IronPort - advanced configuration guide

Delay Warning Messages
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Cisco IronPort AsyncOS 7.6 for Email Advanced Configuration Guide
Chapter 2 Configuring Routing and Delivery Features
Time in Queue Messages (delay notification messages) generated by the system also use the DSN
format. Change the default parameters by using the Bounce Profiles page on the Network menu (or the
bounceconfig command) to edit existing or create new bounce profiles and change the default values
for:
The minimum interval between sending delay warning messages.
The maximum number of delay warning messages to send per recipient.
Delay Warning Messages and Hard Bounces
Note that it is possible to receive both a delay warning and a hard bounce for the same message
simultaneously, if you have set a very small durations for both the “Maximum Time in Queue” setting
and the minimum interval setting for “Send Delay Warning Messages.” Cisco IronPort Systems
recommends using the default values for these settings as a minimum if you choose to enable sending of
delay warning messages.
Further, delay warning messages and bounce messages originated by the appliance may be delayed by
as much as 15 minutes during processing.
Creating a New Bounce Profile
In the following example, a bounce profile named bouncepr1 is created using the Bounce Profiles page.
In this profile, all hard bounced messages are sent to the alternate address
bounce-mailbox@example.com. Delay warnings messages are enabled. One warning message will be
sent per recipient, and the default value of 4 hours (14400 seconds) between warning messages is
accepted.
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