According to Neowin, Microsoft is aggressively pushing partners to switch to the new Outlook experience that began deploying by default in May for Microsoft 365 customers on Windows. The company is now offering its App Assure service completely free to help transition COM add-ins to web add-ins without downtime. Microsoft claims many customers have already worked with their engineers through this platform to ensure compatibility. The tech giant is highlighting a streamlined interface with AI integration and reduced total cost of ownership as key benefits. This push coincides with new Copilot features for Outlook unveiled at Ignite 2025. Partners can reach out through [email protected] to access these free transition services.
The Outlook adoption struggle
Here’s the thing – Microsoft really needs this push to work. When your own users are calling your flagship email client “hot garbage,” you’ve got a problem. And let’s be honest, forcing a major interface change on business users is always risky. People get comfortable with their workflows, especially when it comes to email where efficiency matters.
But Microsoft isn’t just relying on goodwill here. They’re throwing resources at the problem. Free engineering support? That’s not cheap. It shows how serious they are about getting people off the old platform. The question is whether enough features and stability will materialize to win over skeptical users.
Where this fits in the email wars
Look, Microsoft isn’t just competing against other email clients here. They’re fighting against entire productivity ecosystems. Google Workspace has been gaining ground, and Slack/Teams integration has changed how people communicate. Outlook needs to be more than just an email client now – it has to be the hub for everything work-related.
The AI integration through Copilot is their big play. Basically, they’re betting that smart features will overcome interface complaints. But will it work? When you’re dealing with mission-critical business communication, reliability often trumps shiny new features. And right now, the reliability perception isn’t exactly stellar.
What this means for partners
For businesses relying on custom Outlook integrations, this free migration support could be a lifesaver. COM add-ins are the backbone of many workflow automations, and rebuilding them from scratch would be expensive. Microsoft’s offering to handle the translation to web add-ins removes a major barrier.
Still, I wonder how many partners will jump at this. Free service is great, but migration always carries risk. And when you’re dealing with enterprise clients, downtime isn’t just inconvenient – it’s expensive. The promise of “no downtime” sounds good on paper, but anyone who’s been through major software transitions knows there are always surprises.
The timing is interesting too. With all the new Copilot features coming, Microsoft clearly wants everyone on the same platform to maximize their AI investment. They’re essentially subsidizing the transition to create a larger addressable market for their premium AI tools. Smart move, but will partners see it that way?
