Got that scam mail as well. Part of header (notice it failed part of spf check):
Received: from unknown (HELO night01.superiorguardmanagement.com) (217.40.107.225)
Received-SPF: softfail (mx1.cudamail.com: domain of transitioning
[email protected] does not designate 207.181.121.72 as permitted sender) receiver=mx1.cudamail.com; client_ip=207.181.121.72;
[email protected];