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closes #13585 fixes #9067 fixes #2386 ref #6226 ref #6219 fixes #745 This PR adds support to process incoming emails to perform actions. Currently I added handling of replies and unsubscribing from issues/pulls. In contrast to #13585 the IMAP IDLE command is used instead of polling which results (in my opinion 😉) in cleaner code. Procedure: - When sending an issue/pull reply email, a token is generated which is present in the Reply-To and References header. - IMAP IDLE waits until a new email arrives - The token tells which action should be performed A possible signature and/or reply gets stripped from the content. I added a new service to the drone pipeline to test the receiving of incoming mails. If we keep this in, we may test our outgoing emails too in future. Co-authored-by: silverwind <me@silverwind.io> Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
48 lines
1.9 KiB
Markdown
48 lines
1.9 KiB
Markdown
---
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date: "2022-12-01T00:00:00+00:00"
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title: "Incoming Email"
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slug: "incoming-email"
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draft: false
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toc: false
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menu:
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sidebar:
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parent: "usage"
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name: "Incoming Email"
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weight: 13
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identifier: "incoming-email"
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---
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# Incoming Email
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Gitea supports the execution of several actions through incoming mails. This page describes how to set this up.
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**Table of Contents**
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{{< toc >}}
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## Requirements
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Handling incoming email messages requires an IMAP-enabled email account.
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The recommended strategy is to use [email sub-addressing](https://en.wikipedia.org/wiki/Email_address#Sub-addressing) but a catch-all mailbox does work too.
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The receiving email address contains a user/action specific token which tells Gitea which action should be performed.
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This token is expected in the `To` and `Delivered-To` header fields.
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Gitea tries to detect automatic responses to skip and the email server should be configured to reduce the incoming noise too (spam, newsletter).
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## Configuration
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To activate the handling of incoming email messages you have to configure the `email.incoming` section in the configuration file.
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The `REPLY_TO_ADDRESS` contains the address an email client will respond to.
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This address needs to contain the `%{token}` placeholder which will be replaced with a token describing the user/action.
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This placeholder must only appear once in the address and must be in the user part of the address (before the `@`).
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An example using email sub-addressing may look like this: `incoming+%{token}@example.com`
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If a catch-all mailbox is used, the placeholder may be used anywhere in the user part of the address: `incoming+%{token}@example.com`, `incoming_%{token}@example.com`, `%{token}@example.com`
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## Security
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Be careful when choosing the domain used for receiving incoming email.
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It's recommended receiving incoming email on a subdomain, such as `incoming.example.com` to prevent potential security problems with other services running on `example.com`.
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