Please use the "report spam" feature built into Gmail to report any Spam messages you have received.

1. Open the message you'd like to report.
2. At the top-right corner of the message, click the three vertical dots next to the "Reply" button.
3. Select Report Spam.

This helps Google recognize these messages in the future and filter them out of your inbox.

For more information, please see OIT's Spam knowledge article.

Google also has a built-in report phishing feature.