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CentOS 7.0 - man page for lmtptest (centos section 1)

LMTPTEST(1)						      General Commands Manual						       LMTPTEST(1)

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NAME
lmtptest - interactive LMTP test program
SYNOPSIS
lmtptest [ -t keyfile ] [ -p port ] [ -m mechanism ] [ -a userid ] [ -u userid ] [ -k num ] [ -l num ] [ -r realm ] [ -f file ] [ -n num ] [ -c ] [ -i ] [ -o option=value ] [ -v ] hostname
DESCRIPTION
lmtptest is a utility that allows you to authenticate to a LMTP server and interactively issue commands to it. Once authenticated you may issue any LMTP command by simply typing it in. It is capable of multiple SASL authentication mechanisms and handles encryption layers transparently. This utility is often used for testing the operation of a lmtp server. Also those developing LMTP clients find it useful.
OPTIONS
-t keyfile Enable TLS. keyfile contains the TLS public and private keys. Specify "" to negotiate a TLS encryption layer but not use TLS authentication. -p port Port to connect to. If left off this defaults to lmtp as defined in /etc/services. -m mechanism Force lmtptest to use mechanism for authentication. If not specified the strongest authentication mechanism supported by the server is chosen. -a userid Userid to use for authentication; defaults to the current user. This is the userid whose password or credentials will be presented to the server for verification. -u userid Userid to use for authorization; defaults to the current user. This is the userid whose identity will be assumed after authentica- tion. NOTE: This is only used with SASL mechanisms that allow proxying (e.g. PLAIN, DIGEST-MD5). -k num Minimum protection layer required. -l num Maximum protection layer to use (0=none; 1=integrity; etc). For example if you are using the KERBEROS_V4 authentication mechanism specifying 0 will force lmtptest to not use any layer and specifying 1 will force it to use the integrity layer. By default the maximum supported protection layer will be used. -r realm Specify the realm to use. Certain authentication mechanisms (e.g. DIGEST-MD5) may require one to specify the realm. -f file Pipe file into connection after authentication. -n num Number of authentication attempts; default = 1. The client will attempt to do SSL/TLS session reuse and/or fast reauth (e.g. DIGEST-MD5), if possible. -c Enable challenge prompt callbacks. This will cause the OTP mechanism to ask for the the one-time password instead of the secret pass-phrase (library generates the correct response). -i Don't send an initial client response for SASL mechanisms, even if the protocol supports it. -o option=value Set the SASL option to value. -v Verbose. Print out more information than usual.
SEE ALSO
lmtpd(8)
CMU
Project Cyrus LMTPTEST(1)