沒有ssl的Java郵件-PKIX路徑構建失敗：

我正在使用java郵件通過smtp發送電子郵件。下面給出的SMTP設置：沒有ssl的Java郵件-PKIX路徑構建失敗：

 Properties props = new Properties(); 
     Object put = props.put("mail.smtp.host", smtpHost); 
     props.put("mail.smtp.user", smtpUser); 
     props.put("mail.smtp.auth", true); 
     props.put("mail.debug", mailDebug); 
     props.put("mail.smtp.port", port);

該smtp憑證已通過telnetting我的smtpHost與上述細節驗證。但是，當我在java郵件中使用上述設置時，出現以下異常。

 250-AUTH PLAIN LOGIN 
     250-STARTTLS 
     250 HELP 
     DEBUG SMTP: Found extension "SIZE", arg "52428800" 
     DEBUG SMTP: Found extension "8BITMIME", arg "" 
     DEBUG SMTP: Found extension "PIPELINING", arg "" 
     DEBUG SMTP: Found extension "AUTH", arg "PLAIN LOGIN" 
     DEBUG SMTP: Found extension "STARTTLS", arg "" 
     DEBUG SMTP: Found extension "HELP", arg "" 
     DEBUG SMTP: Attempt to authenticate 
     DEBUG SMTP: check mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM 
     DEBUG SMTP: AUTH LOGIN command trace suppressed 
     DEBUG SMTP: AUTH LOGIN failed 
     Nov 29, 2012 11:54:40 AM com.Test main 
     SEVERE: null 
     javax.mail.AuthenticationFailedException: 535 Incorrect authentication data

當我添加一行：

 props.put("mail.smtp.starttls.enable", false);

它再次生成相同的身份驗證失敗的異常。

如果我設置mail.smtp.starttls.enable到真正，認證成功，但我得到以下異常：

 220 TLS go ahead 
    Nov 28, 2012 5:32:36 PM com.Test main 
    SEVERE: null 
    javax.mail.MessagingException: Could not convert socket to TLS; 
    nested exception is: 
    javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target 
    at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:1918) 
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:652) 
    at javax.mail.Service.connect(Service.java:317)

通過關於第二個例外各種論壇主題去後，我運行InstallCert程序來獲取服務器的自簽名證書。該InstallCert拋出以下異常：

  Opening connection to mydomain.com.au:443... 
      Starting SSL handshake... 
      javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection? 
        at sun.security.ssl.InputRecord.handleUnknownRecord(InputRecord.java:542) 
        at sun.security.ssl.InputRecord.read(InputRecord.java:374) 
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:850) 
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1190) 
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1217) 
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1201) 
        at InstallCert.main(InstallCert.java:100) 
      Could not obtain server certificate chain

所以，看起來像我的服務器沒有SSL，但STARTTLS啓用。使用STARTTLS將郵件發送到沒有ssl的服務器的正確參數是什麼？

來源

2012-11-28 janenz00

This JavaMail FAQ entry應該有所幫助。

嘗試使用MailSSLSocketFactory這樣的：

MailSSLSocketFactory sf = new MailSSLSocketFactory(); 
    sf.setTrustAllHosts(true); 
    props.put("mail.smtp.ssl.socketFactory", sf);

來源

2012-11-28 08:06:14

我也嘗試之一。按照常見問題中所述使用InstallCert，並且我收到了異常「javax.net.ssl.SSLException：無法識別的SSL消息，明文連接？」。看起來我的服務器根本沒有使用SSL。 – janenz00

也用InstallCert異常編輯我的問題。 – janenz00

InstallCert的問題在於，只有在您可以開始SSL連接時纔有效。如果您的服務器僅支持轉換爲SSL（TLS）連接的純文本連接，則InstalCert將不起作用。您可能需要查看[MailSSLSocketFactory]（http://javamail.kenai.com/nonav/javadocs/com/sun/mail/util/MailSSLSocketFactory.html）類，這會使您更輕鬆地處理自簽名否則將不能驗證的證書。 –

爲我工作:)

Properties props = new Properties(); 
     props.put("mail.transport.protocol", "smtp"); 
     props.put("mail.smtp.host", "smtp.companydomain.biz"); // 
     props.put("mail.smtp.auth", "true"); 
     props.put("mail.debug", "true"); 
     props.put("mail.smtp.starttls.enable", "true");`enter code here` 
     props.put("mail.smtp.port", "25"); 
     props.put("mail.smtp.socketFactory.port", "25"); 
     props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); 
     props.put("mail.smtp.socketFactory.fallback", "true"); 

     MailSSLSocketFactory sf = null; 
     try { 
      sf = new MailSSLSocketFactory(); 
     } catch (GeneralSecurityException e1) { 
      // TODO Auto-generated catch block 
      e1.printStackTrace(); 
     } 
     sf.setTrustAllHosts(true); 
     props.put("mail.smtp.ssl.socketFactory", sf); 

     Session mailSession = Session.getInstance(props, new javax.mail.Authenticator() { 

      protected PasswordAuthentication getPasswordAuthentication() { 
       return new PasswordAuthentication("[email protected]", "password"); 
      } 
     }); 

     mailSession.setDebug(true); // Enable the debug mode 

     Message msg = new MimeMessage(mailSession); 

     //--[ Set the FROM, TO, DATE and SUBJECT fields 
     try { 
      msg.setFrom(new InternetAddress("[email protected]")); 
     } catch (AddressException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } catch (MessagingException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 
     try { 
      msg.setRecipients(Message.RecipientType.TO,InternetAddress.parse("[email protected]")); 
     } catch (AddressException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } catch (MessagingException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 
     //msg.setSentDate(new Date()); 
     try { 
      msg.setSubject("Hello World!"); 
     } catch (MessagingException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 

     //--[ Create the body of the mail 
     try { 
      msg.setText("Hello from my first e-mail sent with JavaMail"); 
     } catch (MessagingException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 

     //--[ Ask the Transport class to send our mail message 
     try { 
      Transport.send(msg); 
     } catch (MessagingException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 
    }

來源

2013-05-16 07:10:20

我有這個問題與Java 8更新這個屬性問題後解決

props.put（「mail.smtp.ssl.trust」，「smtp.gmail.com」）

如果application.property用於春季啓動

spring.mail.properties.mail.smtp.ssl.trust = smtp.gmail.com

來源

2017-11-14 07:48:39 Asanka

沒有ssl的Java郵件-PKIX路徑構建失敗：

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