Email deliverability isn't a guaranteed thing though. Usually that's fine, but if the argument is we're going to charge you because you didn't take action, wouldn't you need to prove it was either sent or received? Maybe I'm just really old school, but I'd think registered mail or something would be required in that case.
IANAL, but when I served on a jury most (if not all) of the emails relating to the case were not admissible as evidence because there was no way to prove authenticity, delivery, etc.
>"wouldn't you need to prove it was either sent or received?"
[IANAL] Probably not (in the US). In the US, anyone can sue anyone else over anything. [Not that I doubt email notification might present problems in court - but who is going to court over $6000?]
