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We use Exchange 2003 (SP2) with Trend Micro ScanMail for SPAM/Virus Filtering. We have a real problem with SPAM getting through the filter! I noticed in the real time ScanMail log it show messages found at SMTP. &nbsp;Does this mean Exchange is accepting email from SMTP? I pasted two examples below.. <br />
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4/6/2007 12:08:33 PM - Message from &quot;ha-melody.com@vadivorceat<wbr />torney.com<wbr />&quot; found at &quot;SMTP&quot; [total 1 recipient(s)] <br />
4/6/2007 12:06:25 PM - Message from &quot;noreply@gearedon.com&quot; found at &quot;SMTP&quot; [total 1 recipient(s)] 
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We use Exchange 2003 (SP2) with Trend Micro ScanMail for SPAM/Virus Filtering. We have a real problem with SPAM getting through the filter! I noticed in the real time ScanMail log it show messages found at SMTP.  Does this mean Exchange is accepting email from SMTP? I pasted two examples below.. 

4/6/2007 12:08:33 PM - Message from "ha-melody.com@vadivorceattorney.com" found at "SMTP" [total 1 recipient(s)] 
4/6/2007 12:06:25 PM - Message from "noreply@gearedon.com" found at "SMTP" [total 1 recipient(s)] 

Exchange 2003 with ScanMail SPAM Filter possible relaying

Operating system security (OS security) is the process of ensuring OS integrity, confidentiality and availability. OS security refers to specified steps or measures used to protect the OS from threats, viruses, worms, malware or remote hacker intrusions. OS security encompasses all preventive-control techniques, which safeguard any computer assets capable of being stolen, edited or deleted if OS security is compromised, including authentication, passwords and threats to systems and programs.

OS Security

Security is the protection of information systems from theft or damage to the hardware, the software, and the information on them, as well as from disruption or misdirection of the services they provide. The main goal of security is protecting assets, and an asset is anything of value and worthy of protection.  Information Security is a discipline of protecting information assets from threats through safeguards to achieve the objectives of confidentiality, integrity, and availability or CIA for short. On the other hand, disclosure, alteration, and disruption (DAD) compromise the security objectives.

Security

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.