「無法識別的SSL消息，明文連接」時發送郵件使用Grails異步郵件API

Question

我試圖用Grails Async Mail API

當我用下面的配置嘗試使用Gmail來發送郵件：

在 配置

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"] 
    } 
} 

.groovy，我能夠發送郵件。當我在上面的配置改變如下特定郵件服務器：

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"] 
    } 
} 

我得到以下錯誤：

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

請給我一些暗示，我在做什麼錯在上述情況下。

Answer 1

你可以嘗試做以下簡單，它應該爲你工作

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