javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate) sending mail

Good morning,

I'm trying to send a mail in a java application running on Ubuntu with jakarta.mail-api version 2.1.2 and openjdk version 11.0.20.1

but I obtain following exception:

javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)

Here's my code:

Properties props = new Properties();props.put("mail.smtp.host", "smtp.office365.com"); //SMTP Hostprops.put("mail.smtp.port", "587"); //TLS Portprops.put("mail.smtp.auth", "true"); //enable authenticationprops.put("mail.smtp.starttls.enable", "true"); //enable STARTTLSprops.put("mail.smtp.ssl.protocols", "TLSv1.2");props.put("mail.debug", "true");Authenticator auth = new Authenticator() {   protected PasswordAuthentication getPasswordAuthentication() {      return new PasswordAuthentication("abc@xxxx.com", "yyyy");   }};Session session = Session.getInstance(props, auth);try {   MimeMessage msg = new MimeMessage(session);   msg.addHeader("Content-type", "text/HTML; charset=UTF-8");   msg.addHeader("format", "flowed");   msg.addHeader("Content-Transfer-Encoding", "8bit");   msg.setFrom(new InternetAddress("abc@xxxx.com"));   msg.setReplyTo(InternetAddress.parse("abc@xxxx.com", false));   msg.setSubject("Mail Subject");   msg.setText("body", "UTF-8");   msg.setRecipients(Message.RecipientType.TO,   InternetAddress.parse("me@xxxx.com", false));   Transport.send(msg);     log.info("Email Sent Successfully!!");} catch (Exception e) {   log.error("Error",e);}

Same code works well on my Windows 11 machine with java version 11.0.19 installed. Any suggestion?

UPDATE:As suggested by dave_thompson_085 I've changed

props.put("mail.smtp.ssl.protocols", "TLSv1.2");

in

props.put("mail.smtp.ssl.protocols", "TLSv1.3");

but exception remains the same.

Checking java.security I've found:

jdk.tls.disabledAlgorithms=SSLv3, TLSv1, TLSv1.1, RC4, DES, MD5withRSA, \DH keySize < 1024, EC keySize < 224, 3DES_EDE_CBC, anon, NULL, \include jdk.disabled.namedCurves

after commenting these three lines Exception become:

javax.mail.AuthenticationFailedException: nullat javax.mail.Service.connect(Service.java:306) ~[mail-1.4.jar:1.4]

after removing only TLSv1, TLSv1.1, I catch always:

javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)