邮件依赖版本

  <properties>
    <mail.version>1.6.2</mail.version>
  </properties>

旧版

<dependency>
    <groupId>javax.mail</groupId>
   	<artifactId>mail</artifactId>
    <version>1.4</version>
</dependency>

新版

<dependency>
	<groupId>com.sun.mail</groupId>
	<artifactId>javax.mail</artifactId>
	<version>${mail.version}</version>
</dependency>