Issue with tSendMail??

[Bluemoon]

These are the configuration i have given initially it used to work with this configuration. But now it is throwing error now.

[INFO ]: esbdemo.sendmail_0_1.SendMail - TalendJob: 'SendMail' - Start.
[statistics] connecting to socket on port 3727
[statistics] connected
[INFO ]: esbdemo.sendmail_0_1.SendMail - tSendMail_1 - Connection attempt to 'smtp.office365.com'.
[INFO ]: esbdemo.sendmail_0_1.SendMail - tSendMail_1 - Connection to 'smtp.office365.com' has succeeded.
Exception in component tSendMail_1
javax.mail.MessagingException: Can't send command to SMTP host;
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.sendCommand(SMTPTransport.java:1420)
at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:1408)
at com.sun.mail.smtp.SMTPTransport.ehlo(SMTPTransport.java:847)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:384)
at javax.mail.Service.connect(Service.java:297)
at javax.mail.Service.connect(Service.java:156)
at javax.mail.Service.connect(Service.java:105)
at javax.mail.Transport.send0(Transport.java:168)
at javax.mail.Transport.send(Transport.java:98)
at esbdemo.sendmail_0_1.SendMail.tSendMail_1Process(SendMail.java:712)
at esbdemo.sendmail_0_1.SendMail.tJava_1Process(SendMail.java:380)
at esbdemo.sendmail_0_1.SendMail.runJobInTOS(SendMail.java:997)
[FATAL]: esbdemo.sendmail_0_1.SendMail - tSendMail_1 Can't send command to SMTP host
at esbdemo.sendmail_0_1.SendMail.main(SendMail.java:831)
Caused by: 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 sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1514)
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1026)
at sun.security.ssl.Handshaker.process_record(Handshaker.java:961)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:747)
at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:123)
at com.sun.mail.util.TraceOutputStream.write(TraceOutputStream.java:101)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:1418)
... 12 more
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387)
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)
at sun.security.validator.Validator.validate(Validator.java:260)
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1496)
... 23 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382)
... 29 more
[statistics] disconnected

Please can anyone help me??

[TRF · Accepted solution]

It sounds like you've lost your certificate or it has expired.

[Bluemoon]

How can i renew the certificate in Windows 10??

[TRF]

Can't help you for this subject. I suggest you to go to a Microsoft forum or may StackExchange.

[Sillysheep]

Has your problem been solved? I have also encountered this problem. I have tried all the methods we said, but it has no effect. 

And I have no problem using python.

If you solve it, I urgently hope you can share it with me, and I will be very grateful!