I've had contact with you guys before on how difficult it seems to be to two-way sync mail, calendar and contacts on an android device. In the end we needed to settle for a half-working solution...

Mail - seems to work (but two-way sync appears to be very slow)
Calendar - can only see some calendars (my main cal is missing and important cal's are impossible to see)
Contacts - seemed to work via ActiveSync, but unfortunately cannot filter for contacts with/without phone number

I got used to the below optimal workflow, but now it seems it only syncs up to a certain point (the letter J) :-(.

So I tried to setup CardDAV. This seemed to work but some important contacts still do not show up on my mobile (luckily they are still online in Zoho Mail).

1. Do you have any idea what is going on?

2.Are you working on a solution that properly works?

Thanks in advance.

Jasper