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Email Listener does not forward unprocessed emails



Email Listener does not forward unprocessed messages. An exception appears in logs.

Error Messages

( ERROR EMAIL.Your_Listener.Listener - caught java.lang.NullPointerException when processing message number 0

Steps to Reproduce

Configure Email listener with conditions given below:
  1. Select Forward unprocessed messages, and enter forwarding email address.
  2. Enter maximum email size in the Process tab.
  3. Send an email with size more than what is mentioned in Process tab for email listener.

Root Cause

A defect in Pegasystems’ code or rules. Pega code throws NullPointerException with dynamic system setting email/blockResponse as True when forwarding unprocessed emails to the configured email account.


Perform the following local-change:
Set dynamic system setting
email/blockResponse to False in Pega-IntSvcs, and restart the listener.

Published April 6, 2016 - Updated October 8, 2020

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