The fastest way to block someone in Gmail

Open the email from the person you want to block. Click the three dots (more actions menu) in the top right of the email. Select "Block [sender's name]" from the dropdown. Gmail will move that sender's future emails to spam automatically, and you won't see notifications when they arrive.

That's the complete process. Once blocked, emails from that address go straight to your spam folder. You can unblock the person later by going to Settings > Filters and Blocked Addresses > Blocked Addresses tab, finding their name, and clicking "Unblock".

Key Takeaways

  • Blocking takes three clicks: open the email, click the three-dot menu, and select "Block [sender's name]".
  • Blocked senders' emails land in spam, and you receive no notifications from them.
  • You can see a list of everyone you've blocked in Settings > Filters and Blocked Addresses.
  • Unblocking someone is just as quick — find them in the Blocked Addresses tab and click "Unblock".
  • Blocking only affects your account; the sender doesn't know they're blocked and can still send emails (you just won't see them).

What happens when you block someone

When you block an email address, Gmail routes all messages from that sender to your spam folder. You won't see a notification when they email you, and their messages won't clutter your inbox. The sender has no way of knowing they're blocked — Gmail doesn't send them a notification, and their emails don't bounce back to them.

If you accidentally open a blocked sender's email (for instance, if you check your spam folder), you can still read it. Blocking just automates the routing; it doesn't delete old messages or prevent you from viewing them if you choose to.

Blocking email from a domain instead of a single address

If you're receiving spam from many addresses at the same domain (like spammer@company.com, noreply@company.com, etc.), blocking each address individually is tedious. Instead, use Gmail's filter feature to catch all mail from that domain at once.

Go to Settings > Filters and Blocked Addresses > Create a new filter. In the "From" field, type the domain name with an asterisk: *@company.com. Click "Create filter", then check "Delete it" or "Skip the inbox (Archive it)". This catches every address from that domain without blocking individual senders.

When blocking isn't enough

Blocking works well for unwanted email from people you know or standard spam. It doesn't stop someone from creating a new email address and contacting you again. If someone is harassing you across multiple addresses, blocking each one individually becomes impractical.

For persistent harassment, consider reporting the emails as phishing or abuse. Open the email, click the three-dot menu, and select "Report phishing" or "Report spam". This sends the message to Google's abuse team and helps them identify patterns of harassment. You can also forward the emails to Gmail's abuse team at abuse@gmail.com if the harassment involves threats or illegal activity.

Recovering accidentally blocked contacts

If you blocked someone by mistake, you have a straightforward way to undo it. Go to Gmail Settings (the gear icon in the top right), then select "See all settings". Click the "Filters and Blocked Addresses" tab, then the "Blocked Addresses" tab. You'll see a list of everyone you've blocked. Find the person you want to unblock and click the "Unblock" button next to their name.

Once unblocked, their future emails will arrive in your inbox normally. Old emails from when they were blocked will still be in your spam folder, but you can move them back to your inbox manually if you need them.

Blocking on mobile Gmail

The process is nearly identical on the Gmail app for iPhone or Android. Open the email from the sender you want to block. Tap the three dots in the top right corner. Select "Block [sender's name]". The app will confirm the block, and future emails from that address go to spam.

To unblock on mobile, open Settings within the Gmail app, scroll to your account, tap "Manage your Google Account", go to the "Data & Privacy" tab, scroll to "Your data in Gmail", and select "Blocked addresses". You can unblock from there, though it's sometimes easier to do on a computer.

The difference between blocking, muting, and unsubscribing

Gmail offers three separate tools, and they work differently. Blocking sends all future mail from someone to spam and silences notifications. Muting keeps emails in your inbox but removes notifications and hides them from your conversation list — useful for threads you don't want to follow but might need later. Unsubscribing removes you from a mailing list, which works only if the sender included an unsubscribe link (required by law for marketing email).

For unwanted contact from a person, blocking is the right choice. For newsletters or notifications you don't want to read but might reference later, muting is gentler. For marketing email with an unsubscribe option, unsubscribing is often faster than blocking because it stops the sender from contacting you at the source.

Frequently Asked Questions

Can someone tell if I've blocked them in Gmail?

No. Gmail doesn't notify the sender that they've been blocked. Their emails still go out normally from their perspective — they just land in your spam folder instead of your inbox. They have no way to know unless you tell them.

Will blocking delete emails I've already received from them?

No. Blocking only affects future emails. Old messages from that sender stay in your inbox unless you manually delete or move them. If you want to remove old emails from a blocked sender, you'll need to search for them and delete them yourself.

What if I block someone and they create a new email address?

You'll have to block the new address separately. If someone is repeatedly contacting you from different addresses, report the pattern as harassment to Gmail's abuse team. You can also create a filter to catch emails containing specific words or phrases if the harassment follows a pattern.

Does blocking in Gmail block them on other Google services?

No. Blocking in Gmail only affects Gmail. If you want to block someone on YouTube, Google Meet, or other Google services, you'll need to block them separately in each service.

Can I block an email address I don't recognize?

Yes. You don't need to know who someone is to block them. If you receive an email from an address you don't recognize and don't want to hear from them, open it and block it when ready. Gmail will handle the rest.