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Outlook Send HTML Email with Embedded Images and Attachments

See more Outlook Examples

This example sends an HTML email with both embedded images and attachments. Other examples exist for:
  • Sending plain-text email.
  • Sending HTML email.
  • Sending HTML email with embedded images.
  • Sending plain-text email with attachments.

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

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integer li_rc
integer li_Success
oleobject loo_Http
integer li_BCrlf
oleobject loo_SbHtmlBody
oleobject loo_JpgStarfish
oleobject loo_JpgHedgeHogs
oleobject loo_Attach1
oleobject loo_Attach2
oleobject loo_Json
oleobject loo_Resp

li_Success = 0

// 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.

loo_Http = create oleobject
li_rc = loo_Http.ConnectToNewObject("Chilkat.Http")
if li_rc < 0 then
    destroy loo_Http
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// 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).

loo_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...
li_BCrlf = 1
loo_SbHtmlBody = create oleobject
li_rc = loo_SbHtmlBody.ConnectToNewObject("Chilkat.StringBuilder")

loo_SbHtmlBody.AppendLine("<html>",li_BCrlf)
loo_SbHtmlBody.AppendLine("<head>",li_BCrlf)
loo_SbHtmlBody.AppendLine("<meta http-equiv=~"Content-Type~" content=~"text/html; charset=utf-8~">",li_BCrlf)
loo_SbHtmlBody.AppendLine("<meta content=~"text/html; charset=utf-8~">",li_BCrlf)
loo_SbHtmlBody.AppendLine("</head>",li_BCrlf)
loo_SbHtmlBody.AppendLine("<body bgcolor=~"#FFFFFF~">",li_BCrlf)
loo_SbHtmlBody.AppendLine("<font face=~"Calibri~">This is a test <b>HTML email with embedded images</b>.<br>",li_BCrlf)
loo_SbHtmlBody.AppendLine("<br>",li_BCrlf)
loo_SbHtmlBody.AppendLine("<img alt=~"~" src=~"cid:starfish~"><br>",li_BCrlf)
loo_SbHtmlBody.AppendLine("<img alt=~"~" src=~"cid:hedgehogs~"><br>",li_BCrlf)
loo_SbHtmlBody.AppendLine("</font>",li_BCrlf)
loo_SbHtmlBody.AppendLine("</body>",li_BCrlf)
loo_SbHtmlBody.AppendLine("</html>",li_BCrlf)

// Load the embedded image files.
loo_JpgStarfish = create oleobject
li_rc = loo_JpgStarfish.ConnectToNewObject("Chilkat.BinData")

loo_JpgStarfish.LoadFile("qa_data/jpg/starfish.jpg")
loo_JpgHedgeHogs = create oleobject
li_rc = loo_JpgHedgeHogs.ConnectToNewObject("Chilkat.BinData")

loo_JpgHedgeHogs.LoadFile("qa_data/jpg/hedgehogs.jpg")

// Load files that are to be attached (not inline images)
loo_Attach1 = create oleobject
li_rc = loo_Attach1.ConnectToNewObject("Chilkat.BinData")

loo_Attach1.LoadFile("qa_data/pdf/fishing.pdf")
loo_Attach2 = create oleobject
li_rc = loo_Attach2.ConnectToNewObject("Chilkat.BinData")

loo_Attach2.LoadFile("qa_data/msword/sample.docx")

// 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 with
// two embedded images and two attachments.
// 
// The only difference between an embedded inline image and an attachment is that the
// inline image must have a cid that corresponds to the "cid:" found in the "src" attribute
// of an IMG tag within the HTML body of the email.  (The inline image is also marked as "isInline",
// whereas the attachments are not, but I don't know if this actually makes a difference..)
// 

// 	{
// 	  "message": {
// 	    "subject": "Sample HTML Email with Embedded Images and Attachments",
// 	    "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"
// 	       },
// 	       {
// 	         "@odata.type": "#microsoft.graph.fileAttachment",
// 	         "name": "fishing.pdf",
// 	         "contentType": "application/pdf",
// 	         "size": <theActualSize>,
// 	         "isInline": false,
// 	         "contentBytes": "base64_data_here"
// 	       },
// 	       {
// 	         "@odata.type": "#microsoft.graph.fileAttachment",
// 	         "name": "sample.docx",
// 	         "contentType": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
// 	         "size": <theActualSize>,
// 	         "isInline": false,
// 	         "contentBytes": "base64_data_here"
// 	       }
// 	    ]
// 	  },
// 	  "saveToSentItems": true
// 	}
// 
// Build the above JSON.
loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

