@2me, Scam and phishing emails can look very legitimate. I'm an 80 year old techie and the latest scare for me was the Amazon gift card emails that were actually not a scam but sent out by some kind of a mess up by Amazon. They followed up with an apology email a few days later. My number one rule that I pass on to family and friends is to not respond to any email that tells me to click on a link. The same goes for any pop up message telling me to call a phone number.

One thing that helps me if I suspect an email is to do a little searching on the Internet using some keywords from the email to see if others have seen this particular email. Here are a few sites that might be helpful to share with your husband.
--- How to Recognize and Avoid Phishing Scams: https://consumer.ftc.gov/articles/how-recognize-and-avoid-phishing-scams
--- How do I identify phishing scams and avoid becoming a victim?: https://www.helpwithmybank.gov/help-topics/fraud-scams/scams/internet-scams/phishing-avoid.html