Can you qualify that third point? What's considered reliance? What's the name of some place that stopped using email? I can see a drop in businesses that ar

Can you qualify that third point? What's considered reliance? What's the name of some place that stopped using email? I can see a drop in businesses that are running their own email, and that outsourcing maybe represents a big shift in terms of how they see it as "not critical and must be kept in house" but I don't know that they rely upon it much less. How are these businesses messaging and communicating?