KMail stuck on loading message

[Maurice]

On Tue, 21 Nov 2017 12:14:20 +0000, Maurice wrote:

> It's a problem that is preventing me from moving from Mageia-5 to -6.

  Actually, I have now moved over onto Mageia-6, using Thunderbird 
instead of KMail 
  after passing it the whole of my Maildir POP database.
    Steady as a rock, though I've already found an unexpected difficulty 
in seeing 
  the body of an email sent to me as an email attachment...
-- 
/\/\aurice