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  • Exchange 2003 Not Receiving

    I have an Exchange 2003 on SBS 2003 DC. I installed Exchange and configured my MX with my Registrar, mail.dmmenterprises.net.. Now, I can send e-mails using the OWA to any e-mail address, but I cannot receive. The error is 550 No Such User. User is configured under AD Users and Exchange Mailbox is...

    Logiknetworks10 pointsBadges:
  • Help with E-Mail error code 550 5.7.1

    Can anyone help me please.  I am trying to send an email to a business account but I keep getting the mails bounced back to me with the following error code.  I have also tried to email someone else at their headquarters and get the same message...... reason: 550 5.7.1 Requested action not taken:...

    Dan197315 pointsBadges:
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