auth-relaytest - attempt to use authenticated SMTP to relay to a DSBL-
auth-relaytest [-tv] ntlm <ip address[:port]>
auth-relaytest [-tv] (cram-md5|login) <username> <password> <ip
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
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.
-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
Paul Howarth <firstname.lastname@example.org>
Ian Gulliver <email@example.com>
dsbl.conf(5), spamtrap(1), relaytest(1)