IP Address Tracing for Email Investigation

I need a professional who can assist with tracing a private IP address linked to a fictitious email account used for defamation purposes.

I have access to the email and its metadata, and my plan is to gather more evidence after identifying the IP address.

Ideal skills and experience for this job include:
- Proficiency in cybersecurity and IP tracing
- Legal knowledge or experience
- Prior experience dealing with defamation cases
- Strong investigative skills
- Ability to handle sensitive information with discretion

Please note, I have not yet consulted with any cybersecurity or legal experts. Your expertise will be pivotal in this matter.