MBOX-Line: From mrc+imap at panda.com  Mon Oct  4 13:52:14 2010
To: imap-protocol@u.washington.edu
From: Mark Crispin <mrc+imap@panda.com>
Date: Fri Jun  8 12:34:45 2018
Subject: [Imap-protocol] Fwd: iOS IMAP IDLE (Standard "Push Email")
	Deficiency, Explanation?
In-Reply-To: <11166.1286223088.054596@puncture>
References: <352410DE-19D8-4EE4-8741-AB82741D7A18@sabahattin-gucukoglu.com>
	<4CAA0F5C.7030009@lists.grepular.com>
	<alpine.OSX.2.00.1010041034520.392@hsinghsing.panda.com>
	<7D32DBF6-2ECC-4854-85A8-84261D828ED2@sabahattin-gucukoglu.com>
	<11166.1286223088.054596@puncture>
Message-ID: <alpine.OSX.2.00.1010041338040.392@hsinghsing.panda.com>

On Mon, 4 Oct 2010, Dave Cridland wrote:
> Mobile operators are catching up in this respect. I'm told than 5-10
> minutes is fine for keepalives, now.

Oh, I agree.  But the issue isn't what the mobile operators do with NAT.
It's that you must "look out" for users that run an IMAP client on desktop
and laptop computers behind a cheap Linksys NAT box.

There is no reason for any desktop client to use IDLE, and negligible
reason for a laptop client to do so.  Typically, when I tether a laptop to
a mobile phone, I feed the phone power over USB and keep the data
connection up (via a ping if necessary).  I don't use a laptop tethered
mobile phone at all like I use an application on a mobile phone.

-- Mark --

http://panda.com/mrc
Democracy is two wolves and a sheep deciding what to eat for lunch.
Liberty is a well-armed sheep contesting the vote.

