- Open Gmail.
- Select the message you'd like to report.
- In the toolbar above your emails, click the spam button
. If you have the message open, you can also report it as spam by using the same button.
Remember, every time you report spam or phishing, it helps us identify those emails as spam for you in the future.
What you need to know:
After you report spam for several messages from the same sender, our system will learn from your behavior and might continue placing that sender's messages to Spam even if you don't specifically report them.
Also know that you can create filters to route certain messages from Spam to your Inbox, or route spam messages to your Trash. We'll let you know whenever your filters caused a message that our system identified as spam to be moved to your Inbox; if you want those messages to stay in Spam, consider changing your filters.
Actions you can take:
If you don't want the message to be in Spam, click the "Not spam" button to move it into your Inbox. If you mistakenly marked it as a phishing scam, please click the down arrow next to "Reply" at the top-right of the message pane, and select "Report not phishing" to let us know that the message is legitimate. By reporting that a message is not spam or phishing, you'll help teach Gmail's system what to do when it sees a similar message in the future.
You can adjust your filters if they're causing spam to be moved back into your Inbox.
<source: https://support.google.com/mail/answer/8151?hl=en>
<source: https://support.google.com/mail/answer/1366858?hl=en>