Using win32com and/or active_directory, how can I change the conversation of a MailItem?

Question

In Python w/ Outlook 2007, using win32com and/or Active Directory, how can I change the conversation of an email? Is there a way to change the mapping of a ConversationIndex to a ConversationTopic?

I can successfully change the subject of a MailItem by creating a new MailItem, but when I view the folder in "Conversation" view mode, the new MailItem uses the old Subject as the conversation name.

a_mail_item.ClearConversationIndex() doesn't seem to have an effect, even when I save the item after the call.

Doing this sequence prints the same ConversationIndex and ConversationTopic each time:

print item.ConversationIndex
print item.ConversationTopic
item.ClearConversationIndex()
item.Save()
print item.ConversationIndex
print item.ConversationTopic

It seems that I can manipulate some [private] interface dictionaries, though it doesn't propagate when I do the Save().

item._prop_map_put_['ConversationTopic']
item._prop_map_get_['ConversationTopic']

Answer 1

Please see this.