the Internet Mail service for the Exchange client,
Windows Messaging or Outlook 97:
Choose Tools | Services, and bring up
the Properties dialog for Internet Mail. On the Connection tab, check the
box for Work offline and use Remote Mail. This turns off scheduled
connections, but you can press F5 to check your mail any time you want.
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