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Simple Mail Gui's for the REST API on Office365 and Exchange 2016

As I've been adding new cmdlets to my Exch-REST PowerShell module I've been knocking up against some of the limitations and frustrations of working within a console environment. One of them is if say I find some Messages within a Mailbox which needs further investigation for whatever reason, It good to have an easy way of opening up that message to take a look at the content that isn't normally easy to view in the cmdline like the html body of a message and maybe I want to download any attachments or MessageHeaders without needing to open Outlook or OWA. A number of years ago I created a simple EWS mail client that just acted as a simple Email client using EWS so I decided to port this to the REST API and include it in the Exch-Rest Module. I also broke out two of the winforms from this simple client to enable just reading a particular Message you may have found using any of the other cmldets as well as a simple Form to Send a New Message with or without an Attachment.

So with Version 2.7 of the Exch-REST Module you can now use the

Start-EXRMailClient cmdlet which will start the small mail client which will use the underlying Exch-REST Module cmldets to open and browse Mailbox Mail folders, Read Items from a Folder you select in the TreeView, Show Internet Message Headers or Download attachments from messages in the datagrid eg


Getting Messages from the Inbox


Showing the content of a Message


or show the Message Headers



You can either start the Mailbox client using Start-EXRMailClient cmdlet with no parameters or pass in a Mailbox and AccessToken you maybe working with and it will automatically enumerate the Folders from that Mailbox using the token passed in.

To use the Read Message Form on a message you have found in the cmdline through using another cmdlet eg to open the last message in the Inbox you could use


$Items = Get-WellKnownFolderItems -MailboxName gscales@datarumble.com -AccessToken $AccessToken -WellKnownFolder Inbox -TopOnly:$true -Top 1

Invoke-EXRReadEmail -ItemRESTURI $Items[0].ItemRESTURI -AccessToken $AccessToken -MailboxName gscales@datarumble.com
To Start the New Message form just use

Invoke-EXRNewMessagesForm -MailboxName gscales@datarumble.com -AccessToken $AccessToken
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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.