curl --request GET \
  --url https://api.member.dev/v1/admin/email-suppressions \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "attributes": {
        "email_address": "<string>",
        "is_active": true,
        "reason": "<string>",
        "scope": "<string>",
        "suppressed_at": "<unknown>",
        "hub_id": "<string>",
        "lifted_at": null,
        "lifted_by": "<string>",
        "source_event_type": "<string>",
        "team_id": "<string>"
      },
      "id": "<string>",
      "links": {},
      "type": "email_suppressions"
    }
  ],
  "links": {},
  "meta": {}
}