VERIFIED SOLUTION i
Product Feature: Installation
The bounce code in Portrait Dialogue's Dialogue Admin is different from SMTP bounce codes. Below is a screenshot comparing both.
The reason they are different is that bounce handling in Portrait Dialogue is done by a third-party library called BoogieBounce.
Portrait Dialogue handles all replies to the reply address configured in Bounce email setup with this functionality, the codes are different and include more than the standard SMTP return codes.
The URL below can provide more information on the BoogieBounce codes.
UPDATED: April 19, 2017