I been playing around with some WebDAV code with Pocket IE (on a IPAQ)to display a screen that shows me the last 5 emails I received and the last 5 I sent. Because my IPAQ sits on my desk most of the day doing nothing I found this pretty handy as it alloys me to see at a glance which bit of email I need to take action on and what I've replied to recently. Geting the code to work inside of pocket IE was a little bit of a challendge had to switch to using Jscript and I found out that a few things that worked fine in the desktop version of IE don't work the way you really want them to (or at all) in the pocket version of IE but I did manage to come up with the following piece of working code. Basically what it does is performs two separate WebDAV queries the first one of the Inbox and then the Sent Items folder. I used the Range header to limit the result set of the queries to 5 rows. The Range header is pretty cool it kind of a sudo SQL TOP statement. I've added some simple HTML that displays unread email in a different colour and bold and the last part of the code sets up a ongoing timer which does a query of the mailbox every 25 seconds to see if any new mail has arrived or the read status of a mail has change. It does this by making another query of the inbox and then compares the received time of the last mail it received to the one it retrieved in the first query of that email along with the read status as well. If any of these are different then it initiates a page reload. The page itself is just a HTM page you copy to your IPAQ (after you mod the code to put in your mailbox and server you need to connect to). I've put a copy of the code up here
As well as EWS and Remote PowerShell (RPS) other mail protocols POP3, IMAP and SMTP have had OAuth authentication enabled in Exchange Online (Official announcement here ). A while ago I created this script that used Opportunistic TLS to perform a Telnet style test against a SMTP server using SMTP AUTH. Now that oAuth authentication has been enabled in office365 I've updated this script to be able to use oAuth instead of SMTP Auth to test against Office365. I've also included a function to actually send a Message. Token Acquisition To Send a Mail using oAuth you first need to get an Access token from Azure AD there are plenty of ways of doing this in PowerShell. You could use a library like MSAL or ADAL (just google your favoured method) or use a library less approach which I've included with this script . Whatever way you do this you need to make sure that your application registration https://docs.microsoft.com/en-us/azure/active-directory/develop/quickstart-register-