I wrote:
> Meh. That character renders as \310 in your mail, which is not an
> assigned code in ISO 8859-1. The numerically corresponding Unicode
> value would be U+0090, which is an unspecified control character.
Oh, scratch that, apparently I can't do hex/octal arithmetic in my
head first thing in the morning. It's really U+00C8 which is perfectly
valid. I can't see a reason why that character and only that character
would be problematic --- have you done systematic testing to confirm
that that's the only should-be-LATIN1 character that fails?
regards, tom lane