Springmail Error during use

1, unable to locate provider for protocol:smtp–> lack of dependency caused by

<dependency>        <groupId>Javax.mail</groupId>        <artifactid>Mail</artifactid>        <version>1.4</version>    </Dependency>    <dependency>        <groupId>Javax.activation</groupId>        <artifactid>Activation</artifactid>        <version>1.0.2</version>    </Dependency>

2, 501 mail from the address must be same as authorization user–> this is because the mail sender is not set, send the message must have the sender:

mailMsg.setFrom("1573876303@qq.com");

3, Javax.mail.authenticationfailedexception–> Set no problem, is definitely an account password error problem

Springmail Error during use