I think it's very important for customers to be able to trust the business though. This means the business relationship should have clearly defined terms and both parties should be expected to follow them. Unfortunately, the trend is for services to have take it or leave it terms and to essentially be written to hold them blameless while letting them do whatever they want.
A legally sound strategy, but not one that embodies trust. And I'd argue being able to trust your email provider is very important.
