Cannot Verify Server Identity (Mail App)

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maksim230 Author

Level 1

5 points

Cannot Verify Server Identity (Mail App)

Bought iphone 7 plus, updated to latest IOS 15.1.

When adding an Exchange account in the "mail" application, an error appears:

Cannot Verify Server Identity

The identity of "my.mail.com" cannot be verified by Mail.

"my.mail.com" is self-signed certificate. When adding it to trusted certificates, the error does not disappear. I also tried to delete the account from the "mail" application and reboot the iphone itself. Is there a solution to this problem? Previously, it was possible to simply accept the certificate upon request and use it.

Posted on Nov 9, 2021 12:51 PM

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Answer 1

3ll3r

Level 1

8 points

Nov 12, 2021 9:54 AM in response to KiltedTim

KiltedTim, your answer does not help us to get the problem solved.

I am having the same problem as maksim230 since update to iOS 15.1. Other Devices with iOS 15 still working proper with self-signed certificates. But with iOS 15.1 I can reproduce the error message and trust issues while having self-signed certificate imported in trust store of the iPhone and iPad.

In iOS 15.1 release notes I cannot find any changes for certificate trust. From my end I think this is an issue at iOS 15.1.

The self signed certificate meets the following requiements:

https://support.apple.com/en-us/HT210176

Has anyone an idea to solve this problem?

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Answer 2

KiltedTim

Level 10

203,704 points

Nov 9, 2021 12:51 PM in response to maksim230

Contact your Exchange administrator.

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Answer 3

maksim230 Author

Level 1

5 points

Nov 9, 2021 12:55 PM in response to KiltedTim

Administrator say to use a third-party application that can work with self-signed certificates. I want to use the "mail" application. Is there a solution to this problem?

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Answer 4

KiltedTim

Level 10

203,704 points

Nov 9, 2021 4:51 PM in response to maksim230

Sure. Tell your IT department to pull their heads out of the sand and get an actual Certificate for the server.

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Cannot Verify Server Identity (Mail App)

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