• eWeek, Friday, January 7, 2011 6:44 AM

To better prevent spam -- and having legitimate messages lost in recipients' spam folders -- Google is adding an extra layer of email authentication for Google Apps. As eWeek reports, all Google Apps users can now sign their outgoing messages with DKIM -- DomainKeys Identified Mail -- so that their mail is less likely to get stopped by recipients' spam filters. DKIM ties a domain name to an email, allowing an organization to take responsibility for a message in a way that can be validated by the person receiving it.

"The capability is being offered at no extra cost and continues Google's longtime-support for e-mail-signing standards," according to eWeek. "As more e-mail providers around the world support DKIM signing, spam fighters will have an even more reliable signal to separate unwanted mail from good mail," Adam Dawes, product manager for Google Enterprise, writes in a blog post. "E-mail authentication is an important mechanism to verify senders' identities, giving users a tool to recognize potential spam messages."

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