Sending email from a forwarded account.

I have 3 secondary hotmail accounts forwarded to my main hotmail account.  I changed the password on one of the accounts, and now cannot send email from that account through the main account that it is forwarded to.  I have always been able to do this before.  I have logged out and in of both of these accounts numerous times.  Checked all the settings that I can see and everything seems fine.  I am still able to send email from my main account for the other forwarded accounts that are forwarded without any problem.  So it definitely has something to do with the fact that I changed the password on that one account.  I need help fast!