email workflow is failing

{
  "name": "MessageRejected",
  "$fault": "client",
  "$metadata": {
    "httpStatusCode": 400,
    "requestId": "ef4a8a81-5a30-49e5-bebf-1d6104b85507",
    "attempts": 1,
    "totalRetryDelay": 0
  },
  "Error": {
    "Type": "Sender",
    "Code": "MessageRejected",
    "Message": "Email address is not verified. The following identities failed the check in region US-EAST-2: [email protected], Pretectum Notification <[email protected]>, [email protected]",
    "message": "Email address is not verified. The following identities failed the check in region US-EAST-2: [email protected], Pretectum Notification <[email protected]>, [email protected]"
  },
  "RequestId": "ef4a8a81-5a30-49e5-bebf-1d6104b85507",
  "xmlns": "http://ses.amazonaws.com/doc/2010-12-01/"
}