Sounds good. zmprov should be the entry point for account migration. Since it already supports batch mode via a text file this is the easiest way. So all the export scripts/apps should generate output in a format that zmprov will accept. We here at Zimbra can help with any questions or changes to zmprov to make this easier. You can add forward addresses and aliases with zmprov as well. For contacts you can just export to .csv for import, or use our SOAP api to import them live.
For mail if all these servers supoprt IMAP then imapsync is your firend. Lots of folks including us here at Zimbra use it to move mail into Zimbra. |