smtptest(1) smtptest(1)
NAME
smtptest - interactive SMTP test program
SYNOPSIS
smtptest [ -t keyfile ] [ -p port ] [ -m mechanism ]
[ -a userid ] [ -u userid ] [ -k num ] [ -l num ]
[ -r realm ] [ -f file ] [ -n num ] [ -s ] [ -c ]
[ -i ] [ -o option=value ] [ -v ] hostname
DESCRIPTION
smtptest is a utility that allows you to authenticate to a SMTP server
and interactively issue commands to it. Once authenticated you may
issue any SMTP command by simply typing it in. It is capable of multi-
ple SASL authentication mechanisms and handles encryption layers trans-
parently. This utility is often used for testing the operation of a
smtp server. Also those developing SMTP 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 smtp as defined
in /etc/services.
-m mechanism
Force smtptest to use mechanism for authentication. If not spec-
ified 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 pre-
sented 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 authen-
tication. 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 mecha-
nism specifying 0 will force smtptest 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.
-s Enable SMTP over SSL (smtps).
-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
sendmail(8)
CMU Project Cyrus smtptest(1)
Mac OS X 10.6Server - Generated Wed Apr 14 06:06:04 CDT 2010