Zoho Mail using msync on Android mobile

Zoho Mail using msync on Android mobile

After getting Msync to work with the Android email client, I am trying to get it to work with other email clients.

With K9 I get "Cannot connect to the server" error.

A similar error message with Emoze.

Is anyone using an email client which is better than the stock browser and which works with Zoho Mail and msync?