bucket_policy

{
    "Version": "2008-10-17",
    "Statement": [
        {
            "Sid": "GiveSESPermissionToWriteEmail",
            "Effect": "Allow",
            "Principal": {
                "Service": [
                    "ses.amazonaws.com"
                ]
            },
            "Action": [
                "s3:PutObject"
            ],
            "Resource": "arn:aws:s3:::BUCKET-NAME/*",
            "Condition": {
                "StringEquals": {
                    "aws:Referer": "ACCOUNT-ID-WITHOUT-HYPHENS"
                }
            }
        }
    ]
}