Stripping Attachments

[Calin]

Is there any way in Exchange 5.5 to strip attachments from e-mail messages based on the extension?

I would prefer to be able to strip ALL attachments EXCEPT for a specific list of allowed extensions.

TIA
--
Toby Herring
Software Architects, Inc.
MCDBA, MCSD

 

[Xybertron]

Nav 2.1 for Exchange does it via reg keys. Dan
Microsoft Exchange Support @ Microsoft

 

[Calin]

Hmm. I have NAV 7.5 Corporate, including the Exchange version. Do you know if it also allows stripping of attachments?

I know, we're getting off-topic a bit, here.

Thanks
--
Toby Herring
Software Architects, Inc.
MCDBA, MCSD

 

[Zelandakh]

Pretty sure it doesn't, but it does scan all attachments for viruses (selectively if you want).

Won't that cover what you want to do?

 

[Calin]

Considering that the Goner virus proliferated yesterday morning beginning at around 8:30 AM Eastern time, and SARC didn't release a new set of virus definitions until after 5:00 PM Eastern time, I would have to say "No." The AV software is absolutely useless at detecting new viruses.

However, the ability to strip attachments with unauthorized file extensions would have completely eliminated any and all possibility that this virus would have gotten through my e-mail server and onto my clients.

As it is, the only reason we escaped infection is because we shut the mail server down within about 5 minutes of the initial e-mail being received. The mail server stayed off all day long.

For a business whose primary means of communication is e-mail, this is not an acceptable solution to this problem.
--
Toby Herring
Software Architects, Inc.
MCDBA, MCSD

 

[ShackDaddy]

I use NAV 7.5 and used the registry settings to block the following attachments: vbs, exe, bat, cmd, pif, scr.

Because of this policy, I've avoided pretty much every emai-based virus.

The blocking is configured in:
HKLM\Software\Symantec\NAVMSE\2.1\BlockingPolicy\Attachment

As far as reversing the policy to mimic a firewall's "block all except..." policy, I don't think NAV supports that.

ShackDaddy

 

[Xybertron]

That is the reg key for Nav 2.1 for Exchange hence the key 2.1

This is not E2K SP1 friendly AFAIK and is for 5.5 last I heard. Dan
Microsoft Exchange Support @ Microsoft

 

[Calin]

Thanks, guys. That addresses my problem well enough.

NAVMSE 2.1 may be (probably is) the version of the Exchange client that comes with NAV 7.5 Corporate.

It'll be awhile before we upgrade to Exchange 2k, so that's not going to be an issue.

Thanks again --
Toby Herring
Software Architects, Inc.
MCDBA, MCSD