如果有另一个用户将一封邮件发至你先发的那个地址，那么那个人就会获得你发的那封信，你也可以获得他发的那封信。并且，你们两人可以获得对方的邮箱地址。

If another user sends an email to the same address as you, they get your note, and you get theirs, in addition to each receiving the email addresses both of you sent your Invisible note's from.

youdao

你邮箱对我一点用都没有。为了证明我的诚意，我先给你发20个联系人。

I don't need your details for anything, to show some good will I could give you about 20 contacts, then when you send money, I give you the rest of it.

youdao

如果你给我你的私人电子邮箱地址，我可以发更多你可能感兴趣的公司和工作的详细信息给你。

I can send you more detailed information about company and jobs you might be interested in if you give me your private email address.

youdao