Newline features and differences between php3 and php4

Morning all, I'm using the mail() function on a project for a client. His hosting provider currently offers php3, meanwhile I've been developing in php4. So far, I don't haven't found any problems other than the following: In php4, inside the mail function I use newline definitions to seperate data, and it works terrific. But in php3 mail() doesn't seem to parse the newline tags, and it prints them in the email body. Workarounds/fixes? Thanks in advance. -- Chris Hall hardwired industries