Xojo Plugin Requires Chilkat v11.0.0+
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.
Chilkat Xojo Plugin Downloads

Xojo Plugin
Dim success As Boolean
success = False

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

Dim http As 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...
Dim bCrlf As Boolean
bCrlf = True
Dim sbHtmlBody As New Chilkat.StringBuilder
success = sbHtmlBody.AppendLine("<html>",bCrlf)
success = sbHtmlBody.AppendLine("<head>",bCrlf)
success = sbHtmlBody.AppendLine("<meta http-equiv=""Content-Type"" content=""text/html; charset=utf-8"">",bCrlf)
success = sbHtmlBody.AppendLine("<meta content=""text/html; charset=utf-8"">",bCrlf)
success = sbHtmlBody.AppendLine("</head>",bCrlf)
success = sbHtmlBody.AppendLine("<body bgcolor=""#FFFFFF"">",bCrlf)
success = sbHtmlBody.AppendLine("<font face=""Calibri"">This is a test <b>HTML email</b>.<br>",bCrlf)
success = sbHtmlBody.AppendLine("</font>",bCrlf)
success = sbHtmlBody.AppendLine("</body>",bCrlf)
success = 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.
Dim json As New Chilkat.JsonObject
success = json.UpdateString("message.subject","Sample HTML email")
success = json.UpdateString("message.body.contentType","html")
success = json.UpdateString("message.body.content",sbHtmlBody.GetAsString())
success = json.UpdateString("message.toRecipients[0].emailAddress.name","Chilkat Software")
success = json.UpdateString("message.toRecipients[0].emailAddress.address","admin@chilkat.io")
success = json.UpdateString("message.toRecipients[1].emailAddress.address","chilkat.support@gmail.com")
success = json.UpdateString("message.ccRecipients[0].emailAddress.name","Chilkat Blog")
success = json.UpdateString("message.ccRecipients[0].emailAddress.address","admin@cknotes.com")
success = json.UpdateBool("saveToSentItems",True)

//  Send the HTTP POST (i.e. send the HTML email)
Dim resp As New Chilkat.HttpResponse
success = http.HttpJson("POST","https://graph.microsoft.com/v1.0/me/sendMail",json,"application/json",resp)
If (success = False) Then
    System.DebugLog(http.LastErrorText)
    Return
End If

//  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) Then
    success = json.Load(resp.BodyStr)
    json.EmitCompact = False
    System.DebugLog(json.Emit())
    System.DebugLog("Failed, response status code = " + Str(resp.StatusCode))
Else
    System.DebugLog("Outlook HTML Mail Sent.")
End If