Java - SimpleMimeMessage does not set subject

I use Apache Commons Mail and recognised that the email subject (and other settings like character encoding) are not used at开发者_Python百科 all:

    props.put("mail.smtp.host", "localhost");
    Session s = Session.getInstance(props, null);
    s.setDebug(true);

    MimeMessage message = new MimeMessage(s);
    message.setHeader("Content-Type", "text/plain; charset=UTF-8");
    message.addHeader("Content-Transfer-Encoding", "quoted-printable");
    message.setFrom(new InternetAddress("me@home.com"));
    message.addRecipient(javax.mail.Message.RecipientType.TO, new InternetAddress("you@abroad.com"));
    String subj = MimeUtility.encodeText("");
    message.setSubject("my subject with specials äöü");

    message.setText("Some text with special äöü");
    Transport.send(message);

The debbugging output shows:

 DEBUG SMTP: useEhlo true, useAuth false
 DEBUG SMTP: trying to connect to host "localhost", port 25, isSSL false
 220 mydomain ESMTP Postfix
 DEBUG SMTP: connected to host "localhost", port: 25

 EHLO MyComputer
 250-PIPELINING
 250-SIZE 10485760
 250-VRFY
 250-ETRN
 250-ENHANCEDSTATUSCODES
 250-8BITMIME
 250 DSN
 DEBUG SMTP: Found extension "PIPELINING", arg ""
 DEBUG SMTP: Found extension "SIZE", arg "10485760"
 DEBUG SMTP: Found extension "VRFY", arg ""
 DEBUG SMTP: Found extension "ETRN", arg ""
 DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
 DEBUG SMTP: Found extension "8BITMIME", arg ""
 DEBUG SMTP: Found extension "DSN", arg ""
 DEBUG SMTP: use8bit false
 MAIL FROM:<me@home.com>
 250 2.1.0 Ok
 RCPT TO:<you@abroad.com>
 250 2.1.5 Ok
 DEBUG SMTP: Verified Addresses
 DEBUG SMTP:   you@abroad.com
 DATA
 354 End data with <CR><LF>.<CR><LF>

 Some text with specials =C3=A4=C3=B6=C3=BC
 .
 250 2.0.0 Ok: queued as 9F623345F99
 QUIT
 221 2.0.0 Bye

As far as I understand the SUBJECT should be set in the DATA section of the SMTP message.

How can I fix this?

If you take a look at this (sorry for a cached link, but Oracle seems to have this link (re)moved or something):

• http://webcache.googleusercontent.com/search?q=cache:CNbquKi8OesJ:forums.sun.com/thread.jspa%3FthreadID%3D5360448+setSubject+commons+email+doesn't+work&cd=3&hl=en&ct=clnk&gl=us&client=firefox-a

it seems that Apache Commons somehow influences Java Mail. The example you provided seems to be a standard Java Mail way of sending mails. So, can you try to either:

• Remove commons-email JAR from your classpath and try the above again,
  • Or use other examples e.g. from here: http://www.go4expert.com/forums/showthread.php?t=3649
• Use the (first) example from commons email site: http://commons.apache.org/email/userguide.html

I have the same problem.

I remove library

<artifactId>geronimo-javamail_1.4_spec</artifactId>
<groupId>org.apache.geronimo.specs</groupId>

from my project.

It's work for me!