smtp-cli

📨 Send emails right from your terminal.

We use this tool to send an informational email whenever someone logs in to one of our servers. Intended usage is via pam_exec(8).

Emails are sent directly via SMTP. The config is read from a json file, see Config.

The message body is produced via go templates, see Templates.

Installation

Download an archive (.tar.gz) from the latest release and run the install.sh script.

Usage

Add the following snippet to /etc/pam.d/sshd:

session    required     pam_exec.so /usr/local/bin/smtp-cli -config /usr/local/etc/smtp-cli/config.json -template /usr/local/etc/smtp-cli/template.gotmpl

Config

{
    "host":  "mail.example.org",
	"port":  465,
	"username":  "no-reply@example.org",
	"password":  "",
	"from":  "monitor <no-reply@example.org>",
	"to":  [
		"info <info@example.org>"
	],
	"subject": "New login to the server"
}

Templates

The following variables are made available to the go template:

Variable	Type
Host	string
User	string
RemoteUser	string
RemoteHost	string
Tty	string
Timestamp	time.Time

License

MIT

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