PowerMAPI is a PowerShell module that provides access to most MAPI actions via PowerShell Cmdlets. PowerMAPI lets you access PST files, Exchange and Office365 mailboxes, Public Folders, and even Outlook Profile information.
As a PowerShell module PowerMAPI provides you with local code that is a wrapper over the complexity of Microsoft's primary API for email: MAPI. PowerMAPI is written 100% in .NET managed code and is designed with the peculiarities of .NET and PowerShell. Object lifetime, garbage collection, and memory management were and are part of the design.