B4X
B4X
Outlook Send HTML Email with Embedded Images
See more Outlook Examples
This example sends an HTML email with embedded images. Other examples exist for:- Sending plain-text email.
- 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 B4X Downloads
Dim success As Boolean = False
' 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.
Dim http As ChilkatHttp
http.Initialize("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.
' After the
' <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 with embedded images</b>.<br>
' <br>
' <img alt="" src="cid:starfish"><br>
' <img alt="" src="cid:hedgehogs"><br>
' </font>
' </body>
' </html>
' Build the HTML body...
Dim bCrlf As Boolean = True
Dim sbHtmlBody As ChilkatStringBuilder
sbHtmlBody.Initialize
sbHtmlBody.AppendLine("<html>", bCrlf)
sbHtmlBody.AppendLine("<head>", bCrlf)
sbHtmlBody.AppendLine("<meta http-equiv=" & Chr(34) & "Content-Type" & Chr(34) & " content=" & Chr(34) & "text/html; charset=utf-8" & Chr(34) & ">", bCrlf)
sbHtmlBody.AppendLine("<meta content=" & Chr(34) & "text/html; charset=utf-8" & Chr(34) & ">", bCrlf)
sbHtmlBody.AppendLine("</head>", bCrlf)
sbHtmlBody.AppendLine("<body bgcolor=" & Chr(34) & "#FFFFFF" & Chr(34) & ">", bCrlf)
sbHtmlBody.AppendLine("<font face=" & Chr(34) & "Calibri" & Chr(34) & ">This is a test <b>HTML email with embedded images</b>.<br>", bCrlf)
sbHtmlBody.AppendLine("<br>", bCrlf)
sbHtmlBody.AppendLine("<img alt=" & Chr(34) & Chr(34) & " src=" & Chr(34) & "cid:starfish" & Chr(34) & "><br>", bCrlf)
sbHtmlBody.AppendLine("<img alt=" & Chr(34) & Chr(34) & " src=" & Chr(34) & "cid:hedgehogs" & Chr(34) & "><br>", bCrlf)
sbHtmlBody.AppendLine("</font>", bCrlf)
sbHtmlBody.AppendLine("</body>", bCrlf)
sbHtmlBody.AppendLine("</html>", bCrlf)
' Load the image files.
Dim jpgStarfish As ChilkatBinData
jpgStarfish.Initialize
jpgStarfish.LoadFile("qa_data/jpg/starfish.jpg")
Dim jpgHedgeHogs As ChilkatBinData
jpgHedgeHogs.Initialize
jpgHedgeHogs.LoadFile("qa_data/jpg/hedgehogs.jpg")
' 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 with Embedded Images",
' "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"
' }
' }
' ],
' "attachments": [
' {
' "@odata.type": "#microsoft.graph.fileAttachment",
' "name": "starfish.jpg",
' "contentType": "image/jpeg",
' "size": 6497,
' "isInline": true,
' "contentId": "starfish",
' "contentLocation": null,
' "contentBytes": "base64_data_here"
' },
' {
' "@odata.type": "#microsoft.graph.fileAttachment",
' "name": "hedgehogs.jpg",
' "contentType": "image/jpeg",
' "size": 48845,
' "isInline": true,
' "contentId": "hedgehogs",
' "contentLocation": null,
' "contentBytes": "base64_data_here"
' }
' ]
' },
' "saveToSentItems": true
' }
'
' Build the above JSON.
Dim json As ChilkatJsonObject
json.Initialize
json.UpdateString("message.subject", "Sample HTML Email with Embedded Images")
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.UpdateString("message.attachments[0]." & Chr(34) & "@odata.type" & Chr(34), "#microsoft.graph.fileAttachment")
json.UpdateString("message.attachments[0].name", "starfish.jpg")
json.UpdateString("message.attachments[0].contentType", "image/jpeg")
json.UpdateInt("message.attachments[0].size", jpgStarfish.NumBytes)
json.UpdateBool("message.attachments[0].isInline", True)
' This contentId must match the "cid:" in the HTML
json.UpdateString("message.attachments[0].contentId", "starfish")
json.UpdateNull("message.attachments[0].contentLocation")
json.UpdateBd("message.attachments[0].contentBytes", "base64", jpgStarfish)
json.UpdateString("message.attachments[1]." & Chr(34) & "@odata.type" & Chr(34), "#microsoft.graph.fileAttachment")
json.UpdateString("message.attachments[1].name", "hedgehogs.jpg")
json.UpdateString("message.attachments[1].contentType", "image/jpeg")
json.UpdateInt("message.attachments[1].size", jpgHedgeHogs.NumBytes)
json.UpdateBool("message.attachments[1].isInline", True)
' This contentId must match the "cid:" in the HTML
json.UpdateString("message.attachments[1].contentId", "hedgehogs")
json.UpdateNull("message.attachments[1].contentLocation")
json.UpdateBd("message.attachments[1].contentBytes", "base64", jpgHedgeHogs)
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)
Dim resp As ChilkatHttpResponse
resp.Initialize
success = http.HttpJson("POST", "https://graph.microsoft.com/v1.0/me/sendMail", json, "application/json", resp)
If success = False Then
Log(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
json.Load(resp.BodyStr)
json.EmitCompact = False
Log(json.Emit)
Log("Failed, response status code = " & resp.StatusCode)
Else
Log("Outlook HTML Mail Sent.")
End If