+ Shrugging-off an act of felony being committed.
Nevertheless, it does pose a more general question. Given that in many workplaces the employer has access to your work email/account, how can one prove that he/she did not send a particular email?
Nevertheless, it does pose a more general question. Given that in many workplaces the employer has access to your work email/account, how can one prove that he/she did not send a particular email?
You don't, that's up to the police, prosecutors and forensics experts to handle.
Even though I only worked peripherally with digital forensics people, and I know a lot about how email/computers/networks work, I know enough to know that I could never get away with forging an email (especially not one where anything serious depended on it).
In a more broader way, how can one prove innocence if their company use the employee's credentials (ID/email/etc.) to drop the blame on them? Wouldn't it be the employees words against the employer, while at the same time the employer has the control over the data/evidence?
I mean, if this particular case is real, someone has performed a serious crime, risking years in jail, for a comparably trivial reason and small gain - it's not an indication that the perpetrator is likely to be risk-averse, meticulous and smart.
If we were looking at a forged email as a part of a sophisticated campaign for extracting secret information or defrauding very large amounts of money, then it would be likely that the forgery is done carefully by skilled people thoroughly removing all traces - but for a reason like this? not likely. Heck, digital "intelligence ops" by major governments sometimes leave traces due to some sloppiness or carelessness, it's very hard to be sufficiently thorough.