easyEws Updated to 1.0.20

This was more than a patch this time. It was a minor update to two functions:

  • sendMailItem
  • sendPlainTextEmailWithAttachment

There was an issue reported (#12) where the sendMailItem function was not working in IE11. This was because it was created to take an inline object (ES6). Well on IE11 (which only supports ES5), it broke.

So, I fixed sendMailItem to support ES5 and also took the opportunity to add two often requested features of this function:

  • It will now allow you to submit HTML body content or Text. It will also parse the HTML for you if you submit it as is.
  • It will also now allow you to send both file attachment (new), and mail item attachments (original).

Please see the documentation for more information on the updates to this function: https://github.com/davecra/easyEWS#sendMailItem

Also I updated the sendPlainTextEmailWithAttachment function. Under the covers this uses the sendMailItem function. So I had to update it to use the new format so it would work as well. There was no change to it’s features/functionality however.

I did not get to the last item I have had requests for:

  • ability to specify recipients as To/CC/BCC. I will update this at some future date. Also, please let me know if you would like to see this.

Overall, the goal is to have the sendMailItem() function be a full multi-purpose function at some point. It is almost there, but please keep the suggestions coming.

easyEws v1.0.19 Released

There were a couple small bug fixes in the splitGroupsRecursivelyAsync() function. Thank you to Jack for making me aware of the issue as it has now been corrected.

The CDN to the latest versioned instance of the library:


Here is a link to my GitHub:


And it is also able to be installed from NPM with the command:

npm install easyews

easyEws Updated to v1.0.17

There is one major change and one fix in this update:

  1. The library no longer has any dependencies on jQuery. As such all parsing is done with DOMParser and all loops are traditional (for, versus $.each()).

    NOTE: This is a fairly major change as it touches the core asyncEws call, which is at the very core over every call in the library. If you have an issue with this build, please point to the previous build of the library directly. See more below…
  2. The sendPlainTextEmailWithAttachment() function was fixed to submit parameters as a Object versus individually.

The GitHub repository has all previous versions. For example, to access the primary CDN, go to:


If you need to access a specific version (like the last one):


Please let me know if you have any questions or issues.

Script Lab for Outlook. Yeah!

OMG! This is a day I have been waiting for.

I do a LOT of Outlook Web Add-in development. A lot. I have made the move from Visual Studio to Visual Studio Code, from C# to JavaScript and have not looked back. However, there are a few things that make development in this new area difficult and that is rapid prototyping.

For C#, I could always go into VBA and see how the object model would behave when I needed to test a hypothesis. I was able to use VBA as a laboratory for ideas before I codified them into solid C# code in a VSTO Add-in. But there was no such laboratory in the JavaScript web add-in world, until now…

…Script Lab for Outlook has been released. And the best part, it is available in Outlook on Windows, Outlook on Mac and Outlook on the web!

Script Lab in Outlook for Windows
Script Lab for OWA

If you do a lot of Outlook development this will be a godsend. You will now be able to go into Script Lab and test your code ideas before you add them to your more complex add-in.

Open Outlook, go into the Office Store and type “Script Lab” and Script Lab for Outlook should come up in your list. Select and install it. Then open a message in Outlook and you should see the Script Lab items on the Home tab.

Happy coding!

easyEws v1.0.16 Published

I have made a few minor updates to easyEws. First, was a fix for distribution lists with an “&” in the name. The second is a few minor JSDoc updates for better linting. And finally, I changed a couple forEach loops to traditional for loops for performance reasons.

I have published the update to NPM and to my GitHub.

Please let me know if you have any issues or questions.

easyEws v1.0.15 Released

In this latest release I have incorporated my first community pull. A big thank you to Vijay Samtani for adding the sendMailItem. This new addition allows you to create a message to multiple recipients and with zero to many attachments.

Here is a link to the repository: https://github.com/davecra/easyEWS

You can references it in your code:

<script type="text/javascript" src="node_modules/easyews/easyews.min.js"></script>

And you can allow pull it down from NPM:

npm install easyEws

easyEws v1.0.14 released

First off, there is no version 1.0.13. wlEmoticon-winkingsmile.png

For this latest release, I have added one handy new function getParentId(). This function uses the child message “InReplyTo” field to locate the parent message with the same corresponding “InternetMessageId” field. If found, you will get the Id of that parent message. If not found, you will get NULL.

As per usual, to get the latest you can link to the CDN: https://cdn.jsdelivr.net/gh/davecra/easyEws/easyEws.js

Or you can access it from NPM via this command:

npm -install easyews

NOTE: I was informed that I had forgot to update NPM to v1.0.12 per the last release. So I have fixed that and have updated this build on NPM.

easyEws v1.0.12 released

I have updated the easyEws library.

The changes I made in v1.0.11 for ResolveNames were only ES6 compliant and did not work in IE11. Specifically, I defined an ES6 class object versus a more compliant ES3+ function/class. The update was recoded and now functions in IE11.

Additionally, there was a reported issue with recipient aggregation in the getallRecipientsAsync() function. I was using a .forEach() on the recipient array which seemed to be causing problems with larger result sets. So I updated it to use a standard for loop.

Other than that there were no major changes to this version.

easyEws Updated to v1.0.11

It has been a while since I have updated this library, however I have had a few requests.

The first one that I am publishing today is adding the ResolveNames operation. The latest is now on GitHub here. And you can install it using NPM like this:

npm install easyews

Also, I have updated the CDN listing. Before I was using RAWGIT but that has been retired. You can now add the CDN like this:

<!– DEBUG –>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/davecra/easyEws/easyEws.js"></script>
<!– Or, MINIFIED –>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/davecra/easyEws/easyEws.min.js"></script>

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To issue a resolve names you will pass the email address or the display name to the function like this:

async function run() {
var msg = Office.context.mailbox.item;
msg.to.getAsync(function(asyncResult) {
if(asyncResult.status == Office.AsyncResultStatus.Failed) {
} else {
/** @type {Office.EmailAddressDetails[]} */
var recips = asyncResult.value;
// are there any recipients at all
if(recips == null || recips.length == 0) {
$("#recipientResult").html("NO RECIPIENTS");
} else {
/** @type {string} */
var info = "<br/>DISPLAY NAME: " + recips[0].displayName + "<br/>" +
"EMAIL_ADDRESS: " + recips[0].emailAddress + "<br/>" +
"RECIPIENT_TYPE: " + recips[0].recipientType;
easyEws.resolveRecipient(recips[0].emailAddress, function(result) {
if(result == null || result.length == 0) {
info += "<br/>UNRESOLVED</br>";
} else {
info += "<br/>RESOLVED: " + result[0].MailBoxType;
info += "<br/>RESOLVED EMAIL: " + result[0].EmailAddress;
// write tot he form
}, function(error) {
}, function(debug) {

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If you have any suggestions for this library, please ping me.