LUG, I was very disappointed that BU IT's suggestion for moving ACS mail to BU GMail for Education was to use IMAP on a desktop client: 2) Move, by dragging, any message(s) that you wish to move from one account to the other. The solution I found was of course an open source one (this uses python): http://offlineimap.org/ https://github.com/nicolas33/offlineimap I am currently migrating a few thousand messages without them touching the local machine. There are a couple of idiosyncrasies that I found, and didn't find well documented on the web. The "remoterepository" field makes sense, you set it to BU ACS. The "localrepository" need to be set to GMail's IMAP server. The upside of doing it this way is that it turns your folder structure into nested "GMail Labels" this can even be paired with the "Nested Labels" GMail Labs feature to recreate your folder structure. I still need to upload my Local Mail, but this saved me a bunch of bandwidth, and does logical syncing so you can make sure that everything is setup correctly before making the "true" cut-over by adding a forward to ACS. I hope this helps someone (a cleaned config file is included below). -Ben _dot_offlineimaprc: [general] accounts = sync_bu ui = Curses.Blinkenlights, TTY.TTYUI, Noninteractive.Basic, Noninteractive.Quiet maxsyncaccount = 1 ignore-readonly = no socktimeout = 60 [Account sync_bu] remoterepository = bu_imap localrepository = bu_gmail [Repository bu_imap] type = IMAP remotehost = acs-imap.bu.edu ssl = yes remoteport = 993 remoteuser = $BU_USERNAME remotepass = $BU_PASSWORD maxconnections = 3 holdconnectionopen = no #to only sync only these folders (Test it out): #folderfilter = lambda foldername: foldername in ['INBOX','Test'] #to restrict folders (Sent needs to go to GMail "Sent Mail" but solved) #folderfilter = lambda foldername: foldername not in ['Sent','Trash'] #This renames from 'Sent' to the GMail 'Sent Mail' on the fly: #nametrans = lambda foldername: re.sub('Sent', '[Gmail]/Sent Mail', foldername) [Repository bu_gmail] type = IMAP remotehost = imap.gmail.com remoteuser = $BU_USERNAME remotepass = $BU_GMAIL_SYNC_PASSWORD ssl = yes remoteport = 993 maxconnections = 3 holdconnectionopen = no _________ BU LUG: http://lug.bu.edu. To unsubscribe, email bulug-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field.