For each contentType the admin can define how the Last-Modified and Expires headers will be dated in relation to the date the page was generated.
Expires header can be set to now or a week, a month, a year from now, while.
Installation
Unpack in your modules folder (usually /sites/all/modules/) and enable under Administer > Site Building > Modules.
Requirements:
· Drupal 5.x
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