Sendmail to Speak at Email Authentication Implementation Summit 2005; Eric Allman, Sendmail CTO and Key Driver behind Email Authentication Initiative, to Lead Session on Latest Standards.

EMERYVILLE, Calif. -- Eric Allman, chief technology officer of Sendmail, Inc., a global provider of email security infrastructure, will be a featured speaker at Email Authentication Implementation Summit 2005 on July 12, 2005 in New York City. The summit is a collaborative initiative to improve the security and reliability of email, and to protect users from threats of spam, phishing and email fraud. The event brings together industry experts, including steering committee members and supporting underwriters such as Sendmail, Microsoft, Yahoo!, Cisco and Symantec.

Allman, author of the first Internet Mail program and an internationally recognized thought leader in email security, will lead the event's general session on the topic "Beyond Sender ID Framework: Cryptography-Based Email Authentication." This presentation will explore the necessary requirements needed for implementing cryptographic solutions, as well as how the technology complements the Sender ID Framework.

Allman has been involved in the progression of email authentication approaches, such as Sender ID (led by Microsoft) and DomainKeys (led by Yahoo!), since the start of the initiative in early 2004. Most recently, Allman has worked closely with Yahoo! and Cisco in bringing together Sendmail and other industry organizations to implement an innovative and collaborative way of improving the security and reliability of email. The combined technology uses elements from Yahoo! DomainKeys and Cisco's Internet Identified Mail system.

Called DomainKeys Identified Mail (DKIM), the technology attaches digital signatures to mail, which then can be checked to ensure that the message was actually sent from the domain in the sender's address. Sendmail, along with other industry leaders, are working with Yahoo! and Cisco to test the performance of DKIM and evaluate how the technology works with existing email infrastructures.

"We are now seeing strong momentum within the industry for collaboration on email authentication," said Eric Allman, Sendmail CTO. "This summit provides us with the ideal forum to educate businesses on best practices in email authentication, bringing us one step closer to meeting our goals."

"The immediate benefits of implementing email authentication solutions are clear," said Craig Spiezle, director of business and industry strategy at Microsoft Corp. "Industry leaders, such as Sendmail, have recognized this and in an unprecedented fashion have joined forces to create innovative technologies, share best practices and collaborate on authentication implementation. This summit historically marks these ongoing efforts to preserve the integrity of email."

About Sendmail, Inc.

Sendmail, Inc. is a global provider of email security infrastructure for large enterprises that depend on email to run their business. With trusted technology and expertise, the company delivers a complete platform for protecting and controlling email from the gateway to the mailbox, including spam and virus protection, perimeter traffic control and sophisticated message processing for compliance. More than half the world's largest enterprises rely on Sendmail products to manage and protect their email networks. Sendmail is headquartered in Emeryville, CA, with offices and distributors in Europe, Asia Pacific and North America. For more information on Sendmail, Inc., visit www.sendmail.com or call 1-87-SENDMAIL or 1-877-363-6245.

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