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gitea/docs/content/doc/administration/email-setup.en-us.md
Lunny Xiao e8433b7fe6
Restructure documentation. Now the documentation has installation, administration, usage, development, contributing the 5 main parts (#23629)
- **Installation**: includes how to install Gitea and related other
tools, also includes upgrade Gitea
- **Administration**: includes how to configure Gitea, customize Gitea
and manage Gitea instance out of Gitea admin UI
- **Usage**: includes how to use Gitea's functionalities. A sub
documentation is about packages, in future we could also include CI/CD
and others.
- **Development**: includes how to integrate with Gitea's API, how to
develop new features within Gitea
- **Contributing**: includes how to contribute code to Gitea
repositories.

After this is merged, I think we can have a sub-documentation of `Usage`
part named `Actions` to describe how to use Gitea actions

---------

Co-authored-by: John Olheiser <john.olheiser@gmail.com>
2023-03-23 23:18:24 +08:00

91 lines
3.2 KiB
Markdown

---
date: "2019-10-15T10:10:00+05:00"
title: "Usage: Email setup"
slug: "email-setup"
weight: 12
toc: false
draft: false
menu:
sidebar:
parent: "administration"
name: "Email setup"
weight: 12
identifier: "email-setup"
---
# Email setup
**Table of Contents**
{{< toc >}}
Gitea has mailer functionality for sending transactional emails (such as registration confirmation). It can be configured to either use Sendmail (or compatible MTAs like Postfix and msmtp) or directly use SMTP server.
## Using Sendmail
Use `sendmail` command as mailer.
Note: For use in the official Gitea Docker image, please configure with the SMTP version (see the following section).
Note: For Internet-facing sites consult documentation of your MTA for instructions to send emails over TLS. Also set up SPF, DMARC, and DKIM DNS records to make emails sent be accepted as legitimate by various email providers.
```ini
[mailer]
ENABLED = true
FROM = gitea@mydomain.com
MAILER_TYPE = sendmail
SENDMAIL_PATH = /usr/sbin/sendmail
SENDMAIL_ARGS = "--" ; most "sendmail" programs take options, "--" will prevent an email address being interpreted as an option.
```
## Using SMTP
Directly use SMTP server as relay. This option is useful if you don't want to set up MTA on your instance but you have an account at email provider.
```ini
[mailer]
ENABLED = true
FROM = gitea@mydomain.com
MAILER_TYPE = smtp
SMTP_ADDR = mail.mydomain.com
SMTP_PORT = 587
IS_TLS_ENABLED = true
USER = gitea@mydomain.com
PASSWD = `password`
```
Restart Gitea for the configuration changes to take effect.
To send a test email to validate the settings, go to Gitea > Site Administration > Configuration > SMTP Mailer Configuration.
For the full list of options check the [Config Cheat Sheet]({{< relref "doc/administration/config-cheat-sheet.en-us.md" >}})
Please note: authentication is only supported when the SMTP server communication is encrypted with TLS or `HOST=localhost`. TLS encryption can be through:
- STARTTLS (also known as Opportunistic TLS) via port 587. Initial connection is done over cleartext, but then be upgraded over TLS if the server supports it.
- SMTPS connection (SMTP over TLS) via the default port 465. Connection to the server use TLS from the beginning.
- Forced SMTPS connection with `IS_TLS_ENABLED=true`. (These are both known as Implicit TLS.)
This is due to protections imposed by the Go internal libraries against STRIPTLS attacks.
Note that Implicit TLS is recommended by [RFC8314](https://tools.ietf.org/html/rfc8314#section-3) since 2018.
### Gmail
The following configuration should work with GMail's SMTP server:
```ini
[mailer]
ENABLED = true
HOST = smtp.gmail.com:465 ; Remove this line for Gitea >= 1.18.0
SMTP_ADDR = smtp.gmail.com
SMTP_PORT = 465
FROM = example.user@gmail.com
USER = example.user
PASSWD = ***
MAILER_TYPE = smtp
IS_TLS_ENABLED = true
```
Note that you'll need to create and use an [App password](https://support.google.com/accounts/answer/185833?hl=en) by enabling 2FA on your Google
account. You won't be able to use your Google account password directly.