Basically I want to send e-mail from my website but I have a big problem: my provider don't let me access the php.ini file is there any other way to setup parameters for the mail() function?
PHP mailer is what I use: https://github.com/PHPMailer/PHPMailer
I think it is probably more effective, efficient and provides more functionality than normal php mail does anyway.
You can always go the route of a web service as well. Amazon offers a nifty service that is free: Amazon SNS