Alex Bignell

If you don't want to end up on one of the block lists, I'd recommend avoiding the word "disposable" entirely. Your addresses don't "melt" any more than any other email service. In the same way that AltMails allows you to "unsubscribe", a Gmail user could always delete their account, or (more realistically) mark a sender as spam. The real value in your product is the security and privacy it can...