ITS manages the Mail Filtering Service, which filters unwanted e-mail from many UT Austin email services. Although ITS anti-spam and anti-phishing solutions are very effective, it is impossible to detect all unwanted e-mail. While ITS adjusts the hardware and software technologies in use on campus to adapt to new spamming and phishing techniques, you may occasionally see unwanted e-mail appear in your inbox.
If the Mail Filtering Service is unable to conclusively determine whether a message is spam or otherwise malicious, the message is sent with one of the following tags: [UTEXAS: SUSPECTED SPAM] or [UTEXAS: POSSIBLY MALICIOUS CONTENT] attached to the beginning of the subject line and a warning is added to the top of the message. This will allow you to determine whether the message is legitimate. You can also create a rule or filter based on the altered subject line to automatically mark these messages as unwanted email in the future.
Please be aware that it is possible, for legitimate e-mail to be tagged as spam or as being malicious.
Given this, it is important that you consider reviewing or searching the folder where these tagged e-mails are kept in the event you are missing e-mail that you expected to receive.