Migration to Google Apps

Things worth knowing about migrating to Google Apps

Methods to migrate

Drag and drop between IMAP folders in Thunderbird/Opera et.al.
Google Chrome with GMail Offline
google-email-uploader (Win)
Emailchemy (client)
Larch

imapsync
YippieMove (server)
Google mentions these

Here focus is on using Larch:

Prepare source mailbox: Here Gmail target mailbox limits come in to play:

• max label length: file path of 40 characters
• max attachment size: 25 MB
• only leaves in the folder/tag hierachy can have emails, ex. in structure folderA/folderB, only folderB can contain emails !