Outlook can connect to a Zimbra server in three different ways:

1. ActiveSync
   • New feature in Outlook
   • Great for mobile devices
   • Syncs mail, contacts, calendars and tasks
   • Server-side message store
2. IMAP
   • Syncs only mail
   • Server-side message store
3. POP
   • Oldest protocol
   • Does not sync
   • Only downloads unread messages in Inbox folder
   • Client-side message store

When working with Outlook accounts, you can use the Control Panel applet Mail to manage Outlook profiles and accounts.

ActiveSync support is relatively new to Outlook. This may become our preferred method, if it works out.

Newer versions of Outlook (2013 & 2016) support the ActiveSync protocol.

Unlike other protocols, ActiveSync can synchronize mail, contacts, calendars and tasks.

Sometimes it is best to create a new Outlook Profile, then add an account to the new profile.

From Windows Control Panel → Mail:

1. E-Mail Accounts → New
2. Select Manual setup
   1. Click Next
3. Select Exchange ActiveSync
   1. Click Next
4. Modify the settings as per the image
   • User name is full e-mail address
   1. Click Next
5. Close the test window
6. Click Finish

From within Outlook:

1. File → Account Settings → Account Settings again
2. Select the Zimbra ActiveSync account → Change

Microsoft Outlook support for the standard IMAP protocol is much improved in newer versions (Outlook 2013, Outlook 2016 and newer).

DO NOT make any spelling errors! The vast majority of problems come from spelling errors.

If you find yourself struggling to get a new account working, delete the account completely, then restart Outlook and try again.

From within Outlook:

1. File → Account Settings → Account Settings again
2. Select the Zimbra IMAP account → Change
3. Modify the settings as per the image
4. Select More Settings → Outgoing Server (tab)
   1. Select My outgoing server requires authentication
   2. Select Use same settings as my incoming mail server
5. Select Advanced (tab)
   1. Modify the settings as per the image

Download: https://mail.yourdomain.com/zimbra/downloads/index.html

User Guide: https://www.zimbra.com/docs/ne/8.6.0/zcs_connector_for_user_guide

Admin Guide: https://www.zimbra.com/docs/ne/8.6.0/zcs_connector_for_outlook_guide

The connector will run on various versions of Windows and with various versions of Outlook, but you should check before installing. See the first pages of either manual.