If the email address is not valid or does not exist, we expect to get an error from the email provider.

如果电子邮件地址无效或不存在，就会从电子邮件提供商那里收到一个错误。

youdao

For example, I liked the idea of a “bounce” option for unwanted emails to make it look as if your email address didn’t exist.

例如，我喜欢“跳走”这个想法，对于你不想接收的邮件，你的邮箱地址看似是不存在的。

youdao

In this sample output, no email information was returned for a qualifying customer (Lisa Hansen) because this element didn't exist in her XML "contactinfo" document.

在该示例输出中，没有返回符合条件的客户(Lisa Hansen)的电子邮件信息，因为该元素不存在于她的XML “ contactinfo ”文档中。

youdao

To be clear, many of the web pages referenced in the email actually exist at the official IRS web site.

FORBES: Bogus IRS Emails Resurface

Give them a reason to leave you their email address (a free report, a discount, a newsletter) then keep reminding them that you exist and that you sell some good stuff.

FORBES: Why Businesses Fail.