Attached in a ZIP file you may find 3 search plugins respectively for All OFBiz ML List (User+Dev+Annonce), User ML and
Dev ML. I used Nabble for that. I don't know how far is the history but it works anyway.
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For history you may look at
http://lists.ofbiz.org/mailman/listinfo
history of users is here for example http://lists.ofbiz.org/pipermail/users/
There is no embedded search tool but you may use google site search option
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