Account: 'pop.charter.net', Server: 'pop.charter.net', Protocol: POP3, Server Response: '-ERR An authentication mechanism MUST be entered', Port: 110, Secure(SSL): No, Server Error: 0x800CCC90, Error Number: 0x800CCC18 What Do I do??

Hi, Go to Tools, Accounts, select that mail account, Properties, Servers. Make sure that "Log on using Secure Password Authentication" is not enabled. If that setting was already unchecked, which antivirus are you running? Some of them cause problems with Windows Mail over time. Make sure your antivirus is not configured to scan emails. I hope this will help you. Also this is not Exchange related issue so kindly post these kind of queries on Windows Vista or Windows 7 Forums. Regards. Shafaquat Ali.M.C.I.T.P Exchange 2007/2010, M.C.I.T.P Windows Server 2008, M.C.T.S OCS Server 2007 R2, URL: http://blog.WhatDoUC.net Phone: +923008210320

Hi, As your problem is about Windows Vista, please get help from Windows Vista forum. Here is the link of the Windows Vista forum: http://social.technet.microsoft.com/Forums/en-US/category/windowsvistaitpro If you have any problems about Exchange Server, please ask in a new post. Thanks, Tyler

Hi, As your problem is about Windows Vista, please get help from Windows Vista forum. Here is the link of the Windows Vista forum: http://social.technet.microsoft.com/Forums/en-US/category/windowsvistaitpro If you have any problems about Exchange Server, please ask in a new post. Thanks, Tyler