loo_Json.UpdateString("message.subject","Sample HTML Email with Embedded Images and Attachments")
loo_Json.UpdateString("message.body.contentType","html")
loo_Json.UpdateString("message.body.content",loo_SbHtmlBody.GetAsString())

loo_Json.UpdateString("message.toRecipients[0].emailAddress.name","Chilkat Software")
loo_Json.UpdateString("message.toRecipients[0].emailAddress.address","admin@chilkat.io")
loo_Json.UpdateString("message.toRecipients[1].emailAddress.address","chilkat.support@gmail.com")
loo_Json.UpdateString("message.ccRecipients[0].emailAddress.name","Chilkat Blog")
loo_Json.UpdateString("message.ccRecipients[0].emailAddress.address","admin@cknotes.com")

loo_Json.UpdateString("message.attachments[0].~"@odata.type~"","#microsoft.graph.fileAttachment")
loo_Json.UpdateString("message.attachments[0].name","starfish.jpg")
loo_Json.UpdateString("message.attachments[0].contentType","image/jpeg")
loo_Json.UpdateInt("message.attachments[0].size",loo_JpgStarfish.NumBytes)
loo_Json.UpdateBool("message.attachments[0].isInline",1)
// This contentId must match the "cid:" in the HTML
loo_Json.UpdateString("message.attachments[0].contentId","starfish")
loo_Json.UpdateNull("message.attachments[0].contentLocation")
loo_Json.UpdateBd("message.attachments[0].contentBytes","base64",loo_JpgStarfish)

loo_Json.UpdateString("message.attachments[1].~"@odata.type~"","#microsoft.graph.fileAttachment")
loo_Json.UpdateString("message.attachments[1].name","hedgehogs.jpg")
loo_Json.UpdateString("message.attachments[1].contentType","image/jpeg")
loo_Json.UpdateInt("message.attachments[1].size",loo_JpgHedgeHogs.NumBytes)
loo_Json.UpdateBool("message.attachments[1].isInline",1)
// This contentId must match the "cid:" in the HTML
loo_Json.UpdateString("message.attachments[1].contentId","hedgehogs")
loo_Json.UpdateNull("message.attachments[1].contentLocation")
loo_Json.UpdateBd("message.attachments[1].contentBytes","base64",loo_JpgHedgeHogs)

loo_Json.UpdateString("message.attachments[2].~"@odata.type~"","#microsoft.graph.fileAttachment")
loo_Json.UpdateString("message.attachments[2].name","fishing.pdf")
loo_Json.UpdateString("message.attachments[2].contentType","application/pdf")
loo_Json.UpdateInt("message.attachments[2].size",loo_Attach1.NumBytes)
loo_Json.UpdateBool("message.attachments[2].isInline",0)
loo_Json.UpdateBd("message.attachments[2].contentBytes","base64",loo_Attach1)

loo_Json.UpdateString("message.attachments[3].~"@odata.type~"","#microsoft.graph.fileAttachment")
loo_Json.UpdateString("message.attachments[3].name","sample.docx")
loo_Json.UpdateString("message.attachments[3].contentType","application/vnd.openxmlformats-officedocument.wordprocessingml.document")
loo_Json.UpdateInt("message.attachments[3].size",loo_Attach2.NumBytes)
loo_Json.UpdateBool("message.attachments[3].isInline",0)
loo_Json.UpdateBd("message.attachments[3].contentBytes","base64",loo_Attach2)

loo_Json.UpdateBool("saveToSentItems",1)

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

// Send the HTTP POST (i.e. send the HTML email)
loo_Resp = create oleobject
li_rc = loo_Resp.ConnectToNewObject("Chilkat.HttpResponse")

li_Success = loo_Http.HttpJson("POST","https://graph.microsoft.com/v1.0/me/sendMail",loo_Json,"application/json",loo_Resp)
if li_Success = 0 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_Http
    destroy loo_SbHtmlBody
    destroy loo_JpgStarfish
    destroy loo_JpgHedgeHogs
    destroy loo_Attach1
    destroy loo_Attach2
    destroy loo_Json
    destroy loo_Resp
    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 loo_Resp.StatusCode <> 202 then
    loo_Json.Load(loo_Resp.BodyStr)
    loo_Json.EmitCompact = 0
    Write-Debug loo_Json.Emit()
    Write-Debug "Failed, response status code = " + string(loo_Resp.StatusCode)
else
    Write-Debug "Outlook HTML Mail Sent."
end if



destroy loo_Http
destroy loo_SbHtmlBody
destroy loo_JpgStarfish
destroy loo_JpgHedgeHogs
destroy loo_Attach1
destroy loo_Attach2
destroy loo_Json
destroy loo_Resp