[EWS] Create an ItemAttachment of an Item that has attachments itself

Question

I have a message A with some attachments.

Now i create message B and want to attach A as an ItemAttachment. To do that i call CreateAttachment with a MessageType object that represents A. But how do i reference the attachments of message A?

I tried editing my CreateAttachment request and adding an Attachments block into the Message, but receive an ErrorMissingItemForCreateItemAttachment.

Answer 1

You should be able to do that using the MIME content from Message A as the mime content should contain the attachment (MIME encoded).

Cheers
Glen

Answer 2

Thanks Glen, that also caught my eye while testing, it works like that.