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Exchange 5.5 blocking Extensions

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by wroming

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I have windows NT server 4.0 with exchange 5.5 and norton anti-virus protection installed. I have the norton scanning for extensions such as .bat, .exe and double extensions but there is no way of blocking them. So my question is this is there a wayin exchange server 5.5 to block extensions and if so where exactly do I go in the config to do this. Please email me with your answer to wroming@ci.killeen.tx.us and in your techrepublic answer just type see email and I will rate your answer as quickly as possible. Thank you and have a nice day.

3 replies

by [_rick_>

In Exchange 5.5 there is no way of blocking attachments, you can block known domains and IP addresses, but the ability to block attachments is not there.

If your positive that the Symantec AV for Exchange will not allow you to block individual attachments, then I would recommend changing applications and /or installing a Firewall Scanning product that sits between your SMTP server and the Internet. This product would scan all SMTP traffic and remove or block the questionable attachments coming across.

Also this would be the best way of stopping or at least preventing 'scripting' in HTML messages from causing damage or denying service.

Other products on the market that do provide this granualarity:

Trend Scanmail for Exchange
Trend Interscan products
Antigen Antivirus
NEMX Power Tools for Exchange
MailMarshal
Mail Essentials

Good luck
Rick

by wroming

I was able to find out where symantec puts there blocks you have to do a reg hack in order for it to work....took me forever to figure that out...directions do not say anything about it. Thanks for you input though.

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