still have this annoying errors .......
forums.bitfire.at/topic/897/error-with-smartermail-14-4/2
forums.bitfire.at/topic/962/0-9-1-3-get-error
Can you confirm that Smartermails does send this Etag? Sometime I have it now also for calendar syncs.
tools.ietf.org/html/rfc6352#section-6.3.2.3
does nobody else have this error ......if activesync would be not so expensive for my little homeserver I would switch to activesync ;-)