make the cell hyperlink to any name within it

Create a table with two columns, column A would be a name, Paul etc, column B would contain the equivalent email address from column A

Select the range of data entered then choose Insert Menu and Name and enter a name for this range (I've used the name TEST). Then use Data Sort (this function wont work unless the data is sorted into order).

Highlight the cell you want say C2 and enter this formula

=VLOOKUP(D1,TEST,2)

If you enter a name in D1 the email address will appear in D2

Regards
Special-K