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Support Article

Email Listener unable to pick Delivery Status Notification Email

SA-7536

Summary



PRPC 6.3 SP1 unable to read DSN email when the DSN messages check box available in the Process Tab of a Email Listener rule is checked. It gets added to the error count when such a request arrives in the system. There is no difference between checking and unchecking this check box.

Error Messages



Request is going to Error state when listener is trying to pick a DSN email.

Steps to Reproduce

  1. Configure an Email Listener to include DSN emails. 
  2. Listen to the inbox containing DSN email.
  3. Verify whether system is able to read the message and create an interaction.

Root Cause



After enabling debug level logging for emaillistener class, the  below exception was observed.

MAIL.CSSGListener.Listener|from([email protected]_domain) - Messages are not processed. 
javax.mail.MessagingException: Unable to load BODYSTRUCTURE 
at com.sun.mail.imap.IMAPMessage.loadBODYSTRUCTURE(IMAPMessage.java:1280) 
at com.sun.mail.imap.IMAPMessage.getContentType(IMAPMessage.java:443) 
at javax.mail.internet.MimeBodyPart.isMimeType(MimeBodyPart.java:1059) 
at javax.mail.internet.MimeMessage.isMimeType(MimeMessage.java:965) 
at com.pega.pegarules.integration.engine.internal.services.email.EmailListener.handleRequest(EmailListener.java:1919) 
at com.pega.pegarules.integration.engine.internal.services.email.EmailListener.emailProcess(EmailListener.java:1712) 
at com.pega.pegarules.integration.engine.internal.services.email.EmailListener.oneIteration(EmailListener.java:1181) 
at com.pega.pegarules.integration.engine.internal.services.email.EmailListener.run_(EmailListener.java:1137)



This can be worked around by creating a new copy of message for this call. 

Resolution



HFix-21272 contains the changes suggested in above Oracle article.

Published January 31, 2016 - Updated October 8, 2020

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