RE: RES: SMTP Message Screener

Hi Alexander,

No, no no!  The Outlook client was on an external network. It was
configured to use the published IIS SMTP Server/Message Screener as its
SMTP server. So, then incoming mail was being sent from the external
Outlook client, to the published IIS SMTP server, which is configured
relay messages to the remote domain to the internal Exchange Server. Of
course, the message was not relayed because the .vbs was blocked and
placed the BADMAIL folder.

I haven't tested it yet by having an external Exchange Server forward
the mail to the published IIS SMTP server. Ran out of time :-)

Thanks!

Tom
www.isaserver.org/shinder


-----Original Message-----
From: Alexander Rayborn [mailto:alexander@xxxxxxxxxxxxxxxx] 
Sent: Saturday, December 29, 2001 8:50 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: RES: SMTP Message Screener

http://www.ISAserver.org


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> 

------------------------------------------------------
You are currently subscribed to this ISAserver.org Discussion List as:
tshinder@xxxxxxxxxxxxxxxxxx
To unsubscribe send a blank email to $subst('Email.Unsub')

Other related posts: