Java Mail Certificates and Keys Expired

Hello Experts,

The Certificates and Keys of the JavaMail component shows "expired" status in the "Configuration Management --> Security --> Certificates and Keys" tab. Because of this, when ever, I use the JavaMail service in my DCs, I get the following exception.

javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed:

Sending the mail from a simple Java project from the same server works perfectly. So, it is clear that due to this expiry, the Java Mail service doesn't work properly. How to solve this problem?

Any pointers in this regard would be highly appreciated.

Best regards,

Bala