How many times do you send an email to a customer about a change in your policies?
Do you think that the following would be enough?

By the way, notice that the spammer changed to the date on the 25th! Which must be a lot of work for him.
P.S. I had a problem with Thunderbird before, but this one really is spam. Don't worry it all ended up in my spam folder, automatically, it is just that I sort by Sender so it all appears together (opposed to sorting by date which is what most of us do.)