What actions in Outlook would cause PR_LAST_MODIFIER_NAME or PR_LAST_MODIFICATION_TIME to be modified?

Question

I am testifying soon as to data I gathered using MFCMAPI in which I determined that the PR_LAST_MODIFICATION_TIME did not match the PR_CREATION_TIME or PR_MESSAGE_DELIVERY_TIME of the message.

What actions in Outlook would cause PR_LAST_MODIFIER_NAME or PR_LAST_MODIFICATION_TIME to be modified? Simply reading, marking the message as unread, and viewing the attachments does not modify these properties in my lab tests.

I am trying to determine what other actions performed by the user or on behalf of the user could cause the PR_LAST_MODIFIER_NAME to no longer list the sender and PR_LAST_MODIFICATION_TIME no longer match Delivery/Creation time.

I had the opportunity many months ago to talk to developer on the MFCMAPI project from Microsoft and I am kicking myself in the gut for not writing down his name.

Any help is appreciated.

Answer 1

Do you mean Steve Griffin?

I am not him, but I think I can easily answer your question - every time IMessage::SaveChanges is called, PR_LAST_MODIFICATION_TIME will be reset.