[CryDeTaan]

No I do not keep any emails, and a valid concern for sure.

I mean I do not have an easy way to show anyone. But I have thought about how to deal with such a request, and my thinking was to have a video call with someone and show. For the moment that is how I would solve that. Not ideal but ¯\_(ツ)_/¯

[enriquto]

The only way to relieve yourself of the burden of proof is by never having the actual emails of anybody. Would it be possible to offer your service under that constraint? That would be extremely cool!