Re: phpdoc /en/reference/mail/functions mail.xml

>      You must use <literal>\r\n</literal> to separate headers, although
> -     some Unix mail transfer agents may work with just a single newline
> -     (<literal>\n</literal> ).
> +     some Unix mail transfer agents replace <literal>\n</literal> by
> +     <literal>\r\n</literal> automatically (leads to doubling
> +     <literal>\r</literal> if <literal>\r\n</literal> is used).

The problem with this is \n is wrong, and \r\n is right. If you're a new
user, and you read the above, what would you use? I'd most certainly use \n,
which is exactly what we don't want, right?