Given that one can upload emails to gmail via IMAP, via methods such as:
Is there a method to prove that emails in gmail are legitimate? If one took an email to court, and the other party claimed the email was manipulated via IMAP, how would one marshal a defence?
Obviously in cases where federal agents freeze gmail accounts, the data in it holds value should one not have expected a super-user to be aware of a coming freeze before hand... but that's not what I'm interested in.
I'm interested in means of PROVING that emails are original and legitimate against claims of IMAP upload manipulation.