Add docs for email backend

_includes/config.yaml

@@ -56,6 +56,29 @@ currencies:
   - NZD
   - USD
 
+# Email backend configuration
+# Ref: https://docs.djangoproject.com/en/dev/topics/email/
+# Available options:
+# host: Email server host address
+# port: Email port
+# username: Account username
+# password: Account password
+# prefix: Email subject prefix
+# tls: Enable TLS support
+# ssl: Enable SSL support
+
+# Alternatively, these options can all be set using environment variables
+# Refer to the InvenTree documentation for more information
+
+email:
+  host: ''
+  port: 25
+  username: ''
+  password: ''
+  prefix: '[InvenTree] '
+  tls: False
+  ssl: False
+
 # Set debug to False to run in production mode
 debug: True
 

docs/start/config.md

@@ -69,7 +69,7 @@ Database options are specified under the *database* heading in the configuration
 
 The following database options can be configured:
 
-| Environment Variable | Settings File | Description |
+| Environment Variable | COnfig File | Description |
 | --- | --- | --- |
 | INVENTREE_DB_ENGINE | database.ENGINE | Database backend |
 | INVENTREE_DB_NAME | database.NAME | Database name |
@@ -121,6 +121,24 @@ It is then up to the database adminstrator to create a new PostgreSQL database t
 
 The database options (in the `config.yaml` file) then need to be adjusted to communicate the PostgreSQL backend. Refer to the [Django docs](https://docs.djangoproject.com/en/dev/ref/databases/) for further information.
 
+### Email Backend
+
+InvenTree email settings must be correctly configured to allow sending emails.
+
+Email options are specified under the *email* heading in the configuration file. Alternatively email settings can be set via environment variables.
+
+The following email options can be configured:
+
+| Environment Variable | Config File | Description |
+| --- | --- | --- |
+| INVENTREE_EMAIL_HOST | email.host | Email service host address |
+| INVENTREE_EMAIL_PORT | email.port | Email service host port |
+| INVENTREE_EMAIL_USERNAME | email.username | Account username |
+| INVENTREE_EMAIL_PASSWORD | email.password | Account password |
+| INVENTREE_EMAIL_PREFIX | email.prefix | Email subject prefix - default is "[InvenTree] " |
+| INVENTREE_EMAIL_TLS | email.tls | Enable TLS support |
+| INVENTREE_EMAIL_SSL | email.ssl | Enable SSL support |
+
 ### Allowed Hosts / CORS
 
 By default, all hosts are allowed, and CORS requests are enabled from any origin. **This is not secure and should be adjusted for your installation**. These options can be changed in the configuration file.