For best results with Purdue’s new email scanning system remember three words: review, release, safelist

Review Spam Quarantine Notification emails, release emails you want, safest senders whose email you want to get.Faculty, staff and students may notice something new in their email inboxes, a daily message with the subject line Spam Quarantine Notification from Cisco Quarantine.

The once-a-day quarantine digest messages are from Purdue’s new email scanning system, which ITaP implemented over the summer. The new system gives everyone a say in whether bulk email makes it directly into their inboxes, and that makes it important to remember three words: review, release, safelist.

The Spam Quarantine Notification messages provide an easy way for users to review emails quarantined by the scanning system, release emails they actually want and safelist senders whose email they want to go straight through to their inboxes in the future.

This includes messages from campus organizations that do email marketing to the Purdue community, such as Purdue Athletics and Convocations. It also can include messages from outside companies recruiting students at Purdue and emailing them with job or internship information. In both cases, these messages may be captured and quarantined by the new system. Which makes it a good idea to check those daily Spam Quarantine Notification messages from Cisco Quarantine.

  • If you see an email you want, click on the Release link next to it in the quarantine message. This sends the mail to your inbox.
  • Clicking the Release link also takes you to a web page where you can click the Add Sender to Safelist button to safelist emails from that sender.
  • In addition, you can add a person or organization to your safelist by clicking the "your email quarantine" link atop any quarantine message and choosing Options and Safelist from the pull-down menu on the right of the resulting web page. In the safelist box that appears, enter the sender’s email address, for example or, and click the Add to List button.
  • If you safelist, it covers all senders with a email address.

The new scanning system drastically reduces the amount of unwanted email Purdue users see. In its first month alone, it stopped delivery of more than 118 million messages from known junk email sources. It also quarantined nearly 9 million obvious marketing pitches and other bulk emails.

More importantly, it halted more than 3.2 million spam messages, more than 2,400 carrying computer viruses and more than 2,500 carrying other kinds of malicious software. It also stopped more than 152,000 emails containing links to malicious websites.

"We’ve also had zero Purdue accounts compromised by mail flowing through the new scanning system," says Greg Hedrick, Purdue’s chief information security officer. "That significantly reduces the threat of Purdue account information being used for identity theft or to send spam, which can cost an employee or student whose account information is stolen and damage the University’s reputation."

For more information about Purdue’s new email scanning system, see ITaP’s FAQ. Questions: contact or 49-44000.

Writer: Greg Kline, science and technology writer, Information Technology at Purdue (ITaP), 765-494-8167,

Last updated: October 10, 2017

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