In my quest to make Outlook more like gMail, here’s a VB Script to move your Sent Items back into your Outlook inbox. I’d recommend enabling group-by-conversations in the settings.
Update the firstname.lastname@example.org instances with the name of your secondary email account.
The SentItems and SentItems2 variables reference the Sent Items folders in the primary and secondary accounts. The SentItems_ItemAdd and SentItems2_ItemAdd subroutines handle the move.
Start Outlook, hit Alt-F11 and paste this into the ThisOutlookSession object: