Hi there, My Microsoft Outlook works find as usual. I cant understand why but it seems that PIX has affected my Outlook Express. The error message I have got from Outlook Express is:- "Your POP3 server has not responded in 60 seconds. Would like to wait another 60 seconds for the server to respond?" - I don't think Microsoft Technet Q186272 is relevant to my case here as I am not using Outlook Express for Sun Solaris" on my NT 4 Workstation. "A time-out occurred while communicating with the server. Account :'User', Server: 'Machine A', Protocol: POP3, Port 110, Secure (SSL): No, Error Number:0x800CCC19. - The closest article I can find from Technet Q254926, which again, does not really suit my incident here as I have got error about POP3 Server, not SMTP Server. Plus, I do not have modem installed on my NT Workstation. Current environment:- Exchange POP3 Server = Machine A Exchange SMTP Server = Machine B Mail Client = Outlook Express and Microsoft Outlook Mail Relay Server = Machine C running on LINUX New Firewall on production = Cisco PIX Old Firewall = Firewall Checkpoint (just decomissioned last week) Please....if you can think of anything, I would really appreciate to hear your inputs. Thank you for your assistance. Regards, Bee-Yong THIS E-MAIL IS CONFIDENTIAL. If you have received this e-mail in error, please notify us by return e-mail and delete the document. If you are not the intended recipient you are hereby notified that any disclosure, copying, distribution or taking any action in reliance on the contents of this information is strictly prohibited and may be unlawful. Bayside Health is not liable for the proper and complete transmission of the information contained in this communication or for any delay in its receipt.