On 08/19/2016 04:30 PM, Sven Strickroth wrote:
Am 19.08.2016 um 14:40 schrieb Adrian Minta:
The cert doesn't work with old clients.
What do you understand under old?
Ok, Windows XP clients might be problematic regarding SNI and used
ciphers, but starting with Vista all clients which use the Windows
CryptoAPI and Trust Store are working.
Take Mozilla, there is it supported since Firefox 2.0 (I don't know
right now which is the corresponding Thunderbird version, but I expect
it to be supported since really early versions).
Java clients are problematic as you need the latest version.
Android works with >= 2.3.6 and iOS iOS >= 3.1.
See
https://community.letsencrypt.org/t/which-browsers-and-operating-systems-support-lets-encrypt/4394?u=mrtux
for a fuller list and feel free to report more working or not working
clients, I'll add them there.
MTAs usually don't validate the certificates, so there should be no problem.
I did encounter some problems last year with Outlook on older Windows XP
machines.
The problem seems to be discussed here:
https://community.letsencrypt.org/t/help-needed-windows-xp-support/8756
https://community.letsencrypt.org/t/upcoming-intermediate-changes/13106
--
Best regards,
Adrian Minta
