The following software has been reported to work well with vdirsyncer, however, none of it is regularly tested.
The iCalendar format also supports saving tasks in form of
with the same file extension as normal events:
.ics. All CalDAV servers
support synchronizing tasks, vdirsyncer does too.
CalDAV and CardDAV servers not listed here may work anyway.
Radicale is a very lightweight server, however, it intentionally doesn’t implement the CalDAV and CardDAV standards completely, which might lead to issues even with very well-written clients. Apart from its non-conformity with standards, there are multiple other problems with its code quality and the way it is maintained.
That said, vdirsyncer is continuously tested against the git version and the latest PyPI release of Radicale.
Vdirsyncer can’t create collections on Radicale.
Radicale doesn’t support time ranges in the calendar-query of CalDAV, so setting
caldavwill have no or unpredicted consequences.
You have to set
item_types = ["VTODO", "VEVENT"]in
caldavfor vdirsyncer to work with those versions.
Vdirsyncer is continuously tested against the latest version of ownCloud:
[storage cal] type = "caldav" url = "https://example.com/remote.php/dav/" username = ... password = ... [storage card] type = "carddav" url = "https://example.com/remote.php/dav/" username = ... password = ...
- Versions older than 7.0.0: ownCloud uses SabreDAV, which had problems detecting collisions and race-conditions. The problems were reported and are fixed in SabreDAV’s repo, and the corresponding fix is also in ownCloud since 7.0.0. See issue #16 for more information.
Vdirsyncer is continuously tested against the latest version of nextCloud:
[storage cal] type = "caldav" url = "https://nextcloud.example.com/" username = ... password = ... [storage card] type = "carddav" url = "https://nextcloud.example.com/"
- WebCAL-subscriptions can’t be discovered by vdirsyncer. See this relevant issue.
[storage cal] type = "caldav" url = "https://caldav.messagingengine.com/" username = ... password = ... [storage card] type = "carddav" url = "https://carddav.messagingengine.com/" username = ... password = ...
Vdirsyncer is regularly tested against iCloud.
[storage cal] type = "caldav" url = "https://caldav.icloud.com/" username = ... password = ... [storage card] type = "carddav" url = "https://contacts.icloud.com/" username = ... password = ...
- Vdirsyncer can’t do two-factor auth with iCloud (there doesn’t seem to be a way to do two-factor auth over the DAV APIs) You’ll need to use app-specific passwords instead.
- iCloud has a few special requirements when creating collections. In principle
vdirsyncer can do it, but it is recommended to create them from an Apple
client (or the iCloud web interface).
- iCloud requires a minimum length of collection names.
- Calendars created by vdirsyncer cannot be used as tasklists.
DavMail (Exchange, Outlook)¶
DavMail is a proxy program that allows you to use Card- and CalDAV clients with Outlook. That allows you to use vdirsyncer with Outlook.
In practice your success with DavMail may wildly vary. Depending on your Exchange server you might get confronted with weird errors of all sorts (including data-loss).
Make absolutely sure you use the latest DavMail:
[storage outlook] type = "caldav" url = "http://localhost:firstname.lastname@example.org/calendar/" username = "email@example.com" password = ...
Older versions of DavMail handle URLs case-insensitively. See issue #144.
DavMail is handling malformed data on the Exchange server very poorly. In such cases the Calendar Checking Tool for Outlook might help.
In some cases, you may see errors about duplicate events. It may look something like this:
error: my_calendar/calendar: Storage "my_calendar_remote/calendar" contains multiple items with the same UID or even content. Vdirsyncer will now abort the synchronization of this collection, because the fix for this is not clear; It could be the result of a badly behaving server. You can try running: error: error: vdirsyncer repair my_calendar_remote/calendar error: error: But make sure to have a backup of your data in some form. The offending hrefs are: [...]
In order to fix this, you can try the Remove-DuplicateAppointments.ps1 PowerShell script that Microsoft has come up with in order to remove duplicates.
Vdirsyncer is continuously tested against the latest version of Baikal.
- Baikal up to
0.2.7also uses an old version of SabreDAV, with the same issue as ownCloud, see issue #160. This issue is fixed in later versions.