On 2/16/12 4:59 AM, Adrien de Croy wrote:


On 16/02/2012 10:07 p.m., Michel Sébastien wrote:
On 16/02/2012 1:26 p.m., Brandon Long wrote:
This is the second time I've heard about concern that proxies would
break access to my mail data over http.
layering other protocols over HTTP is currently an arms-race between
client-software developers who want to do this, and proxy developers
who want to provide the tools their customers (sys admins) ask for to
allow them to prevent it.

the harder it gets to block something intelligently, the more likely
admins will resort to over-blocking. We see it every day.

Developing a new protocol for mail designed ONLY to layer over HTTP
is therefore extremely foolhardy. Sure by all means have options.
I'm not really convinced, does it means that CalDAV and CardDAV are on
the wrong way ? I think not, even if they are not supported by all
mobile platforms

well, deploying CalDAV to a corporate environment has all sorts of
issues. You want to run your CalDAV server on a computer running a web
server? Port conflict. Or you need to wedge it into your web server
somehow.

The Cyrus Project aims to include CalDAV support as part of the Cyrus IMAP server, which would make CalDAV deployment much simpler for any sites that are already running Cyrus.

Dave
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