The Suppression page is a comprehensive list of all addresses that are actively blocked from receiving emails through your account. You’ll locate this list by visiting the “Reports > Suppressions” section of your account’s dashboard.
Email addresses on this page include: previous hard-bounces, spam complaints, unsubscribes, and manually added addresses.
Individual recipient addresses or entire domains can be manually added by selecting the “Add Suppression” button located at the top-right of the page. This is also possible via API (POST /blocklist/add).
An address or domain may be removed if necessary by clicking the “x” icon. Multiple addresses may be removed by checking the appropriate checkboxes and selecting the “Delete Selected” button at the bottom-left of the page.
The “...” icon (located next to the “Add Suppressions” button along the top of the page) allows you to download the list.