On 28 March 2010 21:38, Dan Nelson <dnel...@allantgroup.com> wrote: > In the last episode (Mar 28), Ron said: > > Jeffrey Goldberg wrote: > > > On Mar 28, 2010, at 1:36 AM, per...@pluto.rain.com wrote: > > >> Er, no. POP3 and IMAP are "pull" services, wherein the client polls > > >> the server periodically for any newly-arrived messages. > > > > > > IMAP, but not POP3, can be used to push, but the iPhone mail client > > > doesn't support that as far as I know. It does support being pushed to > > > over Mobile Me, but not on regular IMAP. > > > > So how is Mobil Me and Exchange Servers (MS, Zimbra, etc) doing it? > > That's what I'd like to replicate on my FreeBsd server. This seems to be > > a well guarded secret I'd like to crack. > > > > On the iPhone, at least, the phone is not polling the servers, some kind > > of message (SMS?) is being sent to the phone that makes it put a little > > red badge on the corner of the mail app icon telling it how many messages > > are waiting. The messages don't seem to be download during the push, > it's > > just a count (I could be wrong about this). > > For ActiveSync at least, the phone has to keep a TCP connection to the > server open 24/7, and the server sends a notification when a new mail > arrives. MobileMe probably works the same way. The IMAP protocol supports > a similar "notify on new mail" option, but for some reason Apple doesn't > use > it in their client. > > -- > Dan Nelson > dnel...@allantgroup.com > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscr...@freebsd.org" >
To totally confuse thin most modern mtas can easily be configured to pipe mails to an external program or pipe. This can then to whatever, include pushing stuff to a mobile phone I would imagine. _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
