182 lines
4.7 KiB
Markdown
182 lines
4.7 KiB
Markdown
---
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layout: default
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title: SMTP
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parent: Notifier
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grand_parent: Configuration
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nav_order: 2
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---
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# SMTP
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**Authelia** can send emails to users through an SMTP server.
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It can be configured as described below.
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## Configuration
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```yaml
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notifier:
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disable_startup_check: false
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smtp:
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username: test
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password: password
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host: 127.0.0.1
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port: 1025
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sender: admin@example.com
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identifier: localhost
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subject: "[Authelia] {title}"
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startup_check_address: test@authelia.com
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disable_require_tls: false
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disable_html_emails: false
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tls:
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server_name: smtp.example.com
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skip_verify: false
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minimum_version: TLS1.2
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```
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## Options
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### username
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<div markdown="1">
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type: string
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{: .label .label-config .label-purple }
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required: no
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{: .label .label-config .label-green }
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</div>
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The username sent for authentication with the SMTP server. Paired with the password.
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### password
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<div markdown="1">
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type: string
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{: .label .label-config .label-purple }
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required: no
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{: .label .label-config .label-green }
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</div>
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The password sent for authentication with the SMTP server. Paired with the username. Can also be defined using a
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[secret](../secrets.md) which is the recommended for containerized deployments.
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### host
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<div markdown="1">
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type: integer
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{: .label .label-config .label-purple }
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required: yes
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{: .label .label-config .label-red }
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</div>
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The hostname of the SMTP server.
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If utilising an IPv6 literal address it must be enclosed by square brackets and quoted:
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```yaml
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host: "[fd00:1111:2222:3333::1]"
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```
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### port
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<div markdown="1">
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type: integer
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{: .label .label-config .label-purple }
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required: yes
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{: .label .label-config .label-red }
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</div>
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The port the SMTP service is listening on.
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### sender
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<div markdown="1">
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type: string
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{: .label .label-config .label-purple }
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required: no
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{: .label .label-config .label-green }
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</div>
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The address sent in the FROM header for the email. Basically who the email appears to come from. It should be noted
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that some SMTP servers require the username provided to have access to send from the specific address listed here.
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### identifer
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<div markdown="1">
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type: string
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{: .label .label-config .label-purple }
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default: localhost
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{: .label .label-config .label-blue }
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required: no
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{: .label .label-config .label-green }
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</div>
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The name to send to the SMTP server as the identifier with the HELO/EHLO command. Some SMTP providers like Google Mail
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reject the message if it's localhost.
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### subject
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<div markdown="1">
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type: string
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{: .label .label-config .label-purple }
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default: [Authelia] {title}
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{: .label .label-config .label-blue }
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required: no
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{: .label .label-config .label-green }
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</div>
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This is the subject Authelia will use in the email, it has a single placeholder at present `{title}` which should
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be included in all emails as it is the internal descriptor for the contents of the email.
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### startup_check_address
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<div markdown="1">
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type: string
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{: .label .label-config .label-purple }
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default: test@authelia.com
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{: .label .label-config .label-blue }
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required: no
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{: .label .label-config .label-green }
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</div>
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**Authelia** checks the SMTP server is valid at startup, one of the checks requires we ask the SMTP server if it can
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send an email from us to a specific address, this is that address. No email is actually sent in the process. It is fine
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to leave this as is, but you can customize it if you have issues or you desire to.
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### disable_require_tls
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<div markdown="1">
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type: boolean
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{: .label .label-config .label-purple }
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default: false
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{: .label .label-config .label-blue }
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required: no
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{: .label .label-config .label-green }
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</div>
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For security reasons the default settings for Authelia require the SMTP connection is encrypted by TLS. See [security]
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for more information. This option disables this measure (not recommended).
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### disable_html_emails
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<div markdown="1">
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type: boolean
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{: .label .label-config .label-purple }
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default: false
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{: .label .label-config .label-blue }
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required: no
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{: .label .label-config .label-green }
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</div>
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This setting completely disables HTML formatting of emails and only sends text emails. **Authelia** by default sends
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mixed emails which contain both HTML and text so this option is rarely necessary.
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### tls
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Controls the TLS connection validation process. You can see how to configure the tls section
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[here](../index.md#tls-configuration).
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## Using Gmail
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You need to generate an app password in order to use Gmail SMTP servers. The process is
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described [here](https://support.google.com/accounts/answer/185833?hl=en)
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```yaml
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notifier:
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smtp:
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username: myaccount@gmail.com
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# Password can also be set using a secret: https://www.authelia.com/docs/configuration/secrets.html
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password: yourapppassword
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sender: admin@example.com
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host: smtp.gmail.com
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port: 587
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```
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