Embedded images as linked resource in Gmail is being sent as an attachment

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1

Hello folks, I’m trying to send an email to be opened in gmail web app, and saw this reference (among many references here): Send Embedded Images in an Email

The first two approaches didn’t work, but the third one, while more technical and complicated, worked. The problem is it worked only when embedding a single image. I need to attach several images, but when I do it via this approach, it sends the images as attachments instead. What seems to be causing this issue?

2

@earldantedumayag

Can you try as below


Imports System.IO
Imports System.Net.Mail
Imports System.Net.Mime

' Define the email content IDs and image paths
Dim contentId1 As String = "image1"
Dim contentId2 As String = "image2"
Dim imagePath1 As String = "C:\images\image1.png"
Dim imagePath2 As String = "C:\images\image2.jpg"

' Create a new email message
Dim message As New MailMessage()
message.From = New MailAddress("sender@yourdomain.com")
message.To.Add("recipient@theirdomain.com")
message.Subject = "My email with inline images"

' Define the HTML email content with image sources set to cid:content-id
Dim html As String = "
<html>
  <body>
    <p>Here are my images:</p>
    <img src='cid:" & contentId1 & "'>
    <img src='cid:" & contentId2 & "'>
  </body>
</html>
"
Dim htmlView As AlternateView = AlternateView.CreateAlternateViewFromString(html, Nothing, MediaTypeNames.Text.Html)
message.AlternateViews.Add(htmlView)

' Load the images from disk and attach them to the email message
Dim image1 As LinkedResource = New LinkedResource(imagePath1, MediaTypeNames.Image.Png)
image1.ContentId = contentId1
htmlView.LinkedResources.Add(image1)

Dim image2 As LinkedResource = New LinkedResource(imagePath2, MediaTypeNames.Image.Jpeg)
image2.ContentId = contentId2
htmlView.LinkedResources.Add(image2)

' Connect to the SMTP server and send the email
Dim client As New SmtpClient("smtp.yourdomain.com")
client.Send(message)

Hope this may help you

Thanks,
Srini

3

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