通过mailR软件包发送电子邮件

Question

我正在尝试使用mailR软件包和gmail从RStudio发送电子邮件。安全性较低的应用程序选项也已启用，仍然出现错误，以下是我的代码。

R代码：-

library(mailR)
sender <- "abc@gmail.com" 
To <- c("abc@gmail.com")
send.mail(from = sender,
          to = To,
          subject=paste("test email from Rstudio"), 
          body = 'Test email',   
          smtp = list(host.name = "smtp.gmail.com", port = 465,user.name="abc@gmail.com",passwd="*******", ssl=TRUE),
          authenticate = TRUE, 
          send = TRUE,html = TRUE , inline = TRUE )

以下是错误：-

"    org.apache.commons.mail.EmailException: Sending the email to the following server failed : smtp.gmail.com:465
        at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1410)
        at org.apache.commons.mail.Email.send(Email.java:1437)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(MNULL
    ethod.java:497)
        at RJavaTools.invokeMethod(RJavaTools.java:386)
    Caused by: com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.gmail.com, 465; timeout 60000;
      nested exception is:
        java.net.ConnectException: Connection refused: connect
        at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2053)
        at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:697)
        at javax.mail.Service.connect(Service.java:386)
        at javax.mail.Service.connect(Service.java:245)
        at javax.mail.Service.connect(Service.java:194)
        at javax.mail.Transport.send0(Transport.java:253)
        at javax.mail.Transport.send(Transport.java:124)
        at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1400)
        ... 6 more
    Caused by: java.net.ConnectException: Connection refused: connect
        at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
        at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:668)
        at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:310)
        at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:215)
        at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2019)
        ... 13 more
    Error: EmailException (Java): Sending the email to the following server failed : smtp.gmail.com:465"

请帮助解决。