(VB.NET) Outlook Send Email

See more Outlook Examples

This example sends a simple plain-text email. Other examples exist for:

• Sending HTML email.
• Sending HTML email with embedded images.
• Sending email with attachments.
• Sending HTML email with embedded images and attachments.

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

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

' 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).

Dim jsonToken As New Chilkat.JsonObject
Dim success As Boolean = jsonToken.LoadFile("qa_data/tokens/microsoftGraph.json")
If (success = False) Then
    Debug.WriteLine(jsonToken.LastErrorText)
    Exit Sub
End If

http.AuthToken = jsonToken.StringOf("access_token")

' To send email, 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.)
' 

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

' 	{
' 	  "message": {
' 	    "subject": "Meet for lunch?",
' 	    "body": {
' 	      "contentType": "Text",
' 	      "content": "The new cafeteria is open."
' 	    },
' 	    "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
json.UpdateString("message.subject","Meet for lunch?")
json.UpdateString("message.body.contentType","Text")
json.UpdateString("message.body.content","The new cafeteria is open.")
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)


' Send the HTTP POST (i.e. send the email)
Dim resp As Chilkat.HttpResponse = http.PostJson2("https://graph.microsoft.com/v1.0/me/sendMail","application/json",json.Emit())
If (http.LastMethodSuccess <> True) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
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
    json.Load(resp.BodyStr)
    json.EmitCompact = False
    Debug.WriteLine(json.Emit())
    Debug.WriteLine("Failed, response status code = " & resp.StatusCode)
Else
    Debug.WriteLine("Outlook Mail Sent.")
End If