EA DomainKeys/DKIM for IIS SMTP Service and Exchange Server 2.1 Released

Platform: Windows 2000 or later (x64 is supported) Date: Oct 2009
IIS SMTP Service or Exchange Server 2000/2003/2007 installed
Exchange 2007 requires SP1 rollup 9 or SP2 installed
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With this tool, your IIS SMTP Service and Exchange Server will be enabled to add DomainKeys/DKIM signature to outgoing emails from specified domain(s), which verify the DNS domain of an email sender and the message integrity, and in turn preventing the emails from your domain from being flagged as spam or junk mail by email servers which have Domainkeys/DKIM implemented (such as Hotmail, Yahoo mail and Gmail).

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Why DomainKeys/DKIM is important to your Exchange Server

Email fraud is one of the biggest threat in the Internet world. To combat this, email authentication standards known as Domainkeys/DKIM were developed. DKIM allows an organization to generate cryptographic signatures on outgoing email to certify the origin of a message as coming from an authorized server for that domain and the integrity of email contents, which consequently is very useful for anti-phishing.

As Domainkeys/DKIM becomes more widely deployed, particularly in webmail services, financial sectors and e-commerce firms, if your domain has no DKIM implemented, outbounce emails from your domain are likely be flagged as spam or junk mail by the email servers which have Domainkeys/DKIM enabled (such as Hotmail, Yahoo mail and Gmail).

DomainKeys/DKIM for IIS SMTP Service and Exchange Server Features List

DomainKeys	Signing Algorithms: rsa-sha1 Canonicalization Algorithm: simple/nofws	RFC 4780
DKIM	Signing Algorithms: rsa-sha1 Canonicalization Algorithm: simple/relaxed	RFC 4781