To enable HTTPS connections to your website or application in AWS, you need an SSL/TLS server certificate.For certificates in a Region supported by AWS Certificate Manager (ACM), we recommend that you use ACM to provision, manage, and deploy your server certificates.

If Subscription Manager is unable to verify the server identity, ensure that: The date and time on the system is accurate. An inconsistency of one second or more can cause issues with verifying the system’s certificate. Oct 08, 2019 · Simply put, your iPhone will request the server’s SSL certificate whenever it’s trying to connect to it. The server will then respond by sending the certificate to your iPhone for validation. Your iPhone will essentially check if the certificate is reliable or not. It will also go through your account’s details and see if everything matches. For the client to verify the server, it does the following (according to my understanding): 1) It obtains the certificate from the server. The certificate will contain public key and digital signature. 2?) You can verify the SSL certificate on your web server to make sure it is correctly installed, valid, trusted and doesn't give any errors to any of your users. To use the SSL Checker, simply enter your server's public hostname (internal hostnames aren't supported) in the box below and click the Check SSL button.

Also bear in mind that when making a socket connection and using --ssl-verify-server-cert the CN of the server certificate must be the same as the host you specify for the -h command-line option. – Keith Burdis Jun 18 '12 at 20:59

If a mail server uses an SSL certificate that’s signed by an unknown authority (such as a self-signed certificate), the Mail app on your Mac displays a message indicating that it can’t verify the identity of the mail server. Although you can connect to the mail server, Mail will continue to warn you about it each time you open Mail. Thank you for the information, Martha. We would like to know what is happening when you click "LOGIN". It is possible that there is an issue with files of the Outlook app. Kindly check if you will be able connect your email account in Outlook after restarting your phone. Aug 12, 2019 · Typically, your iOS device connects to a mail server securely via fetching the server’s “SSL certificate” and confirming its reliability. In cases of expired certificates, on-matching domain names, or untrusted company, the certificate is marked as unreliable.

Thank you for the information, Martha. We would like to know what is happening when you click "LOGIN". It is possible that there is an issue with files of the Outlook app. Kindly check if you will be able connect your email account in Outlook after restarting your phone.

Also bear in mind that when making a socket connection and using --ssl-verify-server-cert the CN of the server certificate must be the same as the host you specify for the -h command-line option. – Keith Burdis Jun 18 '12 at 20:59 Check TLS/SSL Of Website with Specifying Certificate Authority If the web site is certificates are created in house or the web browsers or Global Certificate Authorities do not signed the certificate of remote site we can provide the signing certificate or Certificate authority. We will use -CAfile by providing the Certificate Authority File. If a mail server uses an SSL certificate that’s signed by an unknown authority (such as a self-signed certificate), the Mail app on your Mac displays a message indicating that it can’t verify the identity of the mail server. Although you can connect to the mail server, Mail will continue to warn you about it each time you open Mail. Thank you for the information, Martha. We would like to know what is happening when you click "LOGIN". It is possible that there is an issue with files of the Outlook app. Kindly check if you will be able connect your email account in Outlook after restarting your phone.