Current status:
"x" - means the reply does not leak information from other blocks
reply as text:
[x] PGP Mime text
[x] PGP Mime html
[x] S/MIME
[x] PGP inline
reply as html:
[x] PGP Mime text
[x] PGP Mime html ( and it removes the first text node, if it finds a HtmlMessagePart in leaf nodes)
[x] S/MIME
[x] PGP inline
will moved to another review request:
forward (text/html):
[] PGP Mime text
[] PGP Mime html
[] S/MIME
[] PGP inline