How to handle bounced postfix message

I am running postfix on linux. I get number of bounced messages everyday. Anyone know how to handle it? How to set postfix up to handle bounced emails? Also I cannot find configuration options in main.cf or in the configuration section.

Thank you for any suggestion.

To create a customized bounce template file, create a temporary copy of the file /etc/postfix/bounce.cf.default and edit the temporary file. To preview the results of $name expansions in the template text, use the command

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postconf -b temporary_file

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Errors in the template will be reported to the standard error stream and to the syslog daemon. While previewing the text, be sure to pay particular attention to the expansion of time value parameters that appear in the delayed mail notification text. Once the result is satisfactory, copy the template to the Postfix configuration directory and specify in main.cf something like:

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/etc/postfix/main.cf:
bounce_template_file = /etc/postfix/bounce.cf

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If the message is wrong or sender is not proper. Then its very important to deal with bounced messages. The following guide will show you how to configure custom Postfix bounce messages

The Postfix main.cf configuration file specifies a very small subset of all the parameters that control the operation of the Postfix mail system. Parameters not explicitly specified are left at their default values. Check out the general format of the main.cf file here.