Thanks for your help. I swept my computer with Malwarebytes in Safe Mode, ran antivirus, Ccleaner, Superantispyware, all came up empty.
I rebooted my computer and from there it seems to have disappeared.
I performed reverse email and I found it originated from Texas with no activity from the email address for at least 2 months.
This has me creeped out.
I have been online since 1998 and nothing close to this has ever happened.
Should I change my Salehoo ID and password?
Thank you Irene.