What blocking someone on Gmail actually does

When you block someone on Gmail, their emails stop arriving in your inbox. Any message they send you goes straight to spam instead, and you won't see a notification. They won't know they're blocked — Gmail doesn't tell them — but if they try to email you from another account, that message comes through normally. Blocking only affects one email address at a time, so if someone has multiple accounts, you'd need to block each one separately.

Blocking is different from unsubscribing. When you unsubscribe from a mailing list, you're asking the sender to remove you from their distribution. When you block, you're telling Gmail to filter out that specific sender. The person can still send you mail; you just won't see it arrive.

Key Takeaways

  • Blocked emails go to your spam folder automatically, and you won't receive notifications about them.
  • The person who is blocked won't be notified, but they can still send you messages — you just won't see them.
  • You block one email address at a time, so blocking someone's work email doesn't block their personal email.
  • You can unblock someone later from your spam folder or from Gmail settings if you change your mind.

How to block someone in Gmail on a computer

Open Gmail in your web browser and find an email from the person you want to block. Click the three vertical dots (the menu icon) on the right side of the email. A dropdown menu appears with several options. Select "Block [sender's name]" from that menu.

Gmail will ask you to confirm. Click the "Block" button in the confirmation window. That's it — from that moment on, any email from that address goes to spam automatically. If you want to block someone without opening their email first, you can also right-click on their name in your inbox and select the block option from the context menu.

How to block someone in Gmail on your phone

Open the Gmail app on your Android or iPhone. Find an email from the person you want to block and open it. Tap the three vertical dots in the top right corner of the email. Scroll down in the menu that appears and tap "Block [sender's name]."

A confirmation message appears. Tap "Block" to confirm. On iPhone, the menu might look slightly different depending on your Gmail app version, but the three-dot menu icon is always in the same spot. If you don't see a block option, make sure your Gmail app is updated to the latest version.

What happens to emails that are already in your inbox

Blocking someone doesn't delete their old emails from your inbox. Messages they sent you before you blocked them stay where they are. If you want to remove them, you'll need to delete them manually or move them to trash. You can select multiple emails at once and delete them together if there are a lot.

If you blocked someone by mistake and want to read their old emails again, unblocking them won't bring those deleted messages back. They'll stay in trash until you permanently delete them or until Gmail's automatic deletion kicks in (usually after 30 days).

How to unblock someone

Go to Gmail settings on your computer by clicking the gear icon in the top right and selecting "See all settings." Click the "Filters and Blocked Addresses" tab. You'll see a list of every email address you've blocked. Find the person you want to unblock and click "Unblock" next to their name.

On your phone, you can't manage your blocked list directly in the app. You'll need to open Gmail in your mobile web browser, go to settings, and follow the same steps as on a computer. After you unblock someone, their emails will start arriving in your inbox again instead of going to spam.

When blocking doesn't work the way you expect

If someone keeps emailing you from different addresses, blocking one email won't stop the others. You'll need to block each address separately as they arrive. This is common with people who have work and personal accounts, or who create new accounts to get around a block. In these cases, you might want to create a Gmail filter instead, which can catch emails based on keywords or sender patterns rather than just one address.

Blocking also doesn't prevent someone from seeing your emails if they're already in a conversation thread with you. If you've been emailing back and forth and then block them, they can still see your old messages in that thread — they just won't receive new ones you send. If you need to hide a conversation completely, you'll need to delete it or archive it separately.

Frequently Asked Questions

Can someone tell if I blocked them?

No. Gmail doesn't notify people when they're blocked. They might notice their emails aren't getting responses, but they won't receive any message from Gmail saying they've been blocked. If they try to email you and suspect something is wrong, the only way they'd know for sure is if you told them.

What if I block someone and they email me from a different account?

That email will come through normally because you blocked only the original address. You'd need to block the new address separately. If someone keeps creating new accounts to contact you, consider creating a filter that catches emails with certain keywords instead, or contact Gmail support if the behavior feels like harassment.

Does blocking someone on Gmail block them on other Google services?

No. Blocking on Gmail only affects email. If you want to block someone on YouTube, Google Meet, or other Google services, you need to block them separately in each service. Gmail blocking and Google account blocking are different actions.

Can I block an entire domain instead of one email address?

Gmail doesn't have a built-in feature to block all emails from a domain at once. You can block individual addresses or create a filter that catches emails from a domain and sends them to spam, but the filter method requires more setup. If you need to block many addresses from the same company, creating a filter is usually faster than blocking each address one by one.

What happens if I unblock someone and then block them again?

Unblocking and reblocking works the same way as the first time. Their emails will go to spam again when ready after you block them. There's no penalty or limit to how many times you can block and unblock the same person.