Comment 10 for bug 1643210

I have attached the results of my latest effort. For the From:, this gets the i18n translation of the '%(realname)s via %(lrn)s' string with dummy substitutions, converts it to unicode and substitutes unicode values for the substitutions and encodes it all as utf-8. I have tested this to some extent and I think it's good, but I would appreciate additional testing. Please try this and see if it works in your environment or report any issues.

As far as the encoding of _('(no subject)') is concerned, my change ensures this is translated in the list's language, not the poster's.

Again, thanks for your help with this.