Issue with Gmail - Embedded images using MailKit

Question

I\'m trying to send emails with embedded images using MailKit. It works well on MS Outlook. However, images do not display as embedded images in Gmail. I tried to attach with \"

Answer 1

Well, first of all, why are you creating System.Net.Mail objects and then simply disposing them without using them in any way?

See this code for what I mean:

LinkedResource inline = new LinkedResource(new MemoryStream(imageData), Image.Jpeg)
{
    ContentId = contentId,
    TransferEncoding = TransferEncoding.Base64,
    ContentLink = new Uri("cid:" + contentId),
};
inline.ContentType.Name = contentId;
inline.ContentType.MediaType = Image.Jpeg;

Let's try this instead:

var contentType = new ContentType ("image", "jpeg");
var contentId = MimeKit.Utils.MimeUtils.GenerateMessageId ();
var image = (MimePart) bodyBuilder.LinkedResources.Add (file, contentType);
image.ContentTransferEncoding = ContentEncoding.Base64;
image.ContentId = contentId;

item.SetAttributeValue ("src", "cid:" + contentId);