How to block unknown senders mail in gmail

To block unknown senders' mail in Gmail, you can follow these steps:

Method 1: Using Gmail's built-in feature

1. Log in to your Gmail account.
2. Click on the gear icon () in the upper right corner of the page.
3. Select "See all settings" from the dropdown menu.
4. Go to the "Filters and Blocked Addresses" tab.
5. Click on "Create a new filter".
6. In the "From" field, enter "unknown" or "unwanted" (without quotes).
7. Click on "Create filter".
8. Select "Block" as the action.
9. Click on "Create" to save the filter.

Method 2: Using Gmail's "Spam" folder

1. Log in to your Gmail account.
2. Click on the "Spam" folder in the left-hand menu.
3. Check the box next to the unwanted email from an unknown sender.
4. Click on the "More" dropdown menu and select "Mark as spam".
5. Repeat this process for all unwanted emails from unknown senders.
6. Gmail will automatically move these emails to the "Spam" folder and block future emails from the same sender.

Method 3: Using Gmail's "Report spam" feature

1. Log in to your Gmail account.
2. Open an unwanted email from an unknown sender.
3. Click on the "Report spam" button at the top of the email.
4. Confirm that you want to report the email as spam.
5. Gmail will automatically move the email to the "Spam" folder and block future emails from the same sender.

Additional tips:

• To block a specific sender, you can add their email address to your "Blocked addresses" list. To do this, go to the "Filters and Blocked Addresses" tab in your Gmail settings, and click on "Create a new filter". Enter the sender's email address in the "From" field, and select "Block" as the action.
• If you're receiving a lot of unwanted emails from unknown senders, you may want to consider using a third-party email client or service that offers more advanced spam filtering features.
• Remember that while these methods can help block unwanted emails, they're not foolproof. It's still important to be cautious when opening emails from unknown senders and to never respond to or click on links in suspicious emails.