Yes, you can block emails in Gmail, and it takes about 10 seconds

Open the email you want to block. Click the three dots (more actions menu) in the top right corner of the message. Select "Block [sender's name]" from the dropdown. Gmail will then send all future emails from that address to your spam folder automatically.

Once you block someone, you won't see their messages in your inbox, and they won't know you blocked them. The block stays in place until you undo it. You can unblock a sender anytime by going to Gmail Settings, clicking the Filters and Blocked Addresses tab, finding the blocked address, and clicking "Unblock."

Key Takeaways

  • Blocking an email address in Gmail sends all future messages from that sender directly to your spam folder.
  • The person you block cannot tell that you blocked them, and blocking does not delete their past emails from your account.
  • You can block someone in three clicks from any email they sent you, or manage your full blocked list in Settings.
  • Blocking only affects emails from that exact address — if someone uses a different email address, those messages will still reach your inbox.

Where to find the block button in Gmail

Open any email from the person you want to block. In the top right corner of the message, you'll see three vertical dots. Click them to open a menu with several options. "Block [sender's name]" appears near the bottom of that menu.

If you're using Gmail on a phone or tablet, the three-dot menu is in the same place — top right of the email. The block option works the same way on mobile as it does on a computer.

What happens to emails after you block someone

All new emails from a blocked sender go straight to your spam folder. You won't see a notification, and the message won't appear in your inbox. If you check your spam folder, you can still read blocked emails — blocking doesn't delete them, it just hides them from your main inbox view.

Emails that arrived before you blocked the sender stay in your inbox or wherever they were. Blocking only affects messages that come in after you click the block button. If you want to clean up old emails from that person, you'll need to delete or archive them separately.

Blocking doesn't stop someone from sending you emails

When you block an email address, the sender can still send you messages. They just won't know that you're not reading them. Gmail doesn't notify the blocked person that they've been blocked, and it doesn't bounce their emails back to them. From their perspective, the email went through normally.

This is different from some other email services that send a delivery failure notice. In Gmail, blocking is silent — it's a way to filter unwanted mail without confrontation.

How to manage your full list of blocked addresses

Go to Gmail Settings by clicking the gear icon in the top right corner of your inbox, then select "See all settings." Click the "Filters and Blocked Addresses" tab. Scroll down to the "Blocked Addresses" section to see everyone you've blocked.

From this list, you can unblock anyone by clicking the "Unblock" link next to their name. You can also create filters here to automatically sort emails by sender, subject line, or keywords — which gives you more control than blocking alone. For example, you could filter emails from a sender into a specific folder instead of spam.

When blocking might not work the way you expect

If someone uses multiple email addresses, blocking one address won't stop emails from their other addresses. You'll need to block each address separately. This is common with people who have work and personal email accounts, or who create new addresses to get around a block.

Blocking also doesn't prevent someone from seeing your replies if you've already been in a conversation with them. If you've emailed someone before, they can still read your old messages in their inbox. Blocking only stops new incoming mail from reaching you.

Alternatives to blocking if you want more control

Create a filter to automatically delete emails, archive them, or move them to a specific folder. Filters let you target emails by sender, subject line, or keywords. Go to Settings > Filters and Blocked Addresses > Create a new filter to set this up. Filters are more flexible than blocking because you can choose what happens to the email instead of just sending it to spam.

Unsubscribe from mailing lists if the emails are from a company or newsletter. Most legitimate marketing emails have an "Unsubscribe" link at the bottom. Clicking it removes you from that sender's list. This works better than blocking for newsletters because it tells the sender you don't want their mail, rather than silently filtering it.

Report as spam if the emails look like phishing, scams, or unwanted bulk mail. Click the three dots and select "Report spam" instead of block. This helps Gmail improve its spam detection for everyone. Reporting also sends the email to spam, similar to blocking, but gives Gmail information about what kinds of messages are problematic.

Frequently Asked Questions

Can the person I blocked tell that I blocked them?

No. Gmail doesn't send a notification to blocked senders, and their emails don't bounce back to them. They won't receive any message saying you blocked them. The only way they'd know is if you told them directly or if they noticed you stopped replying to their emails.

What if I block someone by mistake?

Go to Settings, click "Filters and Blocked Addresses," find the person's name in the blocked list, and click "Unblock." Their future emails will start arriving in your inbox again. Past emails from before you blocked them will still be in your inbox where they were.

Does blocking delete old emails from that person?

No. Blocking only affects new emails. Any messages from that sender that arrived before you blocked them stay in your inbox or wherever they were filed. You can search for their name and delete or archive old emails separately if you want to remove them.

Can I block an email address that hasn't sent me anything yet?

Not directly from the block button. You can create a filter instead by going to Settings > Filters and Blocked Addresses > Create a new filter, entering the email address, and choosing to delete, archive, or skip the inbox. This prevents emails from that address before they arrive.

What's the difference between blocking and filtering?

Blocking sends all emails from someone to spam automatically. Filtering gives you more options — you can delete emails, archive them, explore a label, or send them to a specific folder. Filters also let you target emails by subject line or keywords, not just the sender's address.