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Kevlar Author

Level 3

733 points

Trusting Self-Signed Certificates in iOS 10

It appears that Apple has removed (or hidden) the ability to trust SSL certificates that are self-signed.

We host our own mail server with a self-signed certificate and previously we could manually trust the certificate on iOS devices. Now, users get prompted that the certificate is not trusted, we can only see details or cancel, there's no longer an option to trust it. As a result, they have difficulty sending or receiving mail from the iOS 10 devices.

Anyone know a workaround for this?

Posted on Nov 7, 2016 8:48 AM

Top-ranking reply

altjxx

Level 1

14 points

Posted on Mar 31, 2017 11:16 AM

What fixed this issue from my iPhone for me was going to Settings -> General -> About -> Certificate Trust Settings, and there is a section called "ENABLE FULL TRUST FOR ROOT CERTIFICATES". Under it lists the certificate that I installed on my iPhone. Once I enabled that, I'm good to go.

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52 replies

blup42

Level 1

4 points

Jun 3, 2017 7:35 AM in response to Paul Vail

How did you delete just the SMTP server? I can only configure IMAP and SMTP together...

Jun 8, 2017 11:13 AM in response to Lawrence Finch

Hi Lawrence are you saying it should be fixed now with the 10.3.2 update?

Jun 8, 2017 12:07 PM in response to iammrsstratton

I had seen a post from another user saying it was fixed. I have no direct knowledge.

Jun 8, 2017 4:04 PM in response to Lawrence Finch

awesome thank you!

Aug 23, 2017 6:01 PM in response to emilstahl

I do not think this is an option anymore in iOS 10.3.3

Oct 4, 2017 8:13 PM in response to Kevlar

It doesn't give me the option to "trust"

Kevlar Author

Level 3

733 points

Oct 5, 2017 7:05 AM in response to Valeneayar

We haven't had issues as long as you rebuild the mail account AND delete the old smtp server in the process. Then you get the option to Trust, and it has been working fine since.

Trusting Self-Signed Certificates in iOS 10