Hi, I am using an openssl certificate and have successfully made my web server ssl by adjusting server.xml. However, when I test ending email application, it always throws an error like sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target and javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed.
Should I buy a ssl certified by a trusted root authority to use jira email?