> But as long as they only add you if you have actually sent spam this should be ok. What's this mean though? How are they judging? I've worked for a company

> But as long as they only add you if you have actually sent spam this should be ok. What's this mean though? How are they judging? I've worked for a company that soley sent transactional email from the domain and IP address in question (basically just receipts and password reset. Not even our (fully-opt in, optted-out-by-default) newsletters was ever sent from this domain and IP. Every few weeks we'd have to contend with some blacklist because a user had (mistakenly?) marked one of our emails as spam. From my experience, it's an extremely inexact and sensitive, but neither precise nor accurate, process. (Not to mention the time one of the major providers just began blackholeing the same server despite SPF and DKIM. No rejection message in the logs, just many, many, many customer support calls about missing receipts.)