[otrs] Reply eMail with password

1.) Is there a possibility to send automaticly an email WITH LOGIN DATAS amd password after a supportrequest. - Reply with eMail works fine - but how can i send in this reply with a password? is there any plugin i should install 2.) Can i map incomming eMails using the domain to a certain customer? - otherwise each eMail gets a customer and has to be sorted manualy? thanks for your help Peter Sereinigg