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Helpful answers
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May 29, 2015 1:52 AM in response to kenjakwby BobSpadger,I have just discovered this issue today as well.
Using Kerio connect, I disabled TLS v1.0 and all my apple mail clients (all the way to Yosemite) dropped off. They were configured to use IMAPS on port 993 with SSL on etc.
I could not find a way to get them to connect so had to re-enable TLS 1.0.
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May 29, 2015 9:36 AM in response to kenjakwby mwf01,I discovered this on April 30th when I disabled TLSv1.0 for IMAP and SMTP connections on our mail server. It broke all mail connectivity from our iPhones (8.3 12F70). I confirmed via our mail server logs that iOS uses TLSv1.0 for connections to both IMAP and SMTP. I also confirmed that Safari on the iPhone uses TLSv1.2 by visiting https://www.ssllabs.com/ssltest/viewMyClient.html It also supports SSL 3 and TLS 1.0, both of which are considered insecure.
I disabled TLSv1.0 for all services except IMAP and SMTP. Since you only have to pass the PCI scan once every three months I have a little more time before I have to disable TLSv1.0 for IMAP and SMTP or become non-compliant.
Apple needs to fix this now or they are going to have a major issue on their hands.
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May 29, 2015 10:30 AM in response to mwf01by Eric Root,Send Apple feedback. They won't answer, but at least will know there is a problem. If enough people send feedback, it may get the problem solved sooner.
Or you can use your Apple ID to register with this site and go the Apple BugReporter. Supposedly you will get an answer if you submit feedback.
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Jun 1, 2015 2:56 AM in response to Eric Rootby BobSpadger,I've posted
Can we find anyone who has apple mail running with TLS 1.1 or greater - it seems quite mad that apple would just use 1.0
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May 12, 2016 7:03 AM in response to BobSpadgerby CGK_sys,how did you guys disable TLS 1.0 ?
I'm using Mac OS X El Capitan with Server App 5.1