Allow Duplicate Messages in /DeadLetter

The FTP Server adapter places failed uploads in the DeadLetter mailbox.

About this task

To monitor failed uploads, you may wish to retain these duplicate messages, while still disallowing duplicates in the rest of the system. The disallowDeadLetterDuplicateMessages property in the mailbox.properties.in file allows duplicates in the Deadletter mailbox only, overriding the mailbox-wide property disallowDuplicateMessages.

To allow duplicate messages in the /Deadletter mailbox only:

Procedure

  1. Use a text editor to edit the install_dir/properties/mailbox.properties.in file. mailbox.properties.in file.
  2. Set the value for the disallowDuplicateMessages property to true. Example: disallowDuplicateMessages=true
    Note: Retain the default value for the disallowDeadLetterDuplicateMessages parameter. Example: disallowDeadLetterDuplicateMessages=false
  3. Apply the configuration changes. Enter the appropriate command based upon your operating system:
    • setupfiles.sh (Unix)
    • setupfiles.cmd (Windows)
  4. Restart the application for changes to the mailbox.properties.in file to take effect.