You can block any contact within the Gmail’s Chat feature or through the Hangouts. But what if you have accidentally blocked any email address you want to chat with?
Unblocking someone on Gmail is very easy that can be done by removing the filters. Just have a glance at this article to find out how to unblock an email address of a person on gmail.
Steps to Unblock the Email Address on Gmail
Step 1: Go to gmail.com and enter your User name and Password.
Step 2: Click on the gear option on the top right, and select “Settings”.
Step 3: Select the “Filters” tab.
Step 4: You will find all your blocked emails addresses, then select the email which you want to unblock.
Step 5: Click on “Delete” option to remove that filter. You can also delete all the blocked emails by selecting “All” below the filtered emails and then click on “Delete’ button.
Step 6: You will find a dialog box asking you to confirm to delete the filter. Click on “OK”.
Step 7: Now you will get a message on the top of the screen as “Your filter is deleted”, as shown in the image.