o.k. it works for me now,
for everyone who has problems in getting the above example to work, there are two pitfalls which drove me crazy the last two days:
1. You must not check "hide in mailback-email" for the field with the selected adress in it. Allthough this makes sense, it would be good to mention it hin the dcoumentation.
2. You must not separate the Name>Adress pairs with a semicolon as shown by djhargrove in his example. The separation is done by commas ( I had to dig in the code to find out)
Hope it helps someone.
Tom