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Auto-Preview in Outlook
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Auto-Preview in Outlook - 28.Feb.2008 9:17:38 AM
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rich.wenger
Posts: 5
Joined: 28.Feb.2008
Status: offline
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Hi All,
Our orgainzation uses Outlook 2007 with Exchange Server 2003. Our anti-virus solution for our Exchanger Server is Symantic Anti-virus for Exchange, we're using Brightmail for anti-spam. All client PC's are running Symantec Corporate Antivirus. Assuming anti-virus is correctly working is there a significant threat to client PC's using Outlook with Auto-Preview turned on?
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RE: Auto-Preview in Outlook - 28.Feb.2008 10:36:55 AM
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t0ta11ed
Posts: 274
Joined: 2.Feb.2007
From: Mars
Status: offline
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This was more of a problem in the past than it is today. With the AV coverage you have I wouldn't think that'd be too much of a problem. I have users that use the preview pane without any problems, although there is still the possibility of a threat reaching the desktop this way. The downside to this is that something can still reach the endpoint, even though the local AV may stop it. You should also take into account anything that may not be detected by the AV solution, but this would typically be zero-day types that the AV has no defiinitions for.
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RE: Auto-Preview in Outlook - 28.Feb.2008 10:43:10 AM
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rich.wenger
Posts: 5
Joined: 28.Feb.2008
Status: offline
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Hi, and thanks for your reply. I would think that anything that got past the server/desktop anti-virus solution the user would think was safe to open anyway and the net effect would be the same - the virus/malware would be launched? Obviously this might not be the case in an SMTP/POP3 environment.
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RE: Auto-Preview in Outlook - 28.Feb.2008 10:45:38 AM
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t0ta11ed
Posts: 274
Joined: 2.Feb.2007
From: Mars
Status: offline
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You're right, but with the preview pane some threats can automatically download/execute without the user doing anything.
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RE: Auto-Preview in Outlook - 28.Feb.2008 6:17:30 PM
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Sembee
Posts: 3499
Joined: 17.Jan.2008
From: Somewhere near London, UK
Status: offline
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You could lower the risk if you dropped the Symantec products and used something that works. When spammers are testing their "product" they test it against the market leader - Symantec.
If the message with the infection gets past your gateway, thats it. The user will open the message anyway. I use the preview pane all the time, and I have not had a single infection of my machines (and I view some very dodgy stuff). The preview pane has had its security tightened quite considerably, particularly in Outlook 2007.
However that doesn't take away the main risk, which is the user. With all the best security products in the world if a clueless user clicks on everything or adds the spammer to their safe senders list, then they will have problems.
Simon.
_____________________________
Simon Butler,
Exchange MVP
Blog: http://www.sembee.co.uk/
Web: http://www.amset.info/
In the UK? Hire me: http://www.amset.co.uk/
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RE: Auto-Preview in Outlook - 28.Feb.2008 6:50:39 PM
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t0ta11ed
Posts: 274
Joined: 2.Feb.2007
From: Mars
Status: offline
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I personally find the Preview Pane annoying and rarely use it. I did have one user that got infected with something through it though, however the local anti virus caught it and I was able to disconnect the machine before it spread while I removed it. Only one incident though.
_____________________________
Invasion Plans - http://dev.marzopolis.com
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RE: Auto-Preview in Outlook - 29.Feb.2008 10:59:35 AM
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rich.wenger
Posts: 5
Joined: 28.Feb.2008
Status: offline
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As far as SPAM goes we've had tremdous success with Symantec Brightmail. With very little administration we've managed to reduce SPAM inbound to our Exchange server to an insignificant amount.
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RE: Auto-Preview in Outlook - 29.Feb.2008 11:04:30 AM
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t0ta11ed
Posts: 274
Joined: 2.Feb.2007
From: Mars
Status: offline
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Interesting, I've managed to do the same thing with just the built in control in Exchange.
_____________________________
Invasion Plans - http://dev.marzopolis.com
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RE: Auto-Preview in Outlook - 29.Feb.2008 3:13:41 PM
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rich.wenger
Posts: 5
Joined: 28.Feb.2008
Status: offline
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Hmmm, I'm wondering how many users you're supporting and still able to control SPAM with only Exchange's native tools?
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RE: Auto-Preview in Outlook - 29.Feb.2008 3:21:06 PM
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t0ta11ed
Posts: 274
Joined: 2.Feb.2007
From: Mars
Status: offline
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Small user base, but the controls work well so I don't see it being a problem scaling out. We migrated from Exch 2k3 to 2k7, implmented the anti spam controls and our spam intake went to almost nothing.
_____________________________
Invasion Plans - http://dev.marzopolis.com
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RE: Auto-Preview in Outlook - 29.Feb.2008 4:25:11 PM
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Sembee
Posts: 3499
Joined: 17.Jan.2008
From: Somewhere near London, UK
Status: offline
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The built in applications can work very well for many people, and for others they can be close to useless. It very much depends on the type of spam you receive AND the type of messages that you send and receive. I have clients who use IMF and that is with great success, others we have had to hunt around for something that works.
However I usually find that antivirus vendors make poor antispam products. The classic sign of that is when they have to go and buy something else and then proceed to ruin it. Symantec have a track record in this, almost as bad as CA.
Simon.
_____________________________
Simon Butler,
Exchange MVP
Blog: http://www.sembee.co.uk/
Web: http://www.amset.info/
In the UK? Hire me: http://www.amset.co.uk/
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RE: Auto-Preview in Outlook - 29.Feb.2008 4:27:26 PM
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t0ta11ed
Posts: 274
Joined: 2.Feb.2007
From: Mars
Status: offline
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True there. Most of the products I've used have totally sucked. The only one other than the baked in Exch controls I liked was Cloudmark.
_____________________________
Invasion Plans - http://dev.marzopolis.com
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RE: Auto-Preview in Outlook - 6.Mar.2008 8:00:28 AM
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rich.wenger
Posts: 5
Joined: 28.Feb.2008
Status: offline
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Our organization supports around 150 users and our SPAM situation was out of control until we brought in Brightmail. However, I'm still have my doubts about a serious threat from using the Outlook Auto Preview feature. Again I can only imagine any post arriving in the user's inbox would be assumed safe to open anyway?
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