The mailserver within K1000 appliances is Exim. The SMTP errors will be familiar to you if you have worked with other SMTP servers. This document refers to some of the more common errors that you will see.
This list of codes is the standard SMTP error codes you will find in most email bounces.
K1000 Systems Management Appliance
5.5.x, 5.4.76847, 5.4.70402
Created on: 11/22/2013
Last Update on: 8/12/2014