Always be polite. 保持親切隨和。

In reality you wouldn't stop chatting to someone in the street mid-flow if they were boring you in a conversation; however, online you can. If an email conversation starts out well but then you realise this person isn't 'the one' then politely back away. Failing that, if they don't take the hint, then their emails conveniently getting 'lost in cyberspace' or ignoring all contact should also work。

現實生活中，即便對他人的談話感到厭煩不已，你也不會斷然終止對話。但在網上卻可以。如果最初的郵件往來很好，后來卻發現對方不是想要的那個"真命天子"，你大可禮貌地終止這種交流。如果對方沒看懂這種暗示，你還可以假裝沒收到郵件或者直接忽略這種溝通方式。