Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!snorkelwacker!bloom-beacon!eru!hagbard!sunic!kth.se!hemuli.tik.vtt.fi!vttux1.vtt.fi
From: keijo@vttux1.vtt.fi (keijo tuominen)
Newsgroups: comp.mail.sendmail
Subject: Sender's name field
Message-ID: <5092@hemuli.tik.vtt.fi>
Date: 10 Sep 90 13:33:24 GMT
Sender: news@hemuli.tik.vtt.fi
Organization: Technical Research Centre of Finland
Lines: 12

How can i make this line below look like:
From: keijo@vttux1.vtt.fi (keijo tuominen)
This:
From: keijo.tuominen@vttux1.vtt.fi (keijo tuominen)
So is it possible that i make some kind of database where sendmail 
matches names like keijo or something else and moves them to keijo.tuominen
or something firstname.lastname
--
 * Tuominen Keijo                       E-mail adresses:            *
 * Klaneettitie 18 d 56 00420 HKI    keijo.tuominen@.vtt.fi (Office)*
 * Phone (Home): 90-538606                   TELEFAX:   	    *
 * Phone (Office): 456-4295 VTT            +358 0 460648  	    *