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Distinguish between embedded and file attachments in html emails

Aspose.Email Product Family
#1

Hi,

i have some problems in processing attachments. I want to distinguish between embedded attachments (like graphics etc.) and file attachments.

Is use the attachment properties PR_ATTACH_CONTENT_ID_A and PR_ATTACH_CONTENT_ID_W to detect embedded attachments.

The code looks like this

public static void AttachmentTest()
{
string strFileName = “c:\temp\HtmlMail2.msg”;

Console.WriteLine(string.Format(“Processing mail {0} …”, strFileName));

MapiMessage msg = MapiMessage.FromFile(strFileName);

foreach (MapiAttachment attach in msg.Attachments)
{
if (attach.Properties.Contains(MapiPropertyTag.PR_ATTACH_CONTENT_ID_A) || attach.Properties.Contains(MapiPropertyTag.PR_ATTACH_CONTENT_ID_W))
{
Console.WriteLine(string.Format(“Embedded Attachment {0}”, attach.DisplayName));
}
else
{
Console.WriteLine(string.Format(“Attached File {0}”, attach.DisplayName));
}
}
msg = null;
}

If i run the code with the attached Html-Mail then all attachment are identified as embedded. The displayname of the attached file is empty. If i open the mail with MS Outlook 2010 then outlook shows the attched file SKMBT_C45111072510081.pdf.

.net runtime 2.0
Aspose.Email 1.1.0.0

Best regards, Martin

#2

internal bugid#4337

#3

Hi,


Thank you for your inquiry.

We have logged an investigative ticket (id: 32220) in our tracking system to look further into this issue. As soon as we receive any updates we will post them here for your reference.

We apologize for your inconvenience.
#4

Hi,


Thank you for your patience.

Please check the below source code for your reference. You can use it with latest version of Aspose.Email for .NET v1.3.0.

C#

var mapi = MapiMessage.FromFile(“HTMLMail2.msg”);
foreach (var att in mapi.Attachments)
{
if (att.Properties.Contains(0x7FFD0003) && att.Properties[0x7FFD0003].GetInt32() == 8)
{
Console.WriteLine("Embedded, inline or linked Attachment File Name: " + att.LongFileName);
}
else
{
Console.WriteLine("Regular Attachment File Name: " + att.LongFileName);
}
}

Please also note that, with the release of Aspose.Email for .NET v1.4.0 [scheduled in last quarter of January 2012], you will be able to use the enumeration MapiPropertyTag.PR_ATTACHMENT_FLAG instead of value 0x7FFD0003.
#5
Hello Babar,

somehow thats not working for me to distinguish those attachments.

however this works for me:

C#
var mapi = MapiMessage.FromFile("HTMLMail2.msg"); foreach (var att in mapi.Attachments) { if (mapi.BodyHtml.Contains(att.DisplayName)) { Console.WriteLine("Embedded, inline or linked Attachment File Name: " + att.LongFileName); } else {
Console.WriteLine("Regular Attachment File Name: " + att.LongFileName); } }

with regards,

Jitte Dooper
#6

Hi Jitte,


Thank you for providing your solution to this problem. I have checked the sample source and it seems to work for all embedded images.

I really appreciate your help in this.