From nbSMTP manpage: nbSMTP is a lightweight SMTP client. It simply takes a message from STDIN and sends it to a relayhost. A relayhost is meant to be a full SMTP server and it will really send the message.

## Installation

Install nbSMTP from the [AUR](/index.php/AUR "AUR"): [nbsmtp](https://aur.archlinux.org/packages/nbsmtp/).

## Forward to a Gmail Mail Server

To configure nbSMTP, you will have to edit its configuration file (`~/.nbsmtprc`) and enter your account settings:

```
relayhost=smtp.gmail.com
port=587
use_starttls=True
fromaddr=myusername@gmail.com
auth_user=myusername@gmail.com
auth_pass=myultrasecretpassword

```

Be careful with permissions on this file, it is recommendable to run this:

```
chmod 600 ~/.nbsmtprc

```

To test the configuration, create a file (`testemail`):

```
To: myusername@gmail.com
From: myusername@gmail.com
Subject: nbsmtp test
hello email world

```

and then run:

```
/usr/bin/nbsmtp < testemail

```