The dog suddenly turned on the mail person.

这条狗突然向邮递员进攻。

youdao

You must collect the mail in person and take along some form of identification.

你必须亲自去取邮件，并带上某种身份证明。

《柯林斯英汉双解大词典》

The agent generates automatic responses once for each person who sends mail to you, even if the person sends several messages to you during your absence.

在您外出期间，对每个给您发送邮件的人，即使给您发送了多封邮件，代理都只会自动答复一次。

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every sort of communication, e-mail, person to person,

各种交流沟通，电子邮件，面谈，

为何选那门专业？ - SpeakingMax英语口语达人

You can call, text or e-mail a person whom you appreciate.

CNN: Smartphone apps become 'surrogate therapists'

We want you to think about voting early, whether it's by mail or in person -- vote early.

WHITEHOUSE: The White House

So I hope that all of you will vote early as well, either by mail or in person in your community.

WHITEHOUSE: The White House