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HTTP 1.1 /503 Service not available

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HTTP 1.1 /503 Service not available - 30.Aug.2005 2:50:00 AM   
aganesh009

 

Posts: 38
Joined: 29.Jul.2005
From: India
Status: offline 		Hi

We are getting the following error while accessing through OWA.

There are 2 Exchange Server (Both Front end and Backend) in London and one additional exchange backend server in Paris.

When the user from Paris having mailbox in Paris Exchange Server trying to access their mails through OWA getting the following error.

We created the test user in Paris Exchange Server and tried to access the mail from the London Network through OWA getting the same error as follows.
-----------------------------------------------------------------------------------------------
HTTP/1.1 503 Service Unavailable
-----------------------------------------------------------------------------------------------

We are using Exchange 2003 and Windows 2003 as Backend and Front End server in London and additional Backend server is Windows 2003 and Exchange 2003 deployed in Paris.

Any help would be appreciated.
Post #: 1
RE: HTTP 1.1 /503 Service not available - 31.Aug.2005 11:06:00 AM   
tcaud

 

Posts: 124
Joined: 17.Sep.2004
From: Alabama
Status: offline 		My first step in a similar situation was to ensure that the Frontend server could authenticate to the backend that hosts the mail store.

If you are unable to ping or nslookup the backend server from the frontend by DNS name, then you won't be able to get to the backend mail store.

Good luck!

(in reply to aganesh009)
Post #: 2
RE: HTTP 1.1 /503 Service not available - 31.Aug.2005 1:57:00 PM   
consultOz

 

Posts: 926
Joined: 11.Mar.2005
From: Virginia, USA
Status: offline 		Taurean,

I am not sure if you have seen this already,

http://support.microsoft.com/?kbid=823159

http://support.microsoft.com/default.aspx?scid=kb;en-us;282230
and,
http://forums.msexchange.org/ultimatebb.cgi?ubb=get_topic;f=17;t=001701

Cheers
oz

[ August 31, 2005, 02:00 PM: Message edited by: oz ]

(in reply to aganesh009)
Post #: 3
RE: HTTP 1.1 /503 Service not available - 3.Nov.2005 2:34:47 AM   
aganesh009

 

Posts: 38
Joined: 29.Jul.2005
From: India
Status: offline 		Thanks it is working because of firewall block this problem occurred.

(in reply to consultOz)
Post #: 4

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