Thank you all for considering this issue. > * After you finish the above steps, what happens if you edit the email again > in vim? Does the 加 show up at the end of the subject in vim the second time?
No. In vim, the character becomes ?? (two question marks). > * With your original steps, what does the email look like if you send directly > after returning from vim? The replacement character is sent as seen in Bastian's e-mail: Date: Tue, 2 Aug 2022 12:39:06 +0200 From: Bastian <bastian-muttu...@t6l.de> To: mutt-users@mutt.org Subject: Re: Subject that ends with UTF-8, 85 or A0 �� (I am not quite sure why there are two replacement characters here instead of one.) > Would you mind sending me an email so I can take a look? This e-mail has υ at the end of Subject. I will send it out. > * Does the problem occur if you use a different editor? Let me come back to this later. I need to send this e-mail out to try a different editor. > * In the step: > "- enter some e-mail address and a subject." > if instead, you put a 加 at the end of the subject here, before running vim, > does 加 show up in vim? Yes. > If you then don't modify the subject while still in > vim, does it show up in Mutt? No. It becomes the replacement character. -- Kenichi Asai