Handling spam
Use the spam filter to eliminate unwanted email and save you time. The spam filter identifies email that looks like potential spam and places it into the Spam folder.
About this task
You can specify criteria to help prevent spam. You can specify safe email addresses and domains and specify email addresses and domains from which you want to block email.
Messages that are identified as spam are delivered to your Spam folder, except for email that originated from a blocked sender. Email from a blocked sender is never delivered to you.
Email in your Spam folder is deleted after 30 days.