RE: Gateway for Exchange 2003
- From: "John Tolmachoff \(Lists\)" <johnlist@xxxxxxxxxxxxxxxxxxx>
- To: "'[ExchangeList]'" <exchangelist@xxxxxxxxxxxxx>
- Date: Tue, 6 Sep 2005 09:44:47 -0700
Youch, a product that is supposed to scan for viruses and spam has problems
with some messages that are formatted in such a way so as to cause a problem
with software that is supposed to scan them, what will they think of next?
(Yes, tongue firmly planted in check as I am well aware of formatting issues
and vulnerabilities that are specifically designed to "fool" or otherwise
cause problems with the software that is supposed to be scanning it and
including causing problems whereby Outlook then opens it and walla, you have
spam or a virus.)
And yes, the software I use checks for those problems and catches them.
John T
eServices For You
-----Original Message-----
From: Michael B. Smith [mailto:michael@xxxxxxxxxx]
Sent: Tuesday, September 06, 2005 9:23 AM
To: [ExchangeList]
Subject: [exchangelist] RE: Gateway for Exchange 2003
http://www.MSExchange.org/
The GFI knowledge base shows known issues with GFI and certain types of
malformed messages.
_____
From: John Tolmachoff (Lists) [mailto:johnlist@xxxxxxxxxxxxxxxxxxx]
Sent: Tuesday, September 06, 2005 12:19 PM
To: [ExchangeList]
Subject: [exchangelist] RE: Gateway for Exchange 2003
http://www.MSExchange.org/
The IIS SMTP service can handle hundreds of thousands of messages per day
depending on hardware, so I doubt that is the cause of the problem. I would
first look at DNS issues, including timeouts and cache problems.
Next time it happens, try clearing the DNS cache on the DNS servers that
both IIS is using as well as the GFI products.
John T
eServices For You
-----Original Message-----
From: Chris Wall [mailto:Chris.Wall@xxxxxxxxxxxxxxxxxxx]
Sent: Tuesday, September 06, 2005 6:57 AM
To: [ExchangeList]
Subject: [exchangelist] Gateway for Exchange 2003
http://www.MSExchange.org/
Hello all,
Our Exchange systems forward all mail to a 'Smart Host' that resides in
our DMZ. The Smart Host is nothing more than a Windows 2003 Server with IIS
SMTP services and GFI Mail Essentials and Mail Security.
As far as blocking/preventing SPAM and Virus' mail - it works GREAT. My
problem is that the SMTP service seems to flake out 2 to 3 times a week here
lately. The SMTP service is still running and receiving mail from Exchange,
and it receives mail from the internet, but the queues will back up and not
deliver the mail at all. A reboot of the server will get the server to
process mail again and flush out the queues. Restarting the services does
nothing to assist and there are no events in any of the logs.
Can anyone point me to any information that indicates what mail volumes
the standard IIS SMTP mail service can handle? I want to verify that we
are not overwhelming the service with too much volume.
Regards,
Chris
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