電郵算唔算係書面回覆?係咪一定要白paper黑字先係?電郵回覆的內容印在paper上在法律上有冇認可?

1. No. Unless explicited included, email is not a form of writing.

2. Yes.

3. It depends on the situations. In most of the case, a court of law will accept emails as evidence. However, in some special circumstances, the court will exclude emails as evidence. For example, anything related to real estate.

可以，用電郵誹謗可以入罪，例如不誠實使用電腦。