Specifying the retry time using the CLI

Use the following command to set the number of seconds that must pass before the Email Security - Server appliance can attempt to resend an email from the deferred queue. The default value is 300 seconds.

Follow these steps:

Go to CLI configuration mode.

hostname > enable

hostname # configure terminal

Set the number of seconds (from 60-900) for the retry timer:
hostname (config) # email-analysis mta min-deferbackoff-time <seconds>
To reset the retry timer to the default value of 300 seconds:
hostname (config) # [no] email-analysis mta min-deferbackoff-time

View the current retry time configuration for the email analysis MTA by checking the value displayed for the minimal backoff time. In the following example, the retry time is set to the default value:

hostname (config) # show email-analysis mta config 
  Email MTA Configuration:
    smtp-bind-address :              0.0.0.0
    client-connection-limit :        50
    default-process-limit :          102400
    header-size-limit :              50
    hopcount-limit :                 50
    destination-concurrency-limit :  50
    max-queue-lifetime :             5
    max-bounced-lifetime :           5
    message-size-limit :             990
    smtp-line-length-limit :         300
    smtpd-timeout :                  20
    tls-received-header :            yes
    softbounce :                     yes
    client-header :                  no
    pickup-timeout :                 60
    minimal_backoff_time :           300
	    
	.
	.
	.

Save your changes.
hostname (config) # write memory