MailR does not connect to gmail server - R

Question

I want to send an automatic letter using mailR. I can not connect to the gmail server. I have allowed access to less secure applications in my gmail account, following the recommendations of other users. This did not solve the problem.

Here is my code (password and email addresses are just examples):

library(mailR)
sender <- "[e-mail]"
recipients <- c("[e-mail]")
send.mail(from = sender,
          to = recipients,
          subject = "Brighton Profiler",
          body = "Dear Manager, your YSI Profiler failed to complete it last scheduled profile. Please investigate ASAP.",
          smtp = list(host.name = "smtp.gmail.com", port = 465, 
                      user.name = "[e-mail]",            
                      passwd = "password", ssl = TRUE),
          authenticate = TRUE,
          send = TRUE)

This error message is:

 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(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at RJavaTools.invokeMetNULL
hod(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 timed out: 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 timed out: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
    at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
    at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
    at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
    at java.net.PlainSocketImpl.connect(Unknown Source)
    at java.net.SocksSocketImpl.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.connect(Unknown Source)
    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