This particular post is about connecting a gmail account. Upon connecting to gmail, none of the message in my Sent Items folder are brought across to Office 365. This is a problem.
Not a whole lot of additional detail to give here. Why wasn't this implemented?
When using the Outlook desktop client, messages can be moved manually from one box to another; I have tested this with single messages and it works. However, I don't at all trust a desktop client to handle porting thousands of messages at once (i.e. Ctrl-A, Ctrl-drag/drop) because Outlook doesn't seem to support huge batch operations well.
Moreover, trying to break up my boxes into arbitrary batches for porting over isn't an acceptable solution either, because A) trial and error with respect to batch size is a horrible approach, and B) a task such as this, for large amounts of emails, will become prone to manual error.
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