Skip to main content

Simple Exchange Email client for Powershell using the EWS Managed API

** Updated download to fix issue with 2010 SP1, self signed certs and search ***

One thing that is useful now and again when you are testing different problems and configurations on Exchange is to have a Mail client that isn’t Outlook or OWA. Back in the days there used to be a Simple Mapi client called the Exchange client which disappeared after 5.0. While this isn’t a attempt to replace it or to be an end user mail client at all it’s a great little test bench script that allows you to get in and look at mailbox and the items in that mailbox, Download attachments,export single emails, look at Message headers, search for emails and if there is any particular problem you want to tackle in regards to certain properties it’s something that can be very easily adapted to fit an specific problem.

How it works

This script presents a Winform GUI that allows you to interact with a mailbox and present it into a displayable view back to a user. Okay I could go on like this all day (seriously!!) this is actually what it looks like when you fire it up.



First you need to put the Email address of the mailbox you want to open then click open mailbox it will then attempt to do an autodiscover. Why Autodiscover is great it doesn’t always work so there is the ability to put the CAS URL for ews eg
“https://servername.com/ews/exchange.asmx”.

Use default credentials means the script will try to use the currently logged on user when accessing the mailbox otherwise you can fill in the credential settings.

When you hit the open mailbox button the script does a Deep folder Traversal starting at the Mailbox root and then builds a foldertree of the result. An event is added to the folder tree so when you click any of the leaves it will fire an event that then does a Findfolder operation to retrieve items from the selected folder. It will only return the number of items listed in the number box which is 100 by default so if you where to click the inbox it will only return the first 100 items if you want it to return more or less you need to change this number value. The search functions allow you to refine which items are returned or you can create different searches based on From, Subject and Body it does a Substring search when you select each of these properties. The search works by building the correct searchfilter string based on the dropdown value you select and the text that’s entered in the text box.

The ShowMessage button does a Get-Item operation and retrieves the message and body as Text and displays the result. The Show header lets you look at the Message header and the download Attachment and export message allows you to download message and attachments which I've described in another post here.

There is really on two requirements for this script the first is you need the have the EWS Managed API installed which you can download from here.The only other requirement is to have Powershell.

I've put a download of this script here

Popular posts from this blog

The MailboxConcurrency limit and using Batching in the Microsoft Graph API

If your getting an error such as Application is over its MailboxConcurrency limit while using the Microsoft Graph API this post may help you understand why. Background   The Mailbox  concurrency limit when your using the Graph API is 4 as per https://docs.microsoft.com/en-us/graph/throttling#outlook-service-limits . This is evaluated for each app ID and mailbox combination so this means you can have different apps running under the same credentials and the poor behavior of one won't cause the other to be throttled. If you compared that to EWS you could have up to 27 concurrent connections but they are shared across all apps on a first come first served basis. Batching Batching in the Graph API is a way of combining multiple requests into a single HTTP request. Batching in the Exchange Mail API's EWS and MAPI has been around for a long time and its common, for email Apps to process large numbers of smaller items for a variety of reasons.  Batching in the Gr...

Exporting and Uploading Mailbox Items using Exchange Web Services using the new ExportItems and UploadItems operations in Exchange 2010 SP1

Two new EWS Operations ExportItems and UploadItems where introduced in Exchange 2010 SP1 that allowed you to do a number of useful things that where previously not possible using Exchange Web Services. Any object that Exchange stores is basically a collection of properties for example a message object is a collection of Message properties, Recipient properties and Attachment properties with a few meta properties that describe the underlying storage thrown in. Normally when using EWS you can access these properties in a number of a ways eg one example is using the strongly type objects such as emailmessage that presents the underlying properties in an intuitive way that's easy to use. Another way is using Extended Properties to access the underlying properties directly. However previously in EWS there was no method to access every property of a message hence there is no way to export or import an item and maintain full fidelity of every property on that item (you could export the...

EWS Create Mailbox folder Powershell module for Exchange and Office365 Mailboxes

This is a rollup post for a couple of scripts I've posted in the past for creating folders using EWS in an Exchange OnPremise or Exchange online Cloud mailbox. It can do the following Create a Folder in the Root of the Mailbox Create-Folder -Mailboxname mailbox@domain.com -NewFolderName test Create a Folder as a SubFolder of the Inbox Create-Folder -Mailboxname mailbox@domain.com -NewFolderName test -ParentFolder '\Inbox' Create a Folder as a SubFolder of the Inbox using EWS Impersonation Create-Folder -Mailboxname mailbox@domain.com -NewFolderName test -ParentFolder '\Inbox' -useImpersonation Create a new Contacts Folder as a SubFolder of the Mailboxes Contacts Folder Create-Folder -Mailboxname mailbox@domain.com -NewFolderName test -ParentFolder '\Contacts' -FolderClass IPF.Contact Create a new Calendar Folder as a SubFolder of the Mailboxes Calendar Folder Create-Folder -Mailboxname mailbox@domain.com -NewFolderName test -Parent...
All sample scripts and source code is provided by for illustrative purposes only. All examples are untested in different environments and therefore, I cannot guarantee or imply reliability, serviceability, or function of these programs.

All code contained herein is provided to you "AS IS" without any warranties of any kind. The implied warranties of non-infringement, merchantability and fitness for a particular purpose are expressly disclaimed.