The Exchange Server 2019 Capacity Calculator allows you to calculate the hardware and virtual system requirements for your Exchange 2019 environment.
Office Cheat Sheets for Outlook
These cheat sheets provide a quick overview of the basic functions in Outlook across all platforms.
Microsoft Support and Recovery Assistant for Office 365 (SaRA)
The Microsoft Support and Recovery Assistant for Office 365 (or SaRA for short) allows you to fix problems with Outlook and other Office 365 products.
MFCMAPI
MFCMAPI provides access to MAPI stores to facilitate investigation of Exchange and Outlook issues and to provide developers with a sample for MAPI development.
Updated Outlook Holiday (.hol) file
This standalone download contains the most recent holiday definitions for Outlook.
Visio Stencils for Microsoft Office and Office 365
If you are using Visio and are drawing architecture diagrams, charts or posters about your Office client and server infrastructure, then these Visio Stencils are a must have.
Business Contact Manager for Outlook 2010 and Outlook 2013
Business Contact Manager (BCM) is a free Customer Relationship Management (CRM) tool for Outlook targeted at small business owners.
Microsoft Exchange and Microsoft Outlook Standards Documentation
The Microsoft Exchange and Microsoft Outlook standards documentation describes how Exchange and Outlook support industry messaging standards and Requests for Comments (RFCs) documents about iCalendar, Internet Message Access Protocol – Version 4 (IMAP4), and Post Office Protocol – Version 3 (POP3).
Microsoft Exchange Server Protocol Documentation
The Microsoft Exchange protocol documentation provides detailed technical specifications for the Microsoft protocols that are implemented and used by Microsoft Exchange to interoperate or communicate with other products. It also provides technical specifications for extensions to industry-standard and other published protocols that are used by Microsoft Exchange.
Microsoft Office Configuration Analyzer Tool (OffCAT)
The Outlook Configuration Analyzer Tool (OCAT ) provides a quick and easy method to analyze your Microsoft Office Outlook profile for common configurations that may cause problems in Outlook. This can be very useful for busy Help Desk personnel when end-users call for help with Outlook or when you want to identify possible issues with Outlook proactively.