Habe bei mir nachstehende Rules in meiner vhost.conf angelegt.
Funktioniert alles wunderbar. Über SSL wie auch unverschlüsselt.
Apache/2.2.21 (Linux/SUSE)
RewriteEngine on
RewriteRule /Microsoft-Server-ActiveSync(.*) /srv/www/htdocs/index.php$1 [E=REDIRECT_ACTIVESYNC:true,E=REMOTE_USER:%{HTTP:Authorization}]
# WebDAV / CardDAV / CalDAV API
RewriteCond %{REQUEST_METHOD} !^(GET|POST)$
RewriteRule ^/$ /srv/www/htdocs/index.php?frontend=webdav [E=REMOTE_USER:%{HTTP:Authorization}]
RewriteRule ^/addressbooks /srv/www/htdocs/index.php?frontend=webdav [E=REMOTE_USER:%{HTTP:Authorization}]
RewriteRule ^/calendars /srv/www/htdocs/index.php?frontend=webdav [E=REMOTE_USER:%{HTTP:Authorization}]
RewriteRule ^/principals /srv/www/htdocs/index.php?frontend=webdav [E=REMOTE_USER:%{HTTP:Authorization}]
RewriteRule ^/webdav /srv/www/htdocs/index.php?frontend=webdav [E=REMOTE_USER:%{HTTP:Authorization}]



