我遇到了一些关于SpringBoot2.4邮件服务器连接的奇怪问题
my application.yml如下所示：

spring:
  mail:
    host: ${MAIL_HOST:mail.lbg.ac.at}
    port: ${MAIL_PORT:55587}
    username: ${MAIL_USER:fallbackusernamehere}
    password: ${MAIL_PASSWORD:fallbackpasswordhere}
    protocol: smtp
    defaultEncoding: UTF-8 # Default message encoding
    properties:
      mail:
        smtp:
          auth: ${MAIL_AUTH:true}
          starttls: ${MAIL_STARTTLS_ENABLED:true}

当我在本地或本地docker容器中启动SpringBoot服务时，邮件发送就像一个符咒。但是，当我尝试从kubernetes服务中托管的容器发送邮件时，收到以下错误：

Authentication failed; nested exception is javax.mail.AuthenticationFailedException: 334 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\n;\n  nested exception is:\n\tjava.lang.ArrayIndexOutOfBoundsException: arraycopy: last destination index 518 out of bounds for byte[512]

这种行为非常奇怪，因为甚至java版本（带有SpringBoot2.4.2的Java11）也与服务器上的相同。有人知道这是什么原因吗？