How to configure postfix to resend soft bounces after X hours on Debian

This is a complete noob question for postfix, but I have to administer a live installation, and in need of reconfiguring the resend rate.

Help would be appreciated.

From serverfault $pageUsers[$entry.posts[0].author].name

• You want the delay_warning_time parameter, set it to say, 4h to behave a bit like sendmail :

  delay_warning_time (default: 0h)
         The  time  after  which the sender receives the message headers of mail
         that is still queued.
  
         To enable this feature, specify a  non-zero  time  value  (an  integral
         value plus an optional one-letter suffix that specifies the time unit).
  
         Time units: s (seconds), m (minutes), h (hours), d (days),  w  (weeks).
         The default time unit is h (hours).
  

  That is, either do a :

  postconf -e delay_warning_time=4h
  

  or edit the main.cf file and put delay_warning_time=4h.

  voretaq7 : I'm not sure this is what partoa is looking for -- It sounds like he wants to configure the actual resend (retry) rate, not how long it takes postfix to send the originator a "Hey I'm still trying to deliver that message" email. (I could be misreading the original Q. though)
  From mat

• Parameters minimal_backoff_time, maximum_backoff_time and queue_run_delay might help you.

  maximal_backoff_time (default: 4000s)

  The maximal time between attempts to deliver a deferred message.
  
  This parameter should be set to a value greater than or equal to
  

  $minimal_backoff_time. See also $queue_run_delay.

  Time units: s (seconds), m (minutes), h (hours), d (days), w
  

  (weeks). The default time unit is s (seconds).

  For more information see the Postfix documentation about the parameters

  From Janne Pikkarainen