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Support Article

SendEmailMessage function does not support TLSv1.2 handshake

SA-68674

Summary



Emails are sent through SMTP with STARTTLS. The SMTP server only supports TLSv1.2. Error occurs when running Test connectivity from the Pega EmailAccount rule.


Error Messages



[WebContainer : 12] [TABTHREAD1] [PegaRULES:07.10] (pega_integrationengine_default) ERROR HOSTNAME|IPADDRESS [email protected]pega.com - Exception caught while testing connection to SMTPHOSTNAME as user PegaMailbox@DOMAIN
javax.mail.MessagingException: Could not connect to SMTP host: SMTPHOSTNAME, port: 25;
  nested exception is:
      javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
      at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2055)
      at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:697)
      at javax.mail.Service.connect(Service.java:364)
      at javax.mail.Service.connect(Service.java:245)
      at com.pegarules.generated.SendEmailMessage_071017_QqZSmK6END_WjYi_YBeMHA.SendEmailMessage07_10_17(SendEmailMessage_071017_QqZSmK6END_WjYi_YBeMHA.java:309)
      at com.pegarules.generated.SendEmailMessage_071017_QqZSmK6END_WjYi_YBeMHA.invoke(SendEmailMessage_071017_QqZSmK6END_WjYi_YBeMHA.java:87)
      at com.pega.pegarules.generation.internal.library.LibraryRuntime.resolveAndinvokeFunctionViaReflection(LibraryRuntime.java:133)
      at com.pega.pegarules.generation.internal.library.LibraryRuntime.invokeLibraryRuntime(LibraryRuntime.java:110)
      at com.pega.pegarules.session.internal.mgmt.Executable.invokeLibraryRuntime(Executable.java:8954)
      at com.pega.pegarules.priv.generator.LibrarySupport.resolveAndInvokeFunctionViaReflection(LibrarySupport.java:181)
      at com.pegarules.generated.pega_integrationengine_default.SendEmailMessage(pega_integrationengine_default.java:167)
      at com.pegarules.generated.activity.ra_action_smtpconnectivity_1b1b973395b389d8461782791fd40dce.step8_circum0(ra_action_smtpconnectivity_1b1b973395b389d8461782791fd40dce.java:862)
      at com.pegarules.generated.activity.ra_action_smtpconnectivity_1b1b973395b389d8461782791fd40dce.perform(ra_action_smtpconnectivity_1b1b973395b389d8461782791fd40dce.java:222)
      at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3500)
      at com.pega.pegarules.session.internal.mgmt.Executable.invokeActivity(Executable.java:10521)
      at com.pegarules.generated.activity.ra_action_pysmtpconnectivity_7850fbed76b5c25248849851ebc5f379.step2_circum0(ra_action_pysmtpconnectivity_7850fbed76b5c25248849851ebc5f379.java:282)
** ** **
Caused by: 
javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
      at com.ibm.jsse2.c.c(c.java:65)
      at com.ibm.jsse2.c.a(c.java:70)
      at com.ibm.jsse2.SSLSocketImpl.a(SSLSocketImpl.java:530)
      at com.ibm.jsse2.SSLSocketImpl.h(SSLSocketImpl.java:264)
      at com.ibm.jsse2.SSLSocketImpl.a(SSLSocketImpl.java:741)
      at com.ibm.jsse2.SSLSocketImpl.startHandshake(SSLSocketImpl.java:100)
      at com.ibm.ws.ssl.config.WSSocket.startHandshake(WSSocket.java:414)
      at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:543)
      at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:348)
      at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:215)
      at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2019)



Steps to Reproduce



Execute TestConnectivity on the EmailAccount rule.


Root Cause



A defect in Pegasystems’ code or rules.
EmailAccount rule form does not facilitate providing JavaMail SMTP custom properties such as mail.smtp.ssl.protocols.


Resolution



Apply HFix-47897.


 

Published December 4, 2018 - Updated October 8, 2020

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