RE: RES: SMTP Message Screener

Tom...

The bug won't work from your own internal network because, as you say,
RPC doesn't use SMTP.

Send me an email address privately that I can send a .vbs file to from
my Outlook/Exchange... I'll bet you money that the message gets through.

--Alexander

> -----Original Message-----
> From: Thomas W. Shinder [mailto:tshinder@xxxxxxxxxxxxxxxxxx] 
> Sent: Saturday, December 29, 2001 12:43 AM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: RES: SMTP Message Screener
> 
> 
> http://www.ISAserver.org
> 
> 
> Hi Alexander,
>  
> I tested this out this evening to see what the deal is. I 
> configured Outlook 2002 to be a SMTP/POP3 mail client. I 
> configure the SMTP service on the ISA Server itself to act as 
> a mail relay to the internal Exchange 2000 server. I 
> configured the Message Screener on the IIS SMTP service 
> running on the ISA Server itself.
>  
> When I sent a message from the Outlook POP/SMTP client with a 
> .vbs file (configured to be blocked by the Message Screener 
> on the ISA Server itself), the file was indeed blocked and I 
> found it in the BADMAIL folder. I also tried it with Outlook 
> Express, and it worked fine there too.
>  
> My question is, are you configuring the Outlook client to be 
> a RPC client and allowing it to access the Exchange Server 
> via an RPC Server Publishing Rule? If that's the case, then 
> the Message Screener won't work, because SMTP is not being 
> used. Otherwise, as long as you use the SMTP relay (which I 
> ALWAYS recommend, never would I ever put the Message Screener 
> on the Exchange Server), it works great.
>  
> HTH,
> Tom
> www.isaserver.org/shinder <http://www.isaserver.org/shinder>

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