How do I connect to an SMTP server that requires a username and password?

Question

Hi,
I am currently working on a project for university which requires me to send and receive email. I was until this week able to send mail no problem, but now the SMTP server has been upgraded so that each time a mail is sent it requires the username and password.
Ideally the connection should be made using TLS/SSL, and not use the Authenticator method. I want to pass the username and password directly if possible.
I've been trying to use the following but have been getting handshake, and other exceptions:
SMTPSSLTransport smtpSSLtransport = new SMTPSSLTransport(session,
                    new URLName("smtp", smtpHost, port, null-File,
                    "USERNAME", "PASSWORD"));
        smtpSSLtransport.setStartTLS(true);
        smtpSSLtransport.connect(new Socket(smtpHost, port));
        smtpSSLtransport.sendMessage(smtpMessage,                                                     message.getAllRecipients());
        smtpSSLtransport.close();Can anyone correct this piece of code for me or point me in the right direction of what classes and methods I should be using?
Many thanks in advance,
Gordon

Answer 1

I always wonder what misleads people to do things this way.
Was there some example you saw that suggested that instantiating
an SMTPSSLTransport was the correct approach? I hope not.
See the smtpsend.java demo program for how to use SMTP
authentication. If you need to use SSL, see the SSLNOTES.txt
file for hints on using the "smtps" protocol. smtpsend.java also
illustrates use of SSL, but you'll need to fix a bug in it to use the
correct property names ("mail.smtps.auth", etc.).