Try:
{If{REF Dropdown2}= "Donald Duck" "Donald.Duck{If{REF Dropdown1}= "Company B" "@companyb.com"}"}{If{REF Dropdown2}= "Mickey Mouse" {If{REF Dropdown1}= "Company B" "Mickey_Mouse@companyb.com" "Mickey.Mouse"}}{If{REF Dropdown2}= "Minnie Mouse" {If{REF Dropdown1}= "Company B" "Minnie_Mouse@companyb.com" "Minnie.Mouse"}}{If{REF Dropdown1}= "Company A" "@companya.ca" {If{REF Dropdown1}= "Company C" "@companyc.ca"}}



Note: This has nothing to do with macros - it concerns only field coding.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

Hi Paul...I tried copying/pasting the coding you provided but it isn't working for me. I'm fairly new at this and I'm not sure if it is the coding that isn't working, or something I did? Would you be able to add it to the file I uploaded and I can cross reference it with what I have?