[LBo] Help problem with kmail (1.9.5)

[Tim]

In Kmail I have several folder setup for various mailing lists etc, I also 
have four seperate e-mail accounts (4 different providers). A while ago I 
found a setting in Kmail that would allow me to assign a particular e-mail 
address to each of these mailing list so that if I highlighted a mailing 
folder and then clicked on new mail the correct e-mail address (Identity) 
would be selected. Problem is now I have changed the e-mail address I am 
subscribed to on some of these mailing lists but I can't find where the 
setting to change the preferred e-mail address (Identity). Even if I manually 
select the identity it still trys to send the message vai the old e-mail 
address but will then get bounced as I am no loger registered on the old 
address.

Can anybody tell me where this setting is???

Thanks in advance

Tim