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by Jenefey AaronUpdated on 2019-07-25 / Update for iCloud Tips

Meanwhile, CalDAV Mac serves to be the translator that helps plenty of apps to communicate with each other while sharing information. If you set up your CalDAV on your Mac, it becomes highly possible for you to experience all the protocol’s benefits and extended functionality. Sync your iCloud calendar with Outlook for Mac Open a browser window and sign in to your iCloud account. In iCloud, click Calendar. Click the Share Calendar icon next to the calendar you want to configure in Outlook, and make sure Public Calendar is. Click Copy Link. In another browser window.

Believe it or not, the advancement of technology might be as much about politics as it is about breaking the limit of what's possible with the available tools. One example is the interconnectivity. Big companies are preaching about moving everything to the cloud and using our devices as tools to access the data. It means that one platform should be able to sync seamlessly to another.

And yet, even with all these evolution and progress, many people still can't believe that Microsoft still hold back and doesn't allow it's Mac version of flagship calendar application - Outlook - to sync with Apple's iCloud Calendar on the Mac. While on the other hand, users can sync their iCloud Calendar with Outlook on their PC, which is practically the same thing.

Everybody screams for Microsoft to add the feature, but for one or the other reasons that we don't know, the MS Office maker still refuses to do so.

There are lots of people who work with both Mac and Windows and it will be an inconvenience if you need to do everything in your calendar twice - one in the Mac's iCloud Calendar, and one more time in Windows' Outlook, just because Microsoft doesn't want to allow Outlook for Mac to support iCloud Calendar. If you are both the users of Mac iCloud Calendar and MS Outlook, there's no way to sync the two together.Or is it?

The Non-Elegant Way

First, we need to accept that there is no elegant way to enable the sync between iCloud Calendar with Outlook for Mac. There are, however, non-elegant alternatives.

The root problem with this non-compatibility issue is that Outlook for Mac doesn't support Apple iCloud calendar (CalDAV) and contact (CardDAV) synchronization. To fix the problem, we need to overcome the limitation.

Hosting Your Own CalDav and CardDAV Server

Outlook Caldav Synchronizer For Mac

One solution is hosting your own CalDAV and CardDAV server using the free package Baïkal Server, but this requires some expertise and unfortunately, there's no easy way available yet.

Using Google Calendar

The easier, non-techie way is to use third-party calendar service as an intermediary between Outlook for Mac and iCloud Calendar. One obvious choice is Google Calendar. You would want to sync both your Outlook for Mac and iCloud Calendar to Google Calendar to make all data available on both end.

Or to simplify the process, you can totally ditch both Outlook for Mac and iCloud Calendar and totally move to Google Calendar.

Using Windows Outlook

If you have access to a Windows computer, you can sync the iCloud Calendar data to the Windows version of Outlook, and sync the data between Outlook for Windows and Outlook for Mac.

Care for Your iPhone on Mac

Messing with your Calendar data comes with the risk of losing it, and it's not fun losing data that you've build across a long time. So you need to protect the data at all cost. One app that can help you with the task is iCareFone for Mac.

Tenorshare iCareFone for Mac (iPhone Care Pro for Mac) takes a one-click approach to protect, repair, clean, optimize and eventually speed up your iPhone, iPad and iPod. It can help you solve all iOS update/jailbreak stuck easily and let your iPhone/iPad/iPod perform the best.

Communication protocol
PurposeAccess remote scheduling information
IntroducedMarch 2007; 13 years ago
Based onWebDAV
OSI layerApplication
RFC(s)RFC4791, 6638

Calendaring Extensions to WebDAV, or CalDAV, is an Internet standard allowing a client to access scheduling information on a remote server. It extends WebDAV (HTTP-based protocol for data manipulation) specification and uses iCalendar format for the data. The access protocol is defined by RFC4791. It allows multiple client access to the same information thus allowing cooperative planning and information sharing. Many server and client applications support the protocol. Extensions to CalDAV for automated scheduling are also standardized, as RFC6638.

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The CalDAV specification was first published in 2003 as an Internet Draft submitted to the Internet Engineering Task Force (IETF) by Lisa Dusseault. In March 2007, the CalDAV specification was finished and published by the IETF as RFC 4791, authored by Cyrus Daboo (Apple), Bernard Desruissaux (Oracle), and Lisa Dusseault (CommerceNet). CalDAV is designed for implementation by any collaborative software, client or server, that needs to maintain, access or share collections of events. It is developed as an open standard to foster interoperability between software from different implementers.[clarification needed]


The architecture of CalDAVHalo 2 Free Download PC Game Full Version. (partially inherited from the underlying specifications) organizes the data (events, tasks, free-busy info, notes) in directories (collections), where multiple items (resources) reside. The resources and collections can be accessed by one or more users, using standard HTTP and DAV semantics to detect conflicting changes, or to provide locking.

For access control the concept of ACLs are used, so each operation (view, edit, delete etc.) can be denied or granted per user. Therefore, the specification requires that CalDAV servers must support 'WebDAV Access Control Protocol' (RFC 3744).The calendar resources must use iCalendar format, which allows the server to understand and process the data. Parsing the iCalendar items is necessary, because the server has to support a number of calendaring-specific operations such as doing free-busy time reports and expansion of recurring events. With this functionality, a user may synchronize his or her own calendar to a CalDAV server, and share it among multiple devices or with other users. The protocol also supports non-personal calendars, such as calendars for sites or organizations.

