Hash the canonicalized body of a message (C#: MimeMessage.HashBody).
MimeMessage.HashBody
The message whose body to hash.
The formatting options.
The signature algorithm (selects the hash).
The body canonicalization algorithm.
The max body length to hash, or -1 for the whole body.
-1
The body hash.
Hash the canonicalized body of a message (C#:
MimeMessage.HashBody).