problemas ao enviar msg pro IRC

eu to usando o componente de irc client do Indy 9

e tendo mandar msg pro irc com mais de 255 mais nao rola pq tipo
ele diz q 255 eh mais caracteres q uma string pode suportar!

ex:

irc.say(´#canal´,´aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa´);

ae tem 256 caracteres ele da erro ..
alguem sabe como posso fazer com q o delphi envie essas palavras?