[ExchangeList] Mail Relay Issue-- Urgent

  • From: IT Buzz <it_buzz2k7@xxxxxxxxxxx>
  • To: exchangelist@xxxxxxxxxxxxx
  • Date: Sat, 28 Apr 2007 11:54:31 +0100 (BST)

Dear All,
We are using Exchange server 2003 enterprise edition on Windows 2003 enterprise edition.
I am facing a very critical problem in our exchange environment.
Any internal user can send mail through outlook express or by configuring MS Outlook with POP3 account using Internal SMTP address ( Backend Exchange server's Ip) without any prompt for password, even if the user is using a wrong password then also he can send mail successfully.
If i am correct, I think it is a mail relay issue, but i dont know the procedure.
Please help.....

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