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Probelm with 1and1 Exchange Account and ISA

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Probelm with 1and1 Exchange Account and ISA - 6.Mar.2007 12:53:26 PM   
dinlow

 

Posts: 17
Joined: 28.Feb.2005
Status: offline
Hi,
I'm experiencing problem with my Outlook client connecting to my external Exchange Account that is hosted by 1and1.com. 

I'm using ISA 2004 Std with SP2.  All my INTERNAL client have unrestricted access to the Internet, but my Outlook is still hanging/freezing when I try to send an email.  Problem does not occur if I remove ISA.

All my clients are using Static NAT. 

Can someone let me know if there is any settings I need to configure from my ISA server to allow Incoming Traffic from 1and1.com to my Internal network?

Thanks!
Patrick
Post #: 1
RE: Probelm with 1and1 Exchange Account and ISA - 6.Mar.2007 3:59:55 PM   
tshinder

 

Posts: 50013
Joined: 10.Jan.2001
From: Texas
Status: offline
What protocols need access?

Tom


_____________________________

Thomas W Shinder, M.D.

(in reply to dinlow)
Post #: 2
RE: Probelm with 1and1 Exchange Account and ISA - 6.Mar.2007 4:42:57 PM   
dinlow

 

Posts: 17
Joined: 28.Feb.2005
Status: offline
It uses only RPC over HTTP.

(in reply to tshinder)
Post #: 3
RE: Probelm with 1and1 Exchange Account and ISA - 6.Mar.2007 9:51:58 PM   
auchanaka1980

 

Posts: 108
Joined: 16.Jan.2007
Status: offline
how did u configure RPc over HTTP?

(in reply to dinlow)
Post #: 4
RE: Probelm with 1and1 Exchange Account and ISA - 7.Mar.2007 12:45:58 AM   
dinlow

 

Posts: 17
Joined: 28.Feb.2005
Status: offline
The configuration on the client side is fine, since it works after I remove ISA from the network and go directly with my cable modem.

I use the following:
[x] Connect to my Exchange mailbox using HTTP
 
Exchange Proxy Settings
 
https://exchange1and1.com
[x] Mutually authenticate the session when connecting with SSL
Principle name for proxy server: msstd:exchange.1and1.com

[x] On fast networks, connect using HTTP first, then connect using TCP/IP
[x] On slow networks, connect using HTTP first, then connect using TCP/IP

Proxy authentication settings: Basic Authentication
 
=================
I also verified the Outlook Connection Status is all connected using HTTPS with Status = Established.

What I want to know is are there any rules that I need to define from the ISA server if my clients are connecting to an external Exchange Server?

(in reply to auchanaka1980)
Post #: 5
RE: Probelm with 1and1 Exchange Account and ISA - 7.Mar.2007 9:52:17 AM   
tshinder

 

Posts: 50013
Joined: 10.Jan.2001
From: Texas
Status: offline
Configure the destination site for Direct Access so that the Web proxy filter is bypassed.

HTH,
Tom

_____________________________

Thomas W Shinder, M.D.

(in reply to dinlow)
Post #: 6
RE: Probelm with 1and1 Exchange Account and ISA - 7.Mar.2007 12:41:55 PM   
dinlow

 

Posts: 17
Joined: 28.Feb.2005
Status: offline
Tom,
Do you have the step-by-step instruction for that or a reference in your book? :) 

Thanks,
Patrick

< Message edited by dinlow -- 7.Mar.2007 1:10:57 PM >

(in reply to tshinder)
Post #: 7
RE: Probelm with 1and1 Exchange Account and ISA - 8.Mar.2007 12:02:53 PM   
tshinder

 

Posts: 50013
Joined: 10.Jan.2001
From: Texas
Status: offline
Hi Patrick,

There are a few articles on this site on Direct Access that will help you understand the principles and help get you going.

Tom

_____________________________

Thomas W Shinder, M.D.

(in reply to dinlow)
Post #: 8

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