Doug, In our case, we have a dedicated Internet mail gateway server, which does the gateway virus scanning and Spam filtering. I have not seen any performance issues at all. We block over 50,000 spams a day. HTH. Regards, Raj Periyasamy Systems Administrator MCSE(Messaging), CCNA -----Original Message----- From: Douglas M. Long [mailto:dlong@xxxxxxxxxxx] Sent: Friday, May 27, 2005 12:33 AM To: [ExchangeList] Subject: [exchangelist] RE: Spam Problem http://www.MSExchange.org/ Just wanted to say the added benefit of a gateway spam solution (such as barracuda) decreases A LOT of load on your server, whereas an on-server solution would increase it. The benefit of such things is underrated. -----Original Message----- From: Periyasamy, Raj [mailto:Raj.Periyasamy@xxxxxxxxxxxx] Sent: Wednesday, May 25, 2005 1:15 PM To: [ExchangeList] Subject: [exchangelist] RE: Spam Problem http://www.MSExchange.org/ Hi Sanjay, I have found GFI Mailessentials to be a perfect product with good support, and the cost is unbelievably low. We paid under $700 for unlimited user license. In your case, you could get a less number of user license and would be a lot cheaper. GFI ME 10.1 does a great job in blocking more than 98% of spams for us. GFI ME has Bayesian, Directory harvest, Blacklist, SPF, keyword and Header checking filters. You can even download the evaluation for up to 30 days from www.gfi.com. HTH. Regards, Raj Periyasamy Systems Administrator MCSE(Messaging), CCNA -----Original Message----- From: Sanjay Choudhary [mailto:SChoudhary@xxxxxxxxxxxxxxxxx] Sent: Wednesday, May 25, 2005 12:30 AM To: [ExchangeList] Subject: [exchangelist] Spam Problem Importance: High http://www.MSExchange.org/ Hi All, We have exchange 2003 on windows 2003 server with 150 mailboxes .We are facing spam problem from both inside and outside and looking for Anti-spam software for our Exchange.We don't want take Antispam software for all mailboxes because of high cost.Can anyone suggest me a software which can protect spam for all mailboxes but uses only one user license. Thanks in Advance. Waiting for sincere advice. 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