The fastest way depends on which email service you use

Most email services let you unblock someone in two or three clicks, but the exact steps change depending on whether you use Gmail, Outlook, Yahoo Mail, or another provider. The blocked person won't know you've unblocked them — there's no notification sent — and you'll start receiving their emails again when ready after you remove them from your blocked list.

If you're not sure which service you use, check the web address in your browser. Gmail shows mail.google.com, Outlook shows outlook.live.com or outlook.office.com, and Yahoo Mail shows mail.yahoo.com. Mobile apps work the same way as the website version, though the menu locations shift slightly.

Unblocking is different from deleting emails or marking them as spam. When you unblock an address, you're removing it from a separate list that prevents all messages from that sender from reaching you. Once removed, their emails behave like any other incoming message.

Key Takeaways

  • Gmail, Outlook, and Yahoo Mail all store blocked addresses in a settings menu you can access in under a minute.
  • Unblocking someone restores their emails to your inbox when ready; there is no waiting period or confirmation step.
  • The blocked person receives no notification that you've unblocked them.
  • If you blocked someone by mistake, unblocking them is the only way to receive their messages again.
  • Emails that arrived while someone was blocked are permanently deleted and cannot be recovered.

Unblocking in Gmail

Open Gmail and click the gear icon in the top right corner. Select "See all settings" from the dropdown menu. Click the "Filters and Blocked Addresses" tab near the top of the page.

You'll see a list of every address you've blocked. Find the one you want to unblock and click the "Unblock" button next to it. That's it — the address is now unblocked and their emails will arrive in your inbox like normal.

If you have many blocked addresses, you can search for a specific name or email using the search box at the top of the Filters and Blocked Addresses tab. This saves time if you're looking for one person among dozens of blocked senders. Gmail also shows you when each address was blocked, which can help if you're trying to remember who you blocked and why.

Unblocking in Outlook

Log into Outlook on the web and click the gear icon in the top right. Select "View all Outlook settings." Click "Mail" in the left sidebar, then scroll down and click "Junk email."

Under "Safe Senders and Domains," you'll see a section for blocked senders. Click "Manage blocked senders" to see your full list. Find the address you want to unblock and click the delete icon (trash can) next to it. The person is now unblocked.

In the Outlook mobile app, go to Settings, then Mail, then Junk Email. Tap "Blocked Senders" and swipe left on the address you want to remove (on iPhone) or long-press it (on Android), then select delete. The process is the same whether you're using the free Outlook.com account or a work account through Microsoft 365.

Unblocking in Yahoo Mail

Click the gear icon in the top right and select "Settings." Click the "Security and Privacy" tab. Scroll down to "Blocked Addresses" and click "Manage blocked addresses."

You'll see a list of blocked senders. Click the X button next to the address you want to unblock. Confirm the action if Yahoo asks you to. The address is now unblocked and their emails will reach your inbox.

Yahoo Mail also lets you block addresses directly from an email. If you receive a message from someone and want to block them, click the three-dot menu on that email and select "Block sender." To unblock, you must use the Settings menu described above — there's no unblock option in the email itself.

What happens after you unblock someone

Once you unblock an address, emails from that person start arriving in your inbox when ready. Any messages they sent while they were blocked will not appear — those emails are gone permanently. Only new messages sent after you unblock them will show up.

If you want to see old messages from that person, you can ask them to resend important emails. There's no way to recover messages that arrived while the address was blocked. Some email services keep deleted messages in a trash folder for 30 days, but blocked messages don't go there — they're removed entirely.

Unblocking by accident: how to re-block quickly

If you unblock someone and then realize you made a mistake, you can block them again using the same settings menu. The process takes about 30 seconds. In Gmail, go back to Filters and Blocked Addresses, find their address in your inbox or recent emails, and click "Block." In Outlook and Yahoo Mail, you can type the address directly into the blocked senders field without waiting for an email from them first.

Re-blocking someone does not delete any emails they've already sent you since you unblocked them. Those messages stay in your inbox unless you delete them manually. If you want to remove those emails, you'll need to search for them by sender name and delete them one by one or in bulk.

Frequently Asked Questions

Does the person know I unblocked them?

No. Unblocking sends no notification to the other person. They won't know unless you tell them or they notice that their emails are reaching you again.

Can I unblock someone on my phone?

Yes. All three major email services work the same way on mobile as on desktop. Open your email app, go to Settings, find the blocked senders or junk email section, and remove the address from the list.

What if I blocked someone years ago and forgot their email address?

Your blocked list shows every address you've blocked. Go to your blocked senders settings and look through the list. If you remember part of their name or email, use the search function to find them faster.

If I unblock someone, will old emails from them reappear?

No. Emails that arrived while someone was blocked are permanently deleted. Unblocking only affects new messages sent after you remove them from the blocked list.

Can I block an email address without receiving a message from them first?

Yes. In Outlook and Yahoo Mail, you can type an address directly into the blocked senders field. In Gmail, you need to either receive an email from them first or create a filter that blocks their address automatically.