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auth-relaytest(1)      DragonFly General Commands Manual     auth-relaytest(1)


NAME

       auth-relaytest - attempt to use authenticated SMTP to relay to a DSBL-
       compliant host


SYNOPSIS

       auth-relaytest [-tv] ntlm <ip address[:port]>
       auth-relaytest [-tv] (cram-md5|login) <username> <password> <ip
       address[:port]>


DESCRIPTION

       auth-relaytest attempts to connect to the specified <ip address> on the
       specified port (default is port 25) and tries to use the supplied
       authentication data to relay mail through the host.

       auth-relaytest uses the sender_user, sender_domain, target_user,
       target_domain, and auth-message parameters from dsbl.conf(5) by
       default. If the auth-message parameter is not present, the message
       parameter is used instead.

       In the first mode of operation shown, auth-relaytest attempts to
       authenticate using anonymous NTLM authentication. A well-known bug in
       certain Microsoft SMTP server implementations (described at
       http://www.microsoft.com/technet/security/bulletin/MS02-011.asp) will
       allow relaying for any client that authenticates in this way.

       In the second form of operation, auth-relaytest attempts to
       authenticate using either the cram-md5 or login variant of SMTP AUTH,
       using the supplied username and password.


OPTIONS

       -t     Test mode. Instead of using the target_domain parameter from
              dsbl.conf(5), the test_target_domain parameter is used instead.
              This is useful for sending a test message to yourself, perhaps
              to check that the server is actually relaying the messages.

       -v     Verbose mode. Details of the SMTP transaction are written to
              standard output.


AUTHORS

       Paul Howarth <paul@city-fan.org>
       Ian Gulliver <ian@penguinhosting.net>


SEE ALSO

       dsbl.conf(5), spamtrap(1), relaytest(1)

                                  2004-01-06                 auth-relaytest(1)

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