CopiaFacts supports accented characters in both headers and body text, where permitted in the relevant E-Mail RFC document. In the case of headers, words containing non-ASCII characters are encoded as quoted-printable, and if a body text item contains accented characters the whole text is encoded as quoted-printable.
The default character set used for e-mail is UTF-8. If you require your e-mails sent with a different encoding, you should use the $email_charset command to specify it. This may be required for international destinations where a national character set is more usually employed for e-mail.