最近有公司pop3协议接收pp邮箱出现异常,连不上服务器,错误内容: e: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target 经过检查确认,完整的异常信息应该如下: ja…