For me, it's that all data that resides within the received email is mine. There's no outside force pre-scanning my receiving emails to display advertisements.

For me, it's that all data that resides within the received email is mine. There's no outside force pre-scanning my receiving emails to display advertisements. I can create as many alias, mailboxes I prefer. Overall the freedom is soothing. I to have never had emails denied but then again I'm using colocation based hosting, so my IP block is one that's never been used before.