I am use-ing a script to send some text to visitors of my site. The only problem is that it doesn't always works. Until know only one e-mail adress is working (firstname.lastname@example.org), but an e-mail adres at hotmail for example doesn't work. The error I get is : Error encountered: 553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1) <BR><BR>I am using a smtp server and i have my site uploaded. Hopefully someone can help me white this problem.