Hi, Nicholas Boel!
I read your message from 07.07.2017 14:00

  NB> I'm sorry to hear that. However, my comment of "Every bit of my
  NB> message is UTF-8" as well as "There is nothing wrong with my
  NB> setup" still stand.

For a test I've set up UTF for Fidonews area in my Thunderbird. But your 
tear lines is distorted anyway. Maybe by your NNTP server?

You can look at your line at
http://vp.propush.ru/index.php?q=node/6&area=fido7.fidonews&msgid=66255

Bye, Nicholas!
Alexander Koryagin
fido7.fidonews 2017
--- FIDOGATE 5.1.7ds