Microsoft sets final deadline for exchange, Skype server security

Microsoft will give customers a final six-month window to secure Exchange Server 2016/2019 and Skype for Business 2015/2019, ending April 14, 2026. Organizations must opt in—and pay—for these updates, which won’t appear in public channels. The company stressed it won’t extend this grace period again. Many firms have delayed migrations, and Microsoft is now drawing a hard line as support expiration nears.