【TLS 版本兼容】javax.mail.AuthenticationFailedException: 421 4.7.66 TLS 1.0 and 1.1 are not supported

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问题描述

邮件发送功能一直发送失败，报错日志：

Authentication failed; nested exception is javax.mail.AuthenticationFailedException: 421 4.7.66 TLS 1.0 and 1.1 are not supported. Please upgrade/update your client to support TLS 1.2. Visit https://aka.ms/smtp_auth_tls.

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解决方案

身份验证失败，TLS证书版本低，让升级到1.2版本，添加邮箱参数配置：“mail.smtp.ssl.protocols” ===》 “TLSv1.2”：

        Properties javaMailProperties = new Properties();
        javaMailProperties.setProperty("mail.smtp.auth", "true");
        javaMailProperties.setProperty("mail.smtp.timeout", "25000");
        javaMailProperties.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
        javaMailProperties.setProperty("mail.smtp.ssl.protocols", "TLSv1.2"); //设置使用TLS1.2版本