3 Replies Latest reply on Oct 30, 2007 9:02 AM by 432524

    receive empty sender mail

      Hi, i`m new in OCS.

      I`ve received a mail response from other domain when trying to send a mail
      this is part of the message:

      Final-Recipient: rfc822; user@remotedomain.com
      Action: failed
      Status: 5.5.0
      Last-Attempt-Date: Tue, 23 Oct 2007 16:25:29 -0500
      Diagnostic-Code: SMTP; 550-Callback setup failed while verifying <user@domain.com>
      550-(result of an earlier callout reused).
      550-The initial connection, or a HELO or MAIL FROM:<> command was
      550-rejected. Refusing MAIL FROM:<> does not help fight spam, disregards
      550-RFC requirements, and stops you from receiving standard bounce
      550-messages. This host does not accept mail from domains whose servers
      550-refuse bounces.
      550 Sender verify failed
      Remote-MTA: dns; remotedomain.com

      From what I understand I need to receive mail from <> , empty or null sender but have been unable to find in the SMTP Inbound Server where to activate this option.
      I thought the option was "Remitentes rechazados" (spanish) but it didn`t work

      When talking to the server directly this is the result:

      telnet mail.domain.com 25
      Trying XXX.XXX.XXX.XXX..
      Connected to mail.domain.com (XXX.XXX.XXX.XXX).
      Escape character is '^]'.
      220 server ready. Unauthorized Access Prohibited.
      HELO domain.com
      250 mail.domain.com Hello 192.168.XXX.XXX, pleased to meet you
      mail from:
      550 5.7.1 Mail command failed: Mail denied due to site's policy
      mail from: <>
      550 5.7.1 Mail command failed: Mail denied due to site's policy

      So, i need to change this policy.

      Thanks in advance