These are not real email addresses, in so much that they are delivered to the customer, but they are only good for a few days/weeks until Apple or the user no longer needs it and it is deleted.  The email addresses are easy to spot as they contain a regular patter like:   randomword.otherrandomword.number@icloud.com  these emails get delivered but then are deleted after a few days...and the email address that remains is not good and all the subsequent campaigns simply bounce and are undeliverable.   ... View more