grails - 使用grails异步邮件api发送邮件期间“Unrecognized SSL message, plaintext connection”

Question

我正在尝试使用Grails Async Mail API发送邮件

当我尝试使用以下配置访问Gmail时:

grails {
   mail {
      host = "smtp.gmail.com"
      port = 465
      username = "xxxx@gmail.com"
      password = "xxxx"
      props = ["mail.smtp.auth":"true",                        
               "mail.smtp.socketFactory.port":"465",
               "mail.smtp.socketFactory.class":"javax.net.ssl.SSLSocketFactory",
               "mail.smtp.socketFactory.fallback":"false"]
   }
}

在 config.groovy 中，我能够发送邮件。当我如下更改特定邮件服务器的上述配置时:

grails {
  mail {
    host = "xxx"
    port = 25
    username = "xxx"
    props = ["mail.smtp.auth":"false",
             "mail.smtp.socketFactory.port":"25",                           
             "mail.smtp.socketFactory.class":"javax.net.ssl.SSLSocketFactory",
             "mail.smtp.socketFactory.fallback":"true",
             "mail.smtp.starttls.enable": "false",
             "mail.smtp.starttls.required": "false"]
  }
}

我得到以下错误:

javax.mail.MessagingException: Could not connect to SMTP host: xxx, port: 25;
  nested exception is:
    javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?

请提供一些提示，以上情况我做错了什么。

Answer 1

您可以尝试做简单的跟踪，它应该对您有用

grails {
  mail {
    host = "xxx"
    port = 25
    username = "xxx"
    props = ["mail.smtp.auth":"false",
             "mail.smtp.socketFactory.port":"25",                           
             "mail.smtp.starttls.enable": "true"]
  }
}