you can first try to convert the text to UTF-8 using STRCONV () ?

>maybe try with:
>

.BodyPart.CharSet="utf-8"

>

I tried

loMail = NEWOBJECT("Cdo2000", "Cdo2000.fxp")
WITH loMail
    .cCharset = 'UTF-8'
...

CDO2000.prg code populates bodypart and other charsets from this.
However russian utf-8 body and subject still contain garbage characters.