John Grant wrote:

> We want our remote users to be able to send email with our company domain
> name on it, without a) having to have customer firewalls reconfigured, or
> b)leaving our mail server open as a spam relay.

No need to. You can use tcpserver to allow "relay" only from the
internal IP addresses. See the two consecutive FAQ questions starting at

ftp://koobera.math.uic.edu/www/qmail/faq/servers.html#tcpserver-smtpd

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 \  \ /  /   _______________________________________________
  \  V  /   |Juan Carlos Castro y Castro                    |
   \   /    |[EMAIL PROTECTED]                          |
   /   \    |Linuxeiro, alvinegro, X-Phile e Carioca Folgado|
  /  ^  \   |Diretor de Inform�tica e Eventos Sobrenaturais |
 /  / \  \  |da E-RACE CORPORATION                          |
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