Recovering Possible Losses from Business E-mail?
2 attorney answers
It’s not realistic because it’s impossible almost to Treece who the actual person is and then you have to sue them where are they located
As part of making a legal claim, you need to be able to prove your damages; i.e., present some evidence of the monetary value of what you lost due to the actions of the other party. The statement in your question that "[t]here's no telling what leads and potential contracts were lost" is a problem - there needs to be at least some evidence of the value lost. Probable the method of proof most often used revolves around a showing of past income versus a decline in recent income, although other methods also exist.
So, you first need a way of telling what your loss is. You cannot realistically pursue a claim unless you can point to at least some reasonable, evidence-based estimate of your total monetary loss.
There may be other problems as well, but that jumps out from your question.
Please note this answer does not constitute legal advice, and should not be relied on since each situation is fact-specific, and it is impossible to evaluate a legal problem without a comprehensive consultation and review of all the facts and documents. This answer does not create an attorney-client relationship. You are strongly advised to contact an attorney to obtain legal advice before taking or refraining from taking any action with respect to the above.