> The unfortunate thing is that we also find the demographic of customers here in the UK still using btinternet.com email closely aligns with customers who tend

> The unfortunate thing is that we also find the demographic of customers here in the UK still using btinternet.com email closely aligns with customers who tend to be more problematic… Maybe this is just wishful thinking, but if the more problematic customers are losing you money, then isn't it a valid business case to stop doing business with them given that you can identify them in advance? Wishful thinking because it'd be really nice to create a feedback loop such that users of email providers start to understand their reputation, which would make provider reputation for deliverability matter, which might improve their behaviour. But most businesses probably aren't in a position to turn away business like that.