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Diagnostic Ultrasound Implements Tumbleweed's Firewall And DAS
SecurityProNews
Staff Writer
2004-12-13
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Diagnostic Ultrasound has implemented Tumbleweed's Email Firewall and Dynamic Anti-spam Service (DAS) to intercept spam, invalid email, and viruses automatically.
For Diagnostic Ultrasound, spam had become a significant problem for employees, executives, and IT staff alike. Many users were spending over 20 minutes per day deleting unwanted or offensive email that their previous anti-spam solution was unable correctly to identify and block. Up to 64,000 messages per day were being sent to invalid addresses, causing an additional drain on IT resources, bandwidth and storage. Diagnostic Ultrasound required a robust email security solution that would protect employees and their systems from unwanted content -- accurately blocking messages containing viruses, spam, and invalid addresses at the perimeter while efficiently delivering authentic messages to recipients.
After assessing email security offerings from multiple vendors to determine which solution would provide the most thorough anti-spam relief, Diagnostic Ultrasound selected Tumbleweed's Email Firewall and Dynamic Anti-spam Service, which provided immediate relief. Upon installation, Tumbleweed's product provided immediate benefits, and automated updates ensure continued effectiveness without adding administrative overhead. The installation of Tumbleweed's Email Firewall and Dynamic Anti-spam Service (DAS) resulted in the immediate blocking of 78% of email traffic as unwanted, with virtually no false positives.
Tumbleweed's support team has also far exceeded Diagnostic Ultrasound's expectations, providing excellent support and response times on an on-going basis. To solve the flood of emails being sent to invalid email addresses, Tumbleweed's Global Support organization developed an LDAP procedure to import valid user IDs that allowed real-time user validation from their LDAP directory on their email server.
"Prior to deploying Tumbleweed's Email Firewall and Dynamic Anti-spam service, 70,000 out of 90,000 incoming email messages -- nearly eighty percent -- were unwanted, either because they were spam, or because they were being sent to invalid email addresses," said Arlen Duncan, Director of IT, CISSP Certified for Diagnostic Ultrasound. "We decided to get serious about addressing this issue because it was causing significant drag on our network traffic and impacted employee productivity. Implementing Tumbleweed's Email Firewall and Dynamic Anti-spam service has virtually eliminated our spam problem, and dramatically reduced the amount of email being processed by our server."
"Inbound email sent to invalid email addresses are a big drain on our customers' email servers, taking up valuable processing time, slowing network traffic, and forcing the email server to respond to invalid email addresses," said John Thielens, Chief Technology Officer for Tumbleweed Communications. "Tumbleweed has been able to solve Diagnostic Ultrasound's problem in handling invalid email addresses through a combination of technology and superior technical support."
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SecurityProNews is a daily online and email publication focusing on internet security issues.
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