How to remove attachment icon in the sent mail when sending an embedded image in as attachment using MAPI/contentID approach

Question

I am trying to send embedded image in outlook mail as attachment using MAPI/contentID approach. The image is received correctly as an embedded image and there is no attachment icon in the received email. But if I check the sent mails folder, it shows an attachment icon there. Does anyone have any idea how to get rid of that? thanks.

Dmitry Streblechenko Dmitry Streblechenko · Accepted Answer · 2020-10-05T16:22:58

Set the SmartNoAttach property (DASL name http://schemas.microsoft.com/mapi/id/{00062008-0000-0000-C000-000000000046}/8514000B) to true.

Take a look at a message with OutlookSpy (click IMessage button).

How to remove attachment icon in the sent mail when sending an embedded image in as attachment using MAPI/contentID approach

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