Subject that ends with =?utf-8?Q?UTF-8?= =?utf-8?B?LCA4NSBvciBBMCBlLmcuOiDP?=

[Kenichi Asai]

> This e-mail has υ at the end of Subject.  I will send it out.

Somehow, the previous e-mail did not contain the replacement character
at the end of Subject.  I don't know why.  Because the e-mail was
quoted perhaps?

[text/plain, quoted, utf-8, 1.3K]

Bastian's e-mail is 7bit (as is my original e-mail):

[text/plain, 7bit, us-ascii, 0.7K]

I try to send this e-mail out in 7bit mode (with υ at the end of
Subject).

> * Does the problem occur if you use a different editor?

Yes.  The same thing happens with:

set editor="emacs %s"

-- 
Kenichi Asai