system mail

[Petrus de Calguarium]

When I receive system mail, I read it on the command line with the 'mail' program. It appears to be called Heirloom Mail version 12.4 7/29/08.

Now, as I scroll down, I see that the system mail is sent as:

Content-Type: text/plain; charset="ANSI_X3.4-1968"

However, my system is set up to use UTF-8. Why is this charset wrong, or not respecting my system setting? How can I get it corrected?