All of your mail has automatically been transferred over from Zimbra, but there are a few items you'll need to move manually (and re-establish sharing if they were shared in Zimbra). Follow the instructions under each of these sections below:

1. Calendar
2. Address Books (Contacts)
3. Signature
4. Mail Filter
5. Tasks
6. Documents
7. Briefcase Items

It's a good idea to print the Google Migration Checklist for Webmail Users to make sure you don't miss anything.

Calendar

The important thing to remember about Google Calendars is that, unlike Zimbra, only your primary calendar in Google affects your free/busy time, because it is directly linked to your email address. If you had two Zimbra calendars, for example "Work" and "Personal", that both included appointments, you should probably import both into your Google primary calendar to avoid scheduling conflicts. If you use additional calendar for things like birthday reminders, those can be kept in separate calendars as they don't affect your free/busy time. You'll need to export each of your calendars from Zimbra and import them into Google Apps. You'll also need to re-share them.

Use the following links to work through transferring your Zimbra calendars to Google

Move your Zimbra calendar to Google Apps

Re-sharing your calendars

Using iCal with Google Apps

If you prefer, you can watch these video tutorials:

Moving your Zimbra calendar to Google Apps watch online | download QuickTime .mov

Sharing calendars in Google Apps watch online | download QuickTime .mov

Address Books (Contacts)

Zimbra automatically added everyone you ever emailed to your "Emailed Contacts" Address Book. Make sure you move this one if you relied on this as your source for all  email addresses. You'll need to export each of your Address Books from Zimbra and import them into the Contacts area in Google Apps. You'll also need to recreate any groups you maintained.

Use the following link to work through transferring your Zimbra address books to Google:

Moving your Zimbra contacts to Google Apps

If you prefer, you can watch the video tutorial:

Moving your Zimbra contacts to Google Apps  watch online | download QuickTime .mov

Signature

Your signature block(s) can't be transferred over to Google from Zimbra, so you'll need to set these up again separately. If you used more than one signature in Zimbra, a plug-in module for Google Apps is provided to handle this.

Use the following links to work through establishing your email signatures in Google:

Adding a signature (Google Help file)

Using the Canned Response plug-i to enable support for multiple signature blocks

Mail Filters

Your mail filters can't be transferred over to Google from Zimbra, so you'll need to set these up again separately. You'll find it easier to do this if you have both Zimbra and Google Apps open at the same time, so you can view your Zimbra filters while creating your Google filters.

Use the following link to work through recreating your mail filters in Google:

Using filters (Google Help file)

If you prefer, you can watch the video tutorial: watch online | download QuickTime .mov

Tasks

Your task lists can't be transferred over to Google from Zimbra, so you'll need to set these up again separately.You'll find it easier to do this if you have both Zimbra and Google Apps open at the same time, so you can view your Zimbra tasks while creating your Google tasks.

Use the following link to work through recreating your taski list in Google:

Using task lists

Documents

Documents created in Zimbra do not export well to other applications, and Google is unable to recognize Zimbra documents. Unfortunately, the only way to transfer documents over is to copy a Zimbra document into a new Google Doc one-by-one.

You can learn more about working with Google Docs by clicking the following link:

Using Google docs

Briefcase Items

If you stored files in your Zimbra Briefcase, you'll need to download them.  If you want to access them online, you can either place them on your Network Folder or upload them to Google Docs. If you don't need the files online, you can skip the step of uploading to Google Docs.

You can learn more about using Google Docs by clicking the following link:

Moving your Zimbra Briefcase to Google Docs

If you prefer, you can watch the video tutorial watch online | [download QuickTime.gov