[otrs] otrs ticket is almost unreadable because of a lot of email replies

hi, does anyone of you guys know, how i could deal with the problem, that a ticket gets more and more unreadable because of a lot of email communication (replies) with the customer? does otrs offer a solution to this kind of problem? i am not searching for a solution like: "deleting the whole replies of the customer anytime i write him an email through otrs". i am more searching for a solution, that deletes the whole replies excepting the last one... so that the customer, does always see his last reply. hope you understand what i mean. thanks for your help. regards, patrick.