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(C# UWP/WinRT) Outlook Send HTML Email

This example sends an HTML email. Other examples exist for:

  • Sending plain-text email.
  • Sending HTML email with embedded images.
  • Sending email with attachments.
  • Sending HTML email with embedded images and attachments.

Note: This example requires Chilkat v9.5.0.68 or greater.

This example applies to: Exchange Online | Office 365 | Hotmail.com | Live.com | MSN.com | Outlook.com | Passport.com

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

// Important: This example requires Chilkat v9.5.0.68 or greater.

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.Http http = new Chilkat.Http();

// Use your previously obtained access token here:
// See the following examples for getting an access token:
//    Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint).
//    Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint).
//    Refresh Access Token (Azure AD v2.0 Endpoint).
//    Refresh Access Token (Azure AD Endpoint).

http.AuthToken = "MICROSOFT_GRAPH_ACCESS_TOKEN";

// To send mail, we'll POST to the following endpoint:
// 
// POST /users/{id | userPrincipalName}/sendMail
// 
// (The special keyword "me" may be used in place of a principal name.)
// 

// This example will send HTML email containing the following HTML body:

// 	<html>
// 	<head>
// 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
// 	<meta content="text/html; charset=utf-8">
// 	</head>
// 	<body bgcolor="#FFFFFF">
// 	<font face="Calibri">This is a test <b>HTML email</b>.<br>
// 	</font>
// 	</body>
// 	</html>

// Build the HTML body...
bool bCrlf = true;
Chilkat.StringBuilder sbHtmlBody = new Chilkat.StringBuilder();
sbHtmlBody.AppendLine("<html>",bCrlf);
sbHtmlBody.AppendLine("<head>",bCrlf);
sbHtmlBody.AppendLine("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">",bCrlf);
sbHtmlBody.AppendLine("<meta content=\"text/html; charset=utf-8\">",bCrlf);
sbHtmlBody.AppendLine("</head>",bCrlf);
sbHtmlBody.AppendLine("<body bgcolor=\"#FFFFFF\">",bCrlf);
sbHtmlBody.AppendLine("<font face=\"Calibri\">This is a test <b>HTML email</b>.<br>",bCrlf);
sbHtmlBody.AppendLine("</font>",bCrlf);
sbHtmlBody.AppendLine("</body>",bCrlf);
sbHtmlBody.AppendLine("</html>",bCrlf);

// The body of the POST request contains JSON that specifies the email subject, body,
// recipients, etc.  This example will build the following JSON HTML email:
// 

// 	{
// 	  "message": {
// 	    "subject": "Sample HTML Email",
// 	    "body": {
// 	      "contentType": "html",
// 	      "content": "The HTML body goes here..."
// 	    },
// 	    "toRecipients": [
// 	      {
// 	        "emailAddress": {
// 		  "name": "Chilkat Software",
// 	          "address": "admin@chilkat.io"
// 	        }
// 	      },
// 	      {
// 	        "emailAddress": {
// 	          "address": "chilkat.support@gmail.com"
// 	        }
// 	      }
// 	    ],
// 	    "ccRecipients": [
// 	      {
// 	        "emailAddress": {
// 		  "name": "Chilkat Blog",
// 		  "address": "admin@cknotes.com"
// 	        }
// 	      }
// 	    ]
// 	  },
// 	  "saveToSentItems": true
// 	}
// 

// Build the above JSON.
Chilkat.JsonObject json = new Chilkat.JsonObject();
json.UpdateString("message.subject","Sample HTML email");
json.UpdateString("message.body.contentType","html");
json.UpdateString("message.body.content",sbHtmlBody.GetAsString());
json.UpdateString("message.toRecipients[0].emailAddress.name","Chilkat Software");
json.UpdateString("message.toRecipients[0].emailAddress.address","admin@chilkat.io");
json.UpdateString("message.toRecipients[1].emailAddress.address","chilkat.support@gmail.com");
json.UpdateString("message.ccRecipients[0].emailAddress.name","Chilkat Blog");
json.UpdateString("message.ccRecipients[0].emailAddress.address","admin@cknotes.com");
json.UpdateBool("saveToSentItems",true);

// -------------------------------------------------------------
// Important: This example requires Chilkat v9.5.0.68 or greater.
// -------------------------------------------------------------

// Send the HTTP POST (i.e. send the HTML email)
Chilkat.HttpResponse resp = await http.PostJson2Async("https://graph.microsoft.com/v1.0/me/sendMail","application/json",json.Emit());
if (http.LastMethodSuccess != true) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

// The send succeeded if the response status code = 202.
// In the success case, there is no response body.  (We just get the response code to know that it succeeded.)
if (resp.StatusCode != 202) {
    json.Load(resp.BodyStr);
    json.EmitCompact = false;
    Debug.WriteLine(json.Emit());
    Debug.WriteLine("Failed, response status code = " + Convert.ToString(resp.StatusCode));
}
else {
    Debug.WriteLine("Outlook HTML Mail Sent.");
}


 

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