Curl problems

Hello all. I use curl to make a call to another page on my site... but it operates erroneously.... sometimes working... sometimes not. The page it calls creates an email and I can see on the server the email in the queue when it's working. If I echo out the URL the curl command is supposed to load and load it manually, it works without fail. Any help on what I am doing wrong below is greatly appreciated. Thanks. $curl_handle=curl_init(); curl_setopt($curl_handle,CURLOPT_URL,'https://mydomain.com/email_confirmation.htm?id_order='.$id_order.'&sess_id='.$sess_id); curl_exec($curl_handle); curl_close($curl_handle); --Rick