Yahoo

Yahoo's CardDAV servers are currently hardly reachable. So only CalDAV-Sync works reliably.

Setup

CalDAV-Sync

• Server: caldav.calendar.yahoo.com
• SSL: leave ticked, it won't work otherwise
• Username: your Yahoo-ID (i.e. your email address at yahoo)
• Password: your Yahoo-Password

known issues

CalDAV

None so far.

CardDAV

Yahoo seems to have some configuration problem of their reverse proxies. When you try to contact carddav.address.yahoo.com you'll probably (in about 4 of 5 requests) get an error message stating:

Sorry, Proxy Error.
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request PROPFIND /dav/.
Reason: Could not connect to remote machine: Connection refused