certificate not trusted since ios 11.4

I can also confirm we are seeing this issue across all of our customers utilizing iOS 11.4 and Exchange 2013 environments with self signed certs. The article mentioned by Becky does not apply because there is no cert to "trust" in that location.

It seems the fix is to purchase an SSL cert or install the Outlook for iOS app and setup the email there.

Unless someone else has something else to offer?

Absolutely agree, Rob. The only way to setup exchange email boxes utilizing a self signed cert is to actually push the cert to the phone, enable it, and allow it. It's really silly the steps you have to take in order to make it work.

Depending on how the network is setup - you can browse to the https://localhost/certsrv on the phone, download the cert from there.

Another option is to simply email the cert to another email address setup on the iOS device and install it from there.

Keep in mind, not only do you have to install the cert - you have to allow it. This is not so by default. To do this go to General > About > Certificate Trust Settings > enable cert.

Best course is just to get a paid SSL cert in the end.

Dan

Hello viktor_from_cologne,

Thank you for using Apple Support Communities. It sounds like you’re having trouble with trusting a certificate. I’m happy to help.

I suggest checking out the following article:

Trust manually installed certificate profiles in iOS - Apple Support

If the issue persists, you’ll want to reach out to your Exchange Server Admin.

Cheers.

Indeed Dan, unfortunately not all of my customers like paying for certs.

It's a bit easier on SBS 2011, for the benefit of Google, how to install Exchange self signed cert on IOS 11

on the phone go to https://remote.yourcompanydomain.com/remote

Accept the warning to continue if prompted in Safari.

Log in then browse to Public > Downloads > Certificate Distribution Package and click on the .cer file to install it to the device following the steps above.

This is not an Exchange issue, the problem is the way IOS now handles (or rather doesn't handle) self signed certs.

Regards,

Rob (an Exchange admin)

mdh67,

To confirm - are you navigating on your phone to General > About > (scroll to the bottom) tap Certificate Trust Settings

Do you see no certificate there?

Also, is this an exchange email you're trying to setup? Does the organization have a self signed cert?

Thanks,

Dan

I am having this same problem. I am able to install my cert, but I can't get iOS to trust it. My cert shows up under Settings->General->Profile but not under Settings->General->About->Certificate Trust Settings. All I see there is "Trust Store Version" and "Learn more about trusted certificates."

Grrr....

I have this issue with an iphone8 using 11.4. There is no option to manually trust the certificate in the settings.

Here is my post that worked for the self signed Exchange certificates issues...

Exchange Self Signed Certificates (Trust Issues with iOS 11)

Can't turn Enable full trust for root certificates on.

Same problem. Can't trust certificate in the Iphone...

We issue our own SSL's via LetsEncrypt, and it still occurs for any user connecting via SSL since the latest update.

Sort it out Apple, it's embarrassing.

Not really the answer but this is important when purchasing a valid SSL.

List of available trusted root certificates in iOS 11 - Apple Support

Dear Ron,

I am having the same issue and i am really stuck, can you got solution ?

Thanks

Firose

same problem with 12.0.1, anyone got a fix? My phone is telling me about the problem every ten seconds