If a person makes a false accusation against me in written, but not a published form, such as email, is there a legal process I can enact which would force the accusing party to either retract the claim or prove it?
posting using a dummy account to protect myself and all concerned.
Background.
As the DPO in my company, I'm handling the SAR of a former employee. It is a sensitive subject, as the employee has started process against the company against their treatment during their employment. To ensure data privacy, I've been in contact with the person by email to ensure they understand their rights under GDPR and explain why some data regarding other people is being redacted from the information requested.
In response, the person has insinuated that the information they received has been edited in a way which harms his defence in his case against the company. If this insinuation becomes an actual accusation, what legal recourse do I have on this?
If the accusation is printed publicly, libel laws would come into force. Since it is not public, I'm not sure if I am protected by law from this outright lie.