RE: Emails in OWA

  • From: "William England ( WJ Admin)" <administrator@xxxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Mon, 17 Nov 2003 22:26:36 +0100

Hi

 

The problem is I am still trying it on the inside.

 

Have not dared form the outside yet.

 

-----Original Message-----
From: Kelli Irwin [mailto:kirwin@xxxxxxxxxxxxxxxxxxxxxx] 
Sent: 17 November 2003 22:20
To: [ExchangeList]
Subject: [exchangelist] RE: Emails in OWA

 

http://www.MSExchange.org/

 

 

Hi William,

 

I had that problem when I first took over this network.  We were getting
the same thing, the frames would load but no data.  Our problem was that
OWA/IIS sends out large packets and some servers/routers aren't able to
handle that size packet.  The Server/router can't fragment the packet
because OWA/IIS sets the DF flag (Do not fragment).  The Server/router
then sends back an ICMP packet (I believe it is type 3 code 4) asking
for OWA/IIS  to fragment the packet and resend.  Unfortunately, ISA was
blocking the inbound ICMP packets.  Make sure ISA is not blocking the
inbound ICMP packets.  You can check you logs.

 

Kelli

 

-----Original Message-----
From: William England ( WJ Admin) [mailto:administrator@xxxxxxxxxxxxx]
Sent: Monday, November 17, 2003 11:25 AM
To: [ExchangeList]
Subject: [exchangelist] Emails in OWA

 

http://www.MSExchange.org/

Hi

 

I am running X2K on an SBS2000 machine together with ISA . All is fine
except for OWA. The OWA frames load perfectly except for the windows in
which the emails should appear. It remains white and says loading at the
top.

 

The IIS site on which it runs is not on port 80 due to ISA. Any ideas

 

Any help would be greatly appreciated.

 

William

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Other Internet Software Marketing Sites:
Leading Network Software Directory: http://www.serverfiles.com
No.1 ISA Server Resource Site: http://www.isaserver.org
Windows Security Resource Site: http://www.windowsecurity.com/
Network Security Library: http://www.secinf.net/
Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com
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