Cannot Verify Server Identity
When connecting to your email, the iPhone forces a secure connection for its initial connection attempts. If your domain is using a self-signed certificate, you may receive a warning similar to this. This means that the SSL encryption for the domain is not registered with a company that issues SSL certificates.
It's important to note that while you can avoid seeing this warning by forcing the iPhone to connect with unsecured connections, you are only using a less secure connection in a way that does not resolve the issue.
The recommended resolution for this error is to accept the certificate as a trusted certificate:
- When you receive the popup with this error, click Details.
- On the next screen, click Accept.
You should now be able to access your email.