Version:           unspecified (using KDE 4.7.2) 
OS:                Linux

when you select a list of diffusion (MyDiffusionList for example) in
 contacts as recipient, kmail2 don't subsitute the list name par the mail adresses
 of the members but send the mail to MyDiffusionList@hostname (where
 hostname is the name of your computer), which of course doesn't exist.

The correct behaviour for Kmail would be to substitute the list name by each mail adress of all the members of the list of diffusion.


Reproducible: Always

Steps to Reproduce:
select new message
click select for the field "To"
select a list of diffusion
click add as recipient
send the mail

Actual Results:  
if you select a list of diffusion named, for exemple, "MyDiffusionList" the recipient is "MyDiffusionList@hostname" where hostname is the name of your computer

Expected Results:  
substitution of "MyDiffusionList" by each of the mail adress of all the members of the list in the recipient field.