I'm using GW8 and Outlook with GW7 Outlook connector.
To quickly transfer mails from the old Cyrus IMAP server I've synced them to the IMAP agent of Groupwise by means ot the imapsync tool.
The mails are transferred fine, but when you reply to them, they don't get sent. The reason is more than likely that the addresstype of the sender is "NGW". When I set it manually to "INTERNET", the mail is sent just fine.
I could instruct my users to do this every time they want to send a transferred mail, but for some reason I don't think they will like this.

Anyone any idea how I can fix this in bulk?