How do I set the “name” attribute in an email

问题:

I am sending mail with Java mail and an SMTP server. I want to be able to change the "name" that the recipient sees when they get an email message - not simply the prefix of the email address (the bit before @).

I suspect I need to change or add one of the 'props.put();' settings but I can't work out which one.

public class Email {

    private final String HOST = "mail.myserverr.com";
    private final String USER = "me+myserver.com";
    private final String FROM = "[e-mail]";
    private final String PASS = "mypass";
    private final String PORT = "25";
    private final String AUTH = "true";

    @Test
    public void sendMail(){
        String[] to = {"[e-mail]","me@myservercom"};
        sendMessage(to,"Let's go","What's up");

    }

    public void sendMessage(String[] to, String subject, String msg) {

        Properties props = System.getProperties();
            props.put("mail.smtp.starttls.enable", "true"); // added this line
            props.put("mail.smtp.host", HOST);
            props.put("mail.smtp.user", USER);
            props.put("mail.smtp.password", PASS);
            props.put("mail.smtp.port", PORT);
            props.put("mail.smtp.auth", AUTH);
            props.put("mail.smtp.socketFactory.port", PORT);
            props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
            props.put("mail.smtp.socketFactory.fallback", "false");


        Session session = Session.getDefaultInstance(props, null);
        MimeMessage message = new MimeMessage(session);
        try {
            message.setFrom(new InternetAddress(FROM));

        InternetAddress[] toAddress = new InternetAddress[to.length];

        // To get the array of addresses
        for( int i=0; i < to.length; i++ ) { // changed from a while loop
            toAddress[i] = new InternetAddress(to[i]);
        }

        for( int i=0; i < toAddress.length; i++) { // changed from a while loop
            message.addRecipient(Message.RecipientType.TO, toAddress[i]);
        }

        message.setSubject(subject);
        message.setText(msg);

        Transport transport = session.getTransport("smtps");
        transport.connect(HOST, USER, PASS);
            transport.sendMessage(message, message.getAllRecipients());
            transport.close();

        } catch (AddressException e) {
            e.printStackTrace();
        } catch (MessagingException e) {
            e.printStackTrace();
        }
    }
}

回答1:

Typical address syntax is of the form "[e-mail]" or "Personal Name <[e-mail]>".
You can use the same syntax for both FROM and TO field addresses.

Example:
Change following statement:
String[] to = {"[e-mail]","me@myservercom"};
to
String[] to = {"Recipient1 Name <[e-mail]>","My Name <me@myservercom>"};

You can also construct InternetAddress objects passing respective e-mailID and personal names as arguments.
Example:

String FROM = "[e-mail]";  
InternetAddress from = new InternetAddress( FROM, "Ravinder" );  

Recipient will see sender name for display as "Ravinder" instead of "[e-mail]"

Reference: javax.mail.internet.InternetAddress

回答2:

You need to change:

message.setFrom(new InternetAddress(FROM));

to

message.setFrom(new InternetAddress(FROM, "Company XYZ"));

Documentation: Class InternetAddress

InternetAddress

public InternetAddress(String address,
                   String personal)
                   throws UnsupportedEncodingException 

Construct an InternetAddress given the address and personal name. The address is assumed to be a syntactically valid RFC822 address.

Parameters:

address - the address in RFC822 format

personal - the personal name

Throws: UnsupportedEncodingException