>but couldn't that be determined by just checking for a bounce when a message is sent to it
The fewer times you bounce, the better your chances of not being marked as a spammer.
This could also be useful for an ecommerce site, where you want to be able to easily contact the buyer if there's a delay, address correction needed, etc. People typo their own email at a rate that's surprising.
The fewer times you bounce, the better your chances of not being marked as a spammer.
This could also be useful for an ecommerce site, where you want to be able to easily contact the buyer if there's a delay, address correction needed, etc. People typo their own email at a rate that's surprising.