Gmail Blocked Email List -
Finding your list of blocked senders is only possible through the desktop version of Gmail or a mobile web browser, as the standard Gmail app does not provide a direct view of this specific tab.
Here’s a concise, informative review of Gmail’s blocked email list feature: gmail blocked email list
: Log into your account on a computer and click the Gear icon in the top-right corner. Finding your list of blocked senders is only
: Click on the Filters and Blocked Addresses tab at the top of the page. When an email sender finds their emails blocked
When an email sender finds their emails blocked by Gmail globally, it is usually due to violating Google's Bulk Sender Guidelines.
If you realize you have blocked a legitimate contact by mistake, you can restore them directly from the list: Blocking (and Unblocking) Senders in Gmail