ADModify.NET is a tool primarily utilized by Exchange and Active Directory administrators to facilitate bulk user attribute modifications. See http://blogs.technet.com/exchange/archive/2004/08/04/208045.aspx for launch details

Exchange Automatic Replies Administrator is a PowerShell GUI tool for Helpdesk and Sysadmins to set a users' Out-Of-Office without using the command line.

The application presents statistics based on people with whom a user has corresponded or from whom he or she has received emails.

Multi-tenant control panel to help manage your Active Directory, Exchange, and Citrix environment.

This area is used for providing information and discussions about the CodePlex website.

Craig's Utility Library contains various utility classes used in both web and desktop programming. The library contains classes to handle tasks such as encryption, compression, Microformats, serialization, dealing with Exchange, Active Directory, Twitter, Netflix, threads, etc.

A brand new community driven release, DNN xChange is a Q&A module in the spirit of Stack Overflow with DNN Social Groups, Profile and Journal integraton.

Exchange Migration Assessment Tool

A .NET class library that simplifies access to Microsoft Exchange Server data. It works with all versions of Exchange going back to Exchange 2000. It uses WebDAV to communicate with the Exchange Store and therefore does not need to be installed on the Exchange Server itself.

This tool is designed to migrate one at a time, each public folder from exchange to document library on a sharpeoint site.

This is a large sample which uses and demonstrates the usage of the EWS Managed API and raw EWS calls. Harvest the source or use to troubleshoot EWS issues.

Read a calendar from an Exchange account, write out the corresponding iCalendar (.ICS) file.

Exchange Spigot for NodeXL enables Microsoft Excel plugin NodeXL to collect messaging data from the Microsoft Exchange Server and display that data as a graph. It is developed in C#.

ExPerfWiz is a powershell based script to help automate the collection of performance data on Exchange 2007 and Exchange 2010/2013 servers

GALMOD is a perfect web interface for active directory end users, enabling them to keep their information updated. Plus administrators can use this to change passwords, unlock users, manage user groups etc. It contains a ppt file explaining its major features.

Tool used to manage E-mail in Exchange 2003 Intelligent Message Filter Archive folder.

Allows administrators to remotely view and manage permissions for any folder in a mailbox, as well as manage delegates.

MFCMAPI provides access to MAPI stores to facilitate investigation of Exchange and Outlook issues and to provide developers with a sample for MAPI development.

NodeXL is an Excel 2007/2010/2013 template for viewing network graphs, with a set of .NET Framework 3.5 class libraries that can be used to add network graphs

An integration pack for Opalis extending functionality to exchange calendaring features.