In the future, please start a new thread instead of hijacking one started by
someone else with a different error message.
When you get that repeated prompt for username and password, click Cancel,
which should then produce an error message. Right-click on your error message,
copy, then paste it into a reply here. We can't do much troubleshooting without
the complete error message.
First, test your password by logging in to your provider's webmail.
If that works, it proves you have the correct username and password.
What type of mail account is it, POP, IMAP, or Live/Hotmail?
Which antivirus are you running?
As a minimum, email scanning in the antivirus must be turned off,
although that may not be sufficient to eliminate all bad effects.
In a worst case scenario, your antivirus may need to be uninstalled.
For more on why email scanning in your antivirus is bad, see:
http://thundercloud.net/infoave/tuto...ning/index.htm
Gary VanderMolen, Microsoft MVP (Mail)
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"orangecami" wrote in message news

36C948E-63C8-4727-876A-...
> .
> Hi guys...I have the same error but instead of 550 I have 531, and I tried to do what u instructed Patrick but now a windows
> security logon box is appearing asking me for user name and password and after I write everything in the box but few seconds
> later is there again asking for username and password...and its going on and on...what did I do wrong?