Outlook's new requirements for high volume sender

Microsoft is stepping up its fight against phishing and spam with new DMARC, SPF, and DKIM requirements for high-volume senders. If your organization sends over 5,000 emails per day to Outlook, Hotmail and/or Live recipients, compliance isn’t optional— it’s a must to avoid possible email rejections and deliverability issues starting on May 5th of this year.

Click here for the full article by Microsoft.