When clicking names after opening the To box, an abreviated (three letter)
entry will bring up the needed name. E.G. for someone whose address is,
say, luvable@such&such.net, the three etters 'luv' will cause the address to
fill in.
How is this determined? And is it possible to create a different three
letter entry to generate a fill in?

It's being read from a cache of names you've recently used. There is no
"three letter abbreviation" feature; your typed three letters matched with
only a single entry in you cache so that is why it is the only address
offered.

--
Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
Outlook FAQ, HowTo, Downloads, Add-Ins and more

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"Old Red One" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> When clicking names after opening the To box, an abreviated (three letter)
> entry will bring up the needed name. E.G. for someone whose address is,
> say, luvable@such&such.net, the three etters 'luv' will cause the address
> to fill in.
> How is this determined? And is it possible to create a different three
> letter entry to generate a fill in?
>