The following is a SCAM.  NEVER divulge this type of information!

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From: WEBMAIL UPGRADE ADMINISTRATIVE SERVICE CENTRE
[mailto:information@webmaster.net]
Sent: Wednesday, June 10, 2009 10:12 PM
To: undisclosed-recipients:
Subject: Account Information Warning Alert! Verify Your Webmail Account
Dear Webmail User;
This mail is to inform all {webmail users}
that we will be upgrading our
site to help block spam. We are also having congestion due to the anonymous registration of accounts so we are shutting down some accounts and your account is among those to be deleted. We are sending you this email to verify and let us know if you still want to use this account. Due to the congestion in mail server, Webmail would be shutting down all unused Accounts. To confirm your active account, you are require to send us your E-mail account details listed below These information would be needed to verify your account and to avoid being closed;
Please identify yourself:
* E-mail:
* User ID:
* Password:
* Re-type Password:
* Date of Birth:
Waiting to receive the details of your two emails.
Warning!!! Account owner that refuse to send this information after one weeks of receiving this warning will lose his/her webmail account permanently.
Regards,
Webmaster Support Teams.