To be fair - as the administrator on the receiving end of corporate email infrastructure - I pick and choose which blacklists and methods I'm going to use based

To be fair - as the administrator on the receiving end of corporate email infrastructure - I pick and choose which blacklists and methods I'm going to use based on the needs of my users. If a list causes us to lose legitimate email consistently and we can't work with them, or they take up too much time, I won't use it. What we accept in our door is completely up to US, not any outsider. As for sending email out- sure that's a problem -but we keep ourselves off blacklists (Which you CAN do - you simply avoid email marketing altogether, and stop annoying your users with anything but password resets and things they ask for in realtime - the rest you do through the web).