1, Mr./Ms.+Last name.
2. Hello, my name is First Name+Last Name (First Name and Last Name). Nice to meet you.
3. I'm reading your article/book, the title (in italics). I am a big fan of it.
I like it very much. Then talk about your favorite parts such as theme, content, etc.
Ways to prevent spam:
Give your mailbox a "good name". If your user name is too simple or too common, it is easy to be targeted. Many people are used to using the pinyin of their own names as user names, but it is generally too simple and easy to be caught by spammers.
Therefore, when applying for e-mail, you may want to have a more protective user name, such as a combination of English and numbers, as long as possible to avoid being harassed by spam.