Thunderbird with SOGo Connector
From dmfswiki
If you use the Thunderbird SOGo Connector Plugin to sync your contacts with any non-SOGo server you'll need to apply a patch in order to make it load updates from the server.
Update With Thunderbird 10 and SOGo Connector 10 you don't need this patch anymore!
Please see this bug: 0001098: GroupDavSynchronizer: obsolete DAV:sync-response after DAV:sync-collection request?.
For all who don't know how to apply the patch I've prepared a patched version of the file at sync.addressbook.groupdav.js. Just search a file with this name in your Thunderbird profile and replace it with the patched file.
More issues
Even if you got it working there are some annoying issues:
- Photos that you added on your phone are not preserved when you edit a contact with Thunderbird.
- If you change the type of an email or phone number (e.g. from work to home) on the phone, Thunderbird will show the entry in both fields (if you didn't specify a new value for the old type as well).
- You can add up to 5 phone numbers (work, home, mobile, pager, fax) only.
- You can add 2 email addresses only.
- Like in SOGo, work email is mapped to "Email" and home email is mapped to "Additional Email" and vice versa.