How to access the context menu for an attachment in Outlook "New Message dialog

Question

I have an Outlook VSTO addin. I can successfully modify the context menu for attachments "received" by the user (either in the email message received or in the preview window.) I cannot figure out how to access the context menu for an attachment for a message being "sent"

Anyone know of the idMso for this context menu or another way to get access to it?

Answer 1

Not all context menus can be customized by developers (there is no idMso values published). You can find possible context menus customizations described in the Extending the User Interface in Outlook 2010 article.