Well, the three serve different purposes :)
1. The Barracuda is set to a low threshold, where it allows more spam than most would allow. In essence, it still stops 95% of the spam that was previously actually hitting our Exchange server from ever reaching it (about 4,000/day), but rarely if ever triggers a false positive. We also block attachments with the Barracuda. 2. Ninja is set to kind of fine-tune the sorting of the remaining spam that gets through the Barracuda. It gives users Spam folders that they can easily look through from within Outlook, and they're used to it. 3. ScanMail is what actually does any virus scanning on the IS. So, it SOUNDS like a bunch of filtering, but probably isn't, in reality :) Evan ________________________________ From: HELP_PC [mailto:[EMAIL PROTECTED] Sent: Tue 7/29/2008 12:17 AM To: MS-Exchange Admin Issues Subject: R: Corrupted files attached to emails Not a bit much filtering ? GuidoElia HELPPC ________________________________ Da: Evan Brastow [mailto:[EMAIL PROTECTED] Inviato: lunedì 28 luglio 2008 23.22 A: MS-Exchange Admin Issues Oggetto: RE: Corrupted files attached to emails Hi Martin, Good point. We do have a Barracuda in front of the email server, We also have Trend Micro ScanMail on the server, as well as Ninja. I suppose there could be some issues there... Thank you, Evan From: Martin Blackstone [mailto:[EMAIL PROTECTED] Sent: Monday, July 28, 2008 5:01 PM To: MS-Exchange Admin Issues Subject: RE: Corrupted files attached to emails Evan, What do you have in front of the Exchange server? Any kind of AV or antispam gateways? AV running on the Exchange server? Exchange actually corrupting attachments itself is rare if ever. Other components in route are more often the culprit. From: Evan Brastow [mailto:[EMAIL PROTECTED] Sent: Monday, July 28, 2008 1:54 PM To: MS-Exchange Admin Issues Subject: Corrupted files attached to emails Hi folks, Got a weird problem that's been going on all month. I've talked to my ISP about this, and I'm not sure they're going to come through with anything, so I wanted to bounce it off you guys as well. My company works with a lot of art files... AI files (Adobe Illustrator) and TIFF files are the main ones. The problem is that a high percentage of them lately seem to be unopenable when they arrive. The companies that are sending them are saying they can open them on their end, but they seem corrupted when we go to open them here. Over the weekend, I did an offline defrag, just to clear out any gunk (that's a technical term, I know) that might be causing it. Anyone know how to go about troubleshooting something like this? Exchange 2003 SP2, clients are Outlook 2003 and 2007. Thanks very much J Evan ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
