N.M. Stat. § 50-12-1
Employer immunity from liability for references on former
employee.
When requested to provide a reference on a former or current employee, an
employer acting in good faith is immune from liability for comments about the former
employee's job performance. The immunity shall not apply when the reference
information supplied was knowingly false or deliberately misleading, was rendered with
malicious purpose or violated any civil rights of the former employee.