Truncating Lines

Hi, I have the following code, which reads in an html file $fd = fopen("somefile.html", "r"); while (!feof($fd)) { $buffer = fgets($fd, 4096); $body .= $buffer; } fclose($fd); I am then mailing this: if (mail($username." <".$email.">", $mailsubject, $body, "From: ".$Fromname." <".$Fromaddress.">\nContent-Type: text/html; charset=iso-8859-1 ")) All works fine, except when a particular line in the html file is unusually long. Where this is the case, the mail gets sent but the long line truncates (the last character on the line being ! (exclamation mark)) followed by the remainder of the line on a new line. This obviously causes problems when trying to display the HTML. Strangely though, if the recipient of the mail is a local user (i.e. a user residing on this box), the line does not truncate and the HTML source remains intact. Equally, if I write out the contents of $body to the screen, the HTML source is intact. I suspect Sendmail may be the culprit, but I'm not sure. I realise I could keep my HTML source lines to a certain length, however these are often created dynamically so it's not that straight forward.