email - Gmail SMTP 的 Grails 邮件插件问题

Question

我将 grails 邮件插件 (2.0.0.RC2) 与 Grails 3.0.7 一起使用。这是我的配置:

mail:
        host: smtp.gmail.com
        port: 465
        username: myuser@gmail.com
        password: myPassword
        props:
          - mail.debug: true
          - mail.smtp.auth: true
          - mail.smtp.socketFactory.port: 465
          - mail.smtp.socketFactory.class: javax.net.ssl.SSLSocketFactory
          - mail.smtp.socketFactory.fallback: false

当我尝试发送测试邮件时，出现以下错误:

Caused by: org.springframework.mail.MailSendException: Mail server connection failed; nested exception is javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1. Failed messages: javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1
    at grails.plugins.mail.MailMessageBuilder.sendMessage(MailMessageBuilder.groovy:131) ~[mail-2.0.0.RC2.jar:na]
    at grails.plugins.mail.MailService.sendMail(MailService.groovy:55) ~[mail-2.0.0.RC2.jar:na]
    at grails.plugins.mail.MailService.sendMail(MailService.groovy:59) ~[mail-2.0.0.RC2.jar:na]
    at com.eduspace.ClassroomController.$tt__index(ClassroomController.groovy:13) ~[main/:na]
    at grails.transaction.GrailsTransactionTemplate$2.doInTransaction(GrailsTransactionTemplate.groovy:93) ~[grails-core-3.0.7.jar:3.0.7]
    at grails.transaction.GrailsTransactionTemplate.execute(GrailsTransactionTemplate.groovy:90) ~[grails-core-3.0.7.jar:3.0.7]
    ... 9 common frames omitted
Caused by: javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1
    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1972) ~[javax.mail-1.5.1.jar:1.5.1]
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:656) ~[javax.mail-1.5.1.jar:1.5.1]
    at javax.mail.Service.connect(Service.java:345) ~[javax.mail-api-1.5.1.jar:1.5.1]
    ... 15 common frames omitted

我在日志中看不到其他调试信息。我将根记录器设置为 INFO，所以应该输出所有内容。我已经验证我可以远程登录到 smtp.gmail.com 端口 465，所以这不是问题。我读到其他人遇到了 SSL 问题，但通常会有一些调试信息表明 SSL 问题，但我没有得到类似的东西。

Answer 1

我正在使用一个稍微不同的配置，它工作正常:

grails:
    mail:
        host: "smtp.gmail.com"
        port: 465
        username: "<username>@gmail.com"
        password: "<password>"
        props:
            mail.smtp.auth: "true"
            mail.smtp.socketFactory.port: "465"
            mail.smtp.socketFactory.class: "javax.net.ssl.SSLSocketFactory"
            mail.smtp.socketFactory.fallback: "false"

邮件配置位于 中 chalice 占位符，我没有像你的例子那样使用破折号。也许这对你有帮助。