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In a conference call on Monday, June 20, 2005 Microsoft Corporation announced that they will be changing the way they handle sender identification via email with its MSN and Hotmail properties. Beginning Wednesday June 22, MSN and Hotmail implemented a change in the user interface of their email applications such that emails not authenticated by Sender ID will display a warning message to the end user (see screenshot below).
The Sender ID Framework is an email authentication technology protocol that helps address the problem of spoofing and phishing by verifying the domain name from which email is sent. Sender ID validates the origin of email by verifying the IP address of the sender against the purported owner of the sending domain.
EmailLabs, one of the first Email Service Providers to adopt Sender-ID authentication, applauds Microsoft’s move to encourage adoption of authentication, and has provided instructions and professional services to aid clients in setting up valid Sender ID records for all outgoing email.
At this time, MSN/Hotmail’s junk filters will not be taking additional steps against unauthenticated email. Microsoft advised that around November 2005, unauthenticated email will be diverted to the Junk Folder.
Additionally, similar UI and Filter changes are also being included in the upcoming service packs for Outlook 2003 and the Exchange mail server.
For more information on Sender-ID and how to set it up, please visit Microsoft's Sender ID Resources Web site.
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