|Title||Start Date & Time||End Date & Time|
|Service Issue Updated: Campus Wireless||Monday, February 12, 2018 - 10:05am|
|Service Issue Updated: Northstar||Thursday, May 24, 2018 - 11:28am|
|Service Maintenance Scheduled: Campus Solutions & Portals||Sunday, June 24, 2018 - 6:00am||Sunday, June 24, 2018 - 6:00pm|
|Service Maintenance Scheduled: Network Services in Multiple Buildings||Tuesday, June 26, 2018 - 5:00am||Tuesday, June 26, 2018 - 7:30am|
|Service Maintenance Scheduled: Networks in Farrand, Cockerell, Sewall, Brackett, Aden||Monday, June 25, 2018 - 8:00am||Thursday, June 28, 2018 - 5:00pm|
OIT servers regularly process more than 10 million incoming email messages per day. Using an extensive multi-tiered filtering solution, OIT is able to catch more than 75% of incoming messages categorized as spam or otherwise malicious messages. As part of this process, OIT servers scan messages for malicious content (URLs, viruses and certain file types) and remediate them.
As of September 2017, OIT will be scanning messages for URLs with poor reputations in an effort to protect the campus from malicious web links. When suspect or malicious URLs are found, you will either recieve a warning heading in the email or a notification webpage when you click a link.
If the campus servers determine a URL is malicious, the URL will be removed from the message and a warning heading added to the email similar to this:
In other instances, if the campus servers are unable to definitively determine if a URL is malicious, it may still be considered suspect and routed through Cisco, an external security service, for further evaluation. If Cisco finds malicious activity, the URL may be rewritten and you will receive a notice when attempting to click the URL:
Starting April 2018, Outbreak Filters will be enabled for all campus email accounts. Outbreak filters perform a threat assessment of inbound and outbound messages and temporarily quarantine suspicious messages. Once outbreak rules from security vendors are received, messages are automatically released to the recipient. Users may notice a slight time delay when receiving messages that have been quarantined, but otherwise should not expect any disruption.
The maximum delay users may see are as follows:
It is possible that some messages remain suspicious when released from quarantine yet do not rise to a level deemed an outright threat. In these cases, emails will have “[SUSPICIOUS MESSAGE]” added to the beginning of the subject line (this process is similar to what happens with messages identified as “[POTENTIAL SPAM]”). In most cases, messages labeled “[SUSPICIOUS MESSAGE]” are considered spam by most people. In the cases of false positives, the sending address may be added to the campus safe list.
When a website is malicious or has been compromised, it will likely be blocked by the new filtering measures. To reduce the incidence of false positives, OIT has proactively whitelisted websites that are commonly referenced in communication from our campus. If you have questions or find a URL that is being blocked but has a legitimate business function for our campus, please contact the IT Service Center at firstname.lastname@example.org or at 303-735-4357 (5-HELP from an on-campus phone) for assistance.
The Cisco Email Reporting Plug-in enables Outlook for Windows users to submit feedback to Cisco about unsolicited and unwanted email messages, such as spam, viruses, phishing, and marketing messages. Cisco uses this feedback to update its filters to stop unwanted messages from being delivered to your inbox.
You can also report false positives, which are legitimate email messages that are marked as spam, to Cisco by using the Not Spam button. Cisco uses reports about false positives to adjust its spam filters to avoid misclassifying legitimate email in the future. Any valid email can be reported as Not Spam and will help to increase filter efficacy.
This plug-in provides a convenient interface that enables you to submit feedback by using toolbar buttons and right-click context menus. When you report a message, a dialog box appears indicating that the message was submitted. The message data that you submit is used by automated systems to improve the Cisco filters. By submitting message data, you help to reduce the volume of unsolicited email in your inbox.
If you would like to have this plug-in installed, call the IT Service Center (303-735-4357 or 5-HELP from an on-campus phone), or email email@example.com.
Many virus-infected emails will be captured before they are sent out from campus or before they are delivered to your email account, however, all email users must still be vigilant to limit the spread of viruses. OIT recommends several antivirus solutions for CU Boulder faculty, staff, student staff, and students. Visit the Antivirus page for for detailed information regarding CU Boulder's recommended antivirus solutions and to choose the solution that best fits your needs and specifications.