If you don't have an old email, you will need to perform the Desktop steps above via a web browser on your phone.
If you blocked someone via iCloud mail or your iPhone settings, you can reverse it easily. how to unblock someone email
Gmail uses a "Blocked Addresses" list within your main account settings to manage these contacts. Open Gmail and click the Settings gear icon . Select See all settings . Go to the Filters and Blocked Addresses tab. Scroll down to the bottom of the page. Find the email address and click Unblock . On Mobile (iOS/Android): Open an old email from the sender. Tap the three dots next to the sender’s name. Select Unblock [Name] . Outlook and Hotmail If you don't have an old email, you
: Open a message from the sender (check the Spam folder if needed), click the three dots (More) in the top right, and select Unblock [Sender] . Open Gmail and click the Settings gear icon
The Outlook mobile app does not currently support editing the blocked list directly. You must log in via a web browser to unblock someone.
Yahoo keeps blocked addresses in the Security and Privacy settings.
Unblocking an email address involves removing it from your provider's "Blocked Senders" list, which typically directs messages from that contact to your Spam or Junk folder. Unblocking by Email Service