This page contains answers to common questions about the Spam Control service.
We encourage all University affiliates to use the campus mail services to ensure all University email is properly delivered. In addition, by law your @illinois.edu business email is subject to audit. If you use your personal email account for @illinois.edu business then that account is also subject to audit.
Forwarding or redirecting breaks DMARC; we cannot control what happens to email when it is forwarded or redirected to another email provider. We've seen cases where email sent to @illinois.edu and redirected to another domain, e.g. @yahoo.com, and was tagged as spam by that domain. We are not responsible for missing mail to your personal email after it has been forwarded.
Controlling Spam and Phishing Attempts
You can access the NEW web interface for all digest and spam policy options at: https://go.illinois.edu/spamdigest.
Users can look at the message subject headers to determine their content, and decide which actions they want to apply to the messages.
Log in with your Campus NetID and password.
The Web Interface allows you to view your quarantined messages and change your spam policy using a web browser.
The following chart illustrates the email delivery differences in the spam policies:
|Cautious||Cautious Plus||Aggressive||No Quarantine||Cautious Plus, No Quarantine|
|Personal Spam Policies|
|Not Spam (spamscore=0-49)||delivered||delivered||delivered||delivered||delivered|
|Possible Spam (spamscore=50-79)||quarantined||quarantined||quarantined||delivered||delivered|
|Likely Spam (spamscore=80-98)||quarantined||quarantined||deleted||deleted||delivered|
|Certain Spam (spamscore=99-100)||quarantined||deleted||deleted||deleted||deleted|
Select a policy that best meets your needs. See the KB article: Spam Scoring System for more details about how email is scored.
Add email addresses or domains to your Safe or Block lists.
A: Spam Control will not change the content of your email messages, but it will add information to the email headers. Headers contain information about the sender and how the message was routed to your email client. Headers usually aren't visible to you unless you changed your email client's preferences to display them.
A: Spam Control adds the following tags to the headers of all messages:
X-Spam-Score: A score from 0 to 100 based on increasing likelihood message is spam
X-Spam-Details: Information about which spam policy your account is using
X-Spam-OrigSender: The sender's address, in case the visible address in the From: field was spoofed or faked
X-Spam-Bar (on messages scoring 1 to 100): The X-Spam-Score represented as 1 to 10 asterisks (*) for Procmail recipes to filter
X-Spam-Flag (on messages scoring 80 to 100): Set to YES for email clients to filter
A: The spam filters work really well once a new pattern is added to the filter, however, with email running at millisecond intervals, a few hundred can make it through the relay before it's recognized as a new spam campaign. It's a constant cat/mouse game. There are multiple spam storms daily that use the old uiuc.edu domain and a lot of zero hour spam (spam that makes through the relay before it's classified as spam). Sadly, your email address may be one of the lucky/unlucky ones.
An Exchange/Outlook filter would be the best choice catch the spam that makes it through the filters and keeps it out of your inbox. You can filter all *.uiuc.edu > trash. If you're concerned about legitimate legacy contacts then a new uiuc.edu folder may work best.
We also recommend you send suspect email to firstname.lastname@example.org so it gets reviewed and scored by our vendor. The vendor updates our spam filters about every 5 -10 minutes.
A: All email entering our domains (e.g. @illinois.edu) inherits the default spam policy, Cautious Plus No Quarantine. Some departmental admins have requested specific departmental email addresses get added to their spam policy account so they inherit a more aggressive spam policy. (e.g. Aggressive). If you are an IT Pro and want to add departmental email addresses to your policy, please send an email to email@example.com with details.
A: All accounts start with the spam control policy set to "Cautious Plus, No Quarantine."
A: Spam Control is working behind the scenes to reduce spam for those who have a Google Apps @ Illinois account. With the 'Cautious Plus, No Quarantine' spam control policy in a Google Apps @ Illinois account, for example, the account's worst spam is deleted, as well as any viruses. The remaining email will be sent to the Google account, and any leftover spam will be quarantined by Google and placed in a spam folder. Spam Control therefore weeds out the most offensive spam before it even reaches the Google Apps @ Illinois account.
A: Network administrators who run Procmail as the local delivery agent on departmental mail servers can use recipes to automatically filter their users' email based on Spam Control's X-Spam-Bar header. Please see Using Spam Control with Procmail for more information.
For general support please contact the Technology Services Help Desk.