On 15/03/2012 13:01, Victoriano Giralt wrote:
DTNX/NGMX Postmaster<postmas...@dtnx.net> wrote:
I don't know about Android, but we have not seen any issues with the
iPhone/iPad. Works fine with TLS 'encrypt' in our setups, as suggested
above.
In my experience, both the manufacturer provided and added mail clients I have
tryed in Android have had no issues with TLS.
I forget the exact issue now, but note that I'm not saying that it
*can't* work. What I'm saying is that I have a bunch of "normal" non
technical users. "Johnny" runs through the wizard on his favourite
device and then costs me money in tech support time if it doesn't work
first time. The issue was something like this device either defaulting
to non TLS (and not coping with the server requiring it), or he couldn't
find the button to enable it?
I *encourage* TLS on all new installations, and in fact all the Apple
stuff and new Microsoft /Mozilla clients seem to default to TLS
(great). But at the same time I don't see the issue if someone
*chooses* (or the defaults exclude) to avoid TLS and talk plaintext
Oh, and after the latest firmware update for my Nokia N9 (lovely
phone...) I don't seem to be able to do TLS anymore... Vodafone requires
that you use submission in the UK by blocking port 25, so it's helpful
to be able to use submission without TLS at least until I figure out why
it's not working anymore...
My point was only not *enforcing* it, rather than it shouldn't be
supported? May, not Required.
(A slightly off the wall reason for plaintext is that there are still
users on dialup. In particular my business supports users on a
(2.4Kbit) 300 byte/sec dialup satellite modem which costs $1.50/min.
Enabling TLS costs you $1-3 in additional connect time, plus lack of PPP
compression increases the cost by about a factor of 3. Although we are
clearly not talking about the average user now, I think it would focus
your mind if I asked if you would be happy to increase your monthly
internet bill by a few hundred dollars vs risking going plain text?)
Cheers
Ed W
