Web developer here. The problem here is not with emails but with change.org’s business model, which is reliant on lying to people that their petitions actually mean anything. But, anyone with half a brain cell can easily spot that they don’t have any legal backing whatsoever nor do they do any kind of identity verification, therefore those petitions are completely worthless. They might as well not give a fuck and allow cheating. For all they care, it only boosts counters and makes them appear more popular than they actually are.