Comment by Kankuro

I stopped using my own domain (managed by an association) for sending to outlook.com and yahoo because I know it's a fight that will be a net loss for me. Senders will change provider (because it's critical) before these major actor starts planning a fix. And in an organisation, if a business person asks the IT to fix the issue, the only way to do it in a timely manner is to changer provider. The requester will not care if it's Microsoft fault, sending mail works at home and in other companies, not here, do something, business comes first, bla bla bla.