Opalstack status: meaning of "MX servers blocked"?

ttavoy

I understand (I think!) what it means when SMTP servers are blocked: it means some of the rest of the world refuses to accept mail sent by them.

But I don't understand what this could mean: "We've discovered that the US MX servers are also blocked so we've requested delisting of those as well." It sounds like some of the rest of the world is refusing to send mail to Opalstack, but why would they do that?

sean

ttavoy What it means is that if you use mail forwarding then a forwarded message might be blocked if the final recipient domain is using the Cloudmark list.

I've updated the post to include that info, thanks for pointing out the omission.