Process servers cannot leave papers in a person's mailbox. By federal law, only authorized U.S. Postal Service employees are allowed to open the mailbox or touch the mail of another person. Servers who tamper with someone's mail or mailbox are subject to criminal charges. Having Trouble Serving Someone?

Why would a process server leave a card?

Process servers often look to leave papers with someone who might answer the door to your home. Despite this being a good idea, they cannot do so with a minor. ... The only time a process server can leave your papers with another adult is if you are evasive, and the other person is an adult household member.

What a process server Cannot do?

A process server cannot break the law when trying to serve papers, such as trespassing or breaking and entering. Therefore, a process server needs to understand how to become creative at times without crossing the line and doing something they are not supposed to do.