Which of the following is NOT a recommended practice for process servers?

Using excessive force to deliver documents is indeed not a recommended practice for process servers. The role of a process server is to deliver legal documents in a professional, courteous, and lawful manner. Employing excessive force undermines the integrity of the process and could lead to legal repercussions for the server, as well as potentially harm or intimidate the individual being served.

Conversely, researching the defendant's background helps process servers locate individuals effectively, ensuring the service is accomplished within the legal time frames. Being punctual and respectful reflects professionalism and can facilitate smoother interactions, while knowing the legal requirements of service ensures that the process server adheres to the law, thus protecting the validity of the service and the overall legal process. Understanding these principles is essential for effective and lawful service of process.