External User cannot send mail

  • From: "Qusai Ali AL Haddad" <qusai@xxxxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Tue, 28 Oct 2003 00:57:11 -0300

Dear all i have exchange 2003 internal users can send email to each other and to outside domain

i have external users cannot send email to other Domains .. but they can send within the domain ... when they are sending to other domains .. they are getting Unable to relay 550..

any help

thanx alot


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