(VB.NET) Mailgun Send Simple Email

See more Mailgun Examples

Send a simple email using Mailgun.

For more information, see https://documentation.mailgun.com/en/latest/api-sending.html#sending

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

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

Dim http As New Chilkat.Http
Dim success As Boolean

' Implements the following CURL command:

' curl -s --user 'api:SENDING_API_KEY' 
' 	 https://api.mailgun.net/v3/YOUR_DOMAIN_NAME/messages 
' 	 -F from='Your Name <mailgun@YOUR_DOMAIN_NAME>' 
' 	 -F to='Joe Example <joe@example.com>' 
' 	 -F subject='Hello Joe Example' 
' 	 -F text='Congratulations Joe Example, you just sent an email with Mailgun!  You are truly awesome!'

' Use the following online tool to generate HTTP code from a CURL command
' Convert a cURL Command to HTTP Source Code

http.Login = "api"
http.Password = "sending_api_key"'  Replace with your actual sending API key.

Dim req As New Chilkat.HttpRequest
req.HttpVerb = "POST"
req.Path = "/v3/YOUR_DOMAIN_NAME/messages"
req.ContentType = "multipart/form-data"

' Change YOUR_DOMAIN_NAME to something like "mg.your-domain.com".
req.AddParam("from","Your Name <mailgun@YOUR_DOMAIN_NAME>")
req.AddParam("to","Joe Example <joe@example.com>")
req.AddParam("subject","Hello Joe Example")
req.AddParam("text","Congratulations Joe Example, you just sent an email with Mailgun!  You are truly awesome!")

Dim resp As Chilkat.HttpResponse = http.SynchronousRequest("api.mailgun.net",443,True,req)
If (http.LastMethodSuccess = False) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


Dim sbResponseBody As New Chilkat.StringBuilder
resp.GetBodySb(sbResponseBody)
Dim jResp As New Chilkat.JsonObject
jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = False

Debug.WriteLine("Response Body:")
Debug.WriteLine(jResp.Emit())

Dim respStatusCode As Integer = resp.StatusCode
Debug.WriteLine("Response Status Code = " & respStatusCode)
If (respStatusCode >= 400) Then
    Debug.WriteLine("Response Header:")
    Debug.WriteLine(resp.Header)
    Debug.WriteLine("Failed.")

    Exit Sub
End If



' Sample JSON response:
' (Sample code for parsing the JSON response is shown below)

' {
'   "id": "<20210429234809.1.2D550E1C94D3D98F@sandbox0e542e4c577f4bbb98c8bf6b6bca727b.mailgun.org>",
'   "message": "Queued. Thank you."
' }

' Sample code for parsing the JSON response...
' Use the following online tool to generate parsing code from sample JSON:
' Generate Parsing Code from JSON

Dim id As String = jResp.StringOf("id")
Dim message As String = jResp.StringOf("message")