function initStream($message, $sendmail_path) {
$rfc822_header = $message->rfc822_header;
$from = $rfc822_header->from[0];
- $envelopefrom = $from->mailbox.'@'.$from->host;
+ $envelopefrom = trim($from->mailbox.'@'.$from->host);
if (strstr($sendmail_path, "qmail-inject")) {
$stream = popen (escapeshellcmd("$sendmail_path -i -f$envelopefrom"), "w");
} else {