Hi From 2days before my Exchange's POP3 service failed suddenly....It means when i am trying to download the mails from the exchange the mail clients of every node hangs at authorisation but when i am restarting the excahnge it is working fine for 10 to 15 mins then the problem rerises. I am using SBS2000 (Exchange2000). Any suggestion will be appreciated Thanks ____________________________________________ Brajesh Ranjan Panda System Administrator Divas Offshore Software Technologies (P) Ltd. N-1/3, DLF Phase-II Gurgaon-122002, INDIA. Mobile:-9891744174 Telephone: +91-124-501880-1 to 8 Fax/Voice-mail: +91-124-5018044 Web: www.divassoftware.com ____________________________________________