Postfix does not allow message files larger than 50MB. How can I change this?

Solution Verified - Updated -

Issue

  • Postfix does not allow message files larger than 50MB. How can I change this?
  • Once a message file hits the 50MB size, the mail user (postfix) cannot add to it.

Environment

  • Red Hat Enterprise Linux 6
  • postfix-2.6.6-2.2.el6_1

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