This is related to this question: http://serverfault.com/questions/20550/ways-to-get-a-bounceback-report-for-my-newsletter-application
Let's say I'm generating email addresses like this when I send out newsletters to identify bounces and unsubscribe them from my newsletter: email@example.com
I assume I'd use this in the return-path, right?
Then how would I set it up in postfix to collect all these addresses prefixed with "bounce-" into one mailbox?
Finally, I've heard people mention a soft bounce vs. a hard bounce. Can someone explain the different and how they should be counted to know when to permanently remove someone from an email newsletter?