email format is changed from HTML to Text

[Alex Perez]

I haven't done any research on this, I hope someone has the answer.
Sometimes when I reply to a message, the email format is changed from HTML
to Plain text automatically, It does't happen when I am writing a new email,
it is just sometimes when I am replying.

 

[Ray at]

Are you sure that the message to which you are replying is HTML and not just
plain text with foreign encoding? For example, I set the encoding for this
message to Turkish, but it is still plain text. It just doesn't appear that
way (to me anyway, and possibly also you).

Ray at work