Is there a road map on full EWS support, or is that not planned at all?
Many third party systems can integrate with Exchange wrt. calendars, but they don't seem to work with Kerio.
One of the things, that's not working correctly, is taht you don't seem to support RequestServerVersion.
When you try to connect to Kerio thinking it's an Exchange 2013 server, the correct answer from an Exchange-server when reporting InvalidServerVersion should be:
<?xml version="1.0" encoding="utf-8"?>
<faultstring xml:lang="da-DK">The specified server version is invalid.</faultstring>
<e:Message xmlns:e="http://schemas.microsoft.com/exchange/services/2006/errors">The specified server version is invalid.</e:Message>
<?xml version="1.0" encoding="UTF-8"?>
<Envelope xmlns="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<faultstring>Validation constraint violation: invalid value in element 't:RequestServerVersion'</faultstring>
- Pavel Špalek (Kerio)
The support of EWS protocol is constantly improving, we are adding new supported clients, but the protocol is not fully covered yet.
The RequestServerVersion response is correct, this field has predefined set of values, any other (newer) version is simply unknown/invalid value. Most clients understands this behavior and falls back to the older version, it shouldn't cause any trouble.
developer - Kerio Connect
Kerio discussion forums are intended for open communication between forum
members and may contain information and material posted by members which may
be useful in learning about Kerio products. The discussion forums are not
intended to provide technical support for any specific product. Any
information implied or expressed in the discussion forums is that of the
posting member. Kerio is in no way responsible for the information posted in
the forums, or its accuracy. Kerio employees may participate in the
discussions, but their postings do not represent an offical position of the
company on any issues raised or discussed. Kerio reserves the right to
monitor and maintain the forums to promote free and accurate exchange of