SMTPTEST(1) SMTPTEST(1) NAME smtptest - interactive SMTP test program SYNOPSIS smtptest [ -t keyfile ] [ -p port ] [ -m mechanism ] [ -u user ] [ -a user ] [ -k num ] [ -l num ] [ -r realm ] [ -f file ] [ -n num ] [ -s ] [ -c ] [ -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 multiple SASL authentica- tion mechanisms and handles encryption layers transpar- ently. This utility is often used for testing the opera- tion 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 specified the strongest authentication mech- anism supported by the server is chosen. -u user Username to use for authentication; defaults to the current user. -a user Authname to use for authentication; defaults to the current user. -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 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 pass- word instead of the secret pass-phrase (library generates the correct response). -v Verbose. Print out more information than usual. SEE ALSO sendmail(8) SMTPTEST(1)[top]
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