Anna,
I'd say there were other solutions of your provider wasn't Hotmail. Hotmail used to be a good e-mail provider about 15 minutes ago, but now it has new problems everyday. I don't know if they randomly block stuff or what, but my e-mails form certain networks can't be received by Hotmail users, and on others, e-mails from Hotmail usually bounce until the second or thirds time people resend them...