Hotmail Caldav



The list of CalDAV clients includes:[1]

  • AgenDAV (Open Source multi-language CalDAV WebClient with AJAX interface)
  • iPhone (version 3.0 or version 2.1 with Remote Calendar)
  • CalDavZAP (Web-based HTML5 / JavaScript application, Open Source)[2]
  • CalDAV Tasksync for Android[3]
  • CalDAV-Sync for Android[4]
  • CalendarSync for Android[5]
  • DAVx⁵ (previously called DAVdroid) for Android (Open Source)[6]
  • EVO Collaborator for Outlook add caldav sync capability to Outlook [7]
  • Evolution (Linux, Unix, Windows) [8]
  • eM Client (Windows)
  • gSyncit[9] (Sync Microsoft Outlook with mobile/tablet device)
  • Horde Groupware[10]
  • iCal4OL (No longer available for new customers)
  • iCal/Calendar.app (Since Mac OS X Leopard !V 10.5)
  • iCal Import/Export CalDAV for Android[11]
  • Mailfence CalDAV client through iCAL/vCAL
  • Sunbird or Thunderbird with the Lightning extension (Linux, Windows, Unix, Mac OS X)
  • OpenSync for Android
  • Outlook CalDav Synchronizer (open source) adds CalDAV support to Microsoft Outlook[12]
  • vdirsyncer synchronizes calendars (and addressbooks) between two storages, e. g. CalDAV (CardDAV) server with a local folder or file.[13]
  • Windows 10, though restricted to certain providers[14]


The list of CalDAV servers includes:[15]

  • AppleDarwin Calendar Server
  • Baikal[16] Lightweight CalDAV+CardDAV server
  • Bedework (former UWCalendar)[17]
  • Bynari Collaboration Suite[18]
  • Chandler Server (Cosmo)
  • CommuniGate Pro Since version 5.2
  • Cyrus IMAP server since version 2.4.17
  • DAViCal[19]
  • DPCalendar[20]
  • Daylite CalDAV Server[21]
  • EGroupware Since version 1.6
  • EVO Mail Server[22]
  • Google Calendar[23]
  • Horde Groupware[10]
  • Icewarp-E-Mail-Server Since version 8.x
  • Kerio Connect[24]
  • Mailfence[25]
  • mod caldav[26]
  • Nextcloud[27]
  • Oracle Communications Calendar Server[28]
  • ownCloud[29]
  • Radicale (CalDAV)[30]
  • SOGo[31]
  • SabreDAV[32]
  • Scalix[33]
  • Synovel CollabSuite[34]
  • Xandikos[35]
  • Zarafa Since la version 6.30.0
  • Zimbra Since version 4.5[36]
  • sync!Egw[37]

See also[edit]

Outlook Caldav Synchronizer For Mac
  • GroupDAV, an effort to create a simplified, straightforward protocol for calendars as well as contacts.
  • Scheduling OSID defines a software interface abstraction for calendaring protocols


  1. ^'CalDAV Clients (English)'. September 18, 2010. Archived from the original on May 23, 2016. Retrieved December 17, 2010.
  2. ^CalDavZAP
  3. ^TaskSync
  4. ^CalDAV-Sync
  5. ^CalendarSync
  6. ^DAVx⁵
  7. ^EVO Collaborator for Outlook
  8. ^'Using a CalDAV calendar'. help.gnome.org. Retrieved February 28, 2019.
  9. ^Fieldston Software
  10. ^ abHorde Groupware
  11. ^iCal Import/Export CalDAV
  12. ^Outlook CalDav Synchronizer
  13. ^https://vdirsyncer.pimutils.org/
  14. ^'Windows 10 can sync email/contacts/calendars with all major providers – chooses to pick winners and losers in the market instead'. Ctrl. Retrieved March 2, 2017.
  15. ^'CalDAV Servers (English)'. Retrieved January 7, 2014.
  16. ^'Baikal'. Archived from the original on November 14, 2015. Retrieved November 8, 2013.
  17. ^'Bedework'. Archived from the original on December 2, 2011. Retrieved November 10, 2015.
  18. ^Bynari Collaboration Suite
  19. ^DAViCal
  20. ^DPCalendar
  21. ^'Daylite CalDAV Server'. Archived from the original on October 15, 2015. Retrieved November 10, 2015.
  22. ^EVO Mail Server
  23. ^Google Calendar
  24. ^Kerio Connect
  25. ^Mailfence
  26. ^mod_caldav auf SourceForge
  27. ^Nextloud
  28. ^Oracle Communications Calendar Server
  29. ^ownCloud
  30. ^Radicale
  31. ^SOGo
  32. ^sabre/dav
  33. ^Scalix
  34. ^Synovel
  35. ^Xandikos
  36. ^Zimbra
  37. ^sync!Egw

External links[edit]


  • RFC 2616 – HTTP
  • RFC 3744 – WebDAV Access Control Protocol
  • RFC 4791 – CalDAV
  • RFC 4918 – WebDAV
  • RFC 5545 – iCalendar
  • RFC 5546 – iTIP

Outlook Caldav Synchronizer Os X

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