Comment Here's *MY* deal, Microsoft (Score 1) 53
Here's the deal. If you send more than 5,000 messages per day to Outlook.com addresses and you're not properly set up with SPF, DKIM, and DMARC, your emails may never arrive.
Being properly "setup" on SPF, DKIM and DMARC isn't the only requirement by MS to drop emails. Another primary requirement is for Microsoft to actually care about their customers' emails and actually deliver them, instead of simply pretending to be an email service.
So here's my deal to you, Microsoft: you stop dropping valid emails into the void without any warnings/valid reasons, and I won't bring about a class-action lawsuit against you. Deal?