RE: HTTP Attachment Blocking of Exchange ActiveSync and RPC over HTTPS

  • From: "Jim Harrison" <Jim@xxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Wed, 25 Jan 2006 19:12:24 -0800

Yep - IIRC, this is a property of the user's account Exch settings.

-------------------------------------------------------
   Jim Harrison
   MCP(NT4, W2K), A+, Network+, PCG
   http://isaserver.org/Jim_Harrison/
   http://isatools.org
   Read the help / books / articles!
-------------------------------------------------------
 

-----Original Message-----
From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx] 
Sent: Wednesday, January 25, 2006 19:07
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: HTTP Attachment Blocking of Exchange ActiveSync and RPC 
over HTTPS

http://www.ISAserver.org

Youza! I think the managing for attachment control has to be done with the RCP, 
though :)

Thomas W Shinder, M.D.
Site: www.isaserver.org
Blog: http://spaces.msn.com/members/drisa/
Book: http://tinyurl.com/3xqb7
MVP -- ISA Firewalls
**Who is John Galt?**

 

> -----Original Message-----
> From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx]
> Sent: Wednesday, January 25, 2006 9:03 PM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: HTTP Attachment Blocking of Exchange ActiveSync 
> and RPC over HTTPS
> 
> http://www.ISAserver.org
> 
> ..depends on what you call the "application".
> Outlook is mangling this data via Windows RPC APIs.
> RPC is mangling this same data via WinHTTP APIs.
> WinHTTP is mangling this same data over SSL-tunneled HTTP.
> 
> I got a handle on this the hard way, lemmetellya!
> 
> -------------------------------------------------------
>    Jim Harrison
>    MCP(NT4, W2K), A+, Network+, PCG
>    http://isaserver.org/Jim_Harrison/
>    http://isatools.org
>    Read the help / books / articles!
> -------------------------------------------------------
>  
> 
> -----Original Message-----
> From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx]
> Sent: Wednesday, January 25, 2006 18:37
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: HTTP Attachment Blocking of Exchange ActiveSync 
> and RPC over HTTPS
> 
> http://www.ISAserver.org
> 
> OK, yes I know its really an HTTP connection, but the application 
> itself it not using HTTP. That's what I meant :-P~~
> 
> Thomas W Shinder, M.D.
> Site: www.isaserver.org
> Blog: http://spaces.msn.com/members/drisa/
> Book: http://tinyurl.com/3xqb7
> MVP -- ISA Firewalls
> **Who is John Galt?**
> 
>  
> 
> > -----Original Message-----
> > From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx]
> > Sent: Wednesday, January 25, 2006 8:22 PM
> > To: [ISAserver.org Discussion List]
> > Subject: [isalist] RE: HTTP Attachment Blocking of Exchange
> ActiveSync
> > and RPC over HTTPS
> > 
> > http://www.ISAserver.org
> > 
> > Sez hoo? 
> > IP contains TCP contains SSL contains HTTP contains RPC...
> > ..and a bag o' chips...
> > -------------------------------------------------------
> >    Jim Harrison
> >    MCP(NT4, W2K), A+, Network+, PCG
> >    http://isaserver.org/Jim_Harrison/
> >    http://isatools.org
> >    Read the help / books / articles!
> > -------------------------------------------------------
> >  
> > 
> > -----Original Message-----
> > From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx]
> > Sent: Wednesday, January 25, 2006 17:48
> > To: [ISAserver.org Discussion List]
> > Subject: [isalist] RE: HTTP Attachment Blocking of Exchange
> ActiveSync
> > and RPC over HTTPS
> > 
> > http://www.ISAserver.org
> > 
> > Hi Keith,
> > 
> > You probably can do it with ActiveSync, but not RPC/HTTP
> because it's
> > not really an HTTP connection.
> > 
> > HTH,
> > Tom
> > 
> > Thomas W Shinder, M.D.
> > Site: www.isaserver.org
> > Blog: http://spaces.msn.com/members/drisa/
> > Book: http://tinyurl.com/3xqb7
> > MVP -- ISA Firewalls
> > **Who is John Galt?**
> > 
> >  
> > 
> > > -----Original Message-----
> > > From: Keith Irby [mailto:irbykh@xxxxxxxxxxx]
> > > Sent: Wednesday, January 25, 2006 11:34 AM
> > > To: [ISAserver.org Discussion List]
> > > Subject: [isalist] HTTP Attachment Blocking of Exchange
> > ActiveSync and
> > > RPC over HTTPS
> > > 
> > > http://www.ISAserver.org
> > > 
> > > Is it possible to use ISA to do the following below tasks?  
> > > Perhaps with the
> > > HTTP Filter, by blocking the extension?  I'm thinking about
> > trying the
> > > following method:  Right click your EAS rule, choose HTTP Filter 
> > > 'Configure HTTP', and then click the Extensions tab.
> > Anyone have any
> > > thoughts on this?
> > > 
> > > ISA 2004's ability to: 
> > > Attachment blocking in RPC over HTTPs
> > > 
> > > Attachment blocking in exchange active Sync
> > > 
> > > Thanks,
> > > 
> > > Keith
> > > 
> > > 
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