In Utah, person claiming defamation must prove that: The information was false and unprivileged. In publishing the statements, the defendant acted with the “requisite degree of fault.” When applied to a private individual, this requires simple negligence, while a public figure must prove actual malice.
In general, pursuing a defamation lawsuit may be worthwhile if: The defamatory statement(s) are demonstrably false and have caused significant harm to your reputation or career. You have strong evidence to support your claim. The potential damages are substantial enough to justify the costs and risks of litigation.
Utah Code Section 76-9-404.
If you decide to do it alone, your letter should state the specific defamatory statements made, confirm that they are defamatory, indicate the reputational harm caused, demand an apology and retraction of those statements, and demand that they cease making further statements failing which you will sue them.
Receiving a cease and desist letter is a serious issue. It indicates the sender's intention to pursue you for the alleged wrongdoing if you do not follow their demands. Receiving a cease and desist letter does not necessarily mean you will end up in Court.
Defamation Law in Utah Utah law requires that a plaintiff, the person claiming defamation, proves certain elements for a successful claim. These elements include the false statement being “published” to a third party, the statement causing harm, and the statement being made without adequate research into the truth.