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-rw-r--r--docs/content/doc/advanced/config-cheat-sheet.en-us.md14
-rw-r--r--docs/content/doc/features/comparison.en-us.md2
-rw-r--r--docs/content/doc/features/comparison.zh-cn.md2
-rw-r--r--docs/content/doc/features/comparison.zh-tw.md2
-rw-r--r--docs/content/doc/usage/incoming-email.en-us.md47
5 files changed, 64 insertions, 3 deletions
diff --git a/docs/content/doc/advanced/config-cheat-sheet.en-us.md b/docs/content/doc/advanced/config-cheat-sheet.en-us.md
index def7314720..7dbcad6b40 100644
--- a/docs/content/doc/advanced/config-cheat-sheet.en-us.md
+++ b/docs/content/doc/advanced/config-cheat-sheet.en-us.md
@@ -750,6 +750,20 @@ and
- `SEND_BUFFER_LEN`: **100**: Buffer length of mailing queue. **DEPRECATED** use `LENGTH` in `[queue.mailer]`
- `SEND_AS_PLAIN_TEXT`: **false**: Send mails only in plain text, without HTML alternative.
+## Incoming Email (`email.incoming`)
+
+- `ENABLED`: **false**: Enable handling of incoming emails.
+- `REPLY_TO_ADDRESS`: **\<empty\>**: The email address including the `%{token}` placeholder that will be replaced per user/action. Example: `incoming+%{token}@example.com`. The placeholder must appear in the user part of the address (before the `@`).
+- `HOST`: **\<empty\>**: IMAP server host.
+- `PORT`: **\<empty\>**: IMAP server port.
+- `USERNAME`: **\<empty\>**: Username of the receiving account.
+- `PASSWORD`: **\<empty\>**: Password of the receiving account.
+- `USE_TLS`: **false**: Whether the IMAP server uses TLS.
+- `SKIP_TLS_VERIFY`: **false**: If set to `true`, completely ignores server certificate validation errors. This option is unsafe.
+- `MAILBOX`: **INBOX**: The mailbox name where incoming mail will end up.
+- `DELETE_HANDLED_MESSAGE`: **true**: Whether handled messages should be deleted from the mailbox.
+- `MAXIMUM_MESSAGE_SIZE`: **10485760**: Maximum size of a message to handle. Bigger messages are ignored. Set to 0 to allow every size.
+
## Cache (`cache`)
- `ENABLED`: **true**: Enable the cache.
diff --git a/docs/content/doc/features/comparison.en-us.md b/docs/content/doc/features/comparison.en-us.md
index 9baa6d5123..87b2f43de7 100644
--- a/docs/content/doc/features/comparison.en-us.md
+++ b/docs/content/doc/features/comparison.en-us.md
@@ -106,7 +106,7 @@ _Symbols used in table:_
| Issue search | ✓ | ✘ | ✓ | ✓ | ✓ | ✓ | ✘ |
| Global issue search | [/](https://github.com/go-gitea/gitea/issues/2434) | ✘ | ✓ | ✓ | ✓ | ✓ | ✘ |
| Issue dependency | ✓ | ✘ | ✘ | ✘ | ✘ | ✘ | ✘ |
-| Create issue via email | [✘](https://github.com/go-gitea/gitea/issues/6226) | ✘ | ✘ | ✘ | ✓ | ✓ | ✘ |
+| Create issue via email | [✘](https://github.com/go-gitea/gitea/issues/6226) | ✘ | ✘ | ✓ | ✓ | ✓ | ✘ |
| Service Desk | [✘](https://github.com/go-gitea/gitea/issues/6219) | ✘ | ✘ | ✓ | ✓ | ✘ | ✘ |
## Pull/Merge requests
diff --git a/docs/content/doc/features/comparison.zh-cn.md b/docs/content/doc/features/comparison.zh-cn.md
index aaf8eb4abc..c5bec58cb8 100644
--- a/docs/content/doc/features/comparison.zh-cn.md
+++ b/docs/content/doc/features/comparison.zh-cn.md
@@ -92,7 +92,7 @@ _表格中的符号含义:_
| 工单搜索 | ✓ | ✘ | ✓ | ✓ | ✓ | ✓ | ✘ |
| 工单全局搜索 | [✘](https://github.com/go-gitea/gitea/issues/2434) | ✘ | ✓ | ✓ | ✓ | ✓ | ✘ |
| 工单依赖关系 | ✓ | ✘ | ✘ | ✘ | ✘ | ✘ | ✘ |
-| 通过 Email 创建工单 | [✘](https://github.com/go-gitea/gitea/issues/6226) | [✘](https://github.com/gogs/gogs/issues/2602) | ✘ | ✘ | ✓ | ✓ | ✘ |
+| 通过 Email 创建工单 | [✘](https://github.com/go-gitea/gitea/issues/6226) | [✘](https://github.com/gogs/gogs/issues/2602) | ✘ | ✓ | ✓ | ✓ | ✘ |
| 服务台 | [✘](https://github.com/go-gitea/gitea/issues/6219) | ✘ | ✘ | [✓](https://gitlab.com/groups/gitlab-org/-/epics/3103) | ✓ | ✘ | ✘ |
#### Pull/Merge requests
diff --git a/docs/content/doc/features/comparison.zh-tw.md b/docs/content/doc/features/comparison.zh-tw.md
index 015955f0a8..4da9c74ec8 100644
--- a/docs/content/doc/features/comparison.zh-tw.md
+++ b/docs/content/doc/features/comparison.zh-tw.md
@@ -93,7 +93,7 @@ menu:
| 問題搜尋 | ✓ | ✘ | ✓ | ✓ | ✓ | ✓ | ✘ |
| 全域問題搜尋 | [✘](https://github.com/go-gitea/gitea/issues/2434) | ✘ | ✓ | ✓ | ✓ | ✓ | ✘ |
| 問題相依 | ✓ | ✘ | ✘ | ✘ | ✘ | ✘ | ✘ |
-| 從電子郵件建立問題 | [✘](https://github.com/go-gitea/gitea/issues/6226) | [✘](https://github.com/gogs/gogs/issues/2602) | ✘ | ✘ | ✓ | ✓ | ✘ |
+| 從電子郵件建立問題 | [✘](https://github.com/go-gitea/gitea/issues/6226) | [✘](https://github.com/gogs/gogs/issues/2602) | ✘ | ✓ | ✓ | ✓ | ✘ |
| 服務台 | [✘](https://github.com/go-gitea/gitea/issues/6219) | ✘ | ✘ | [✓](https://gitlab.com/groups/gitlab-org/-/epics/3103) | ✓ | ✘ | ✘ |
## 拉取/合併請求
diff --git a/docs/content/doc/usage/incoming-email.en-us.md b/docs/content/doc/usage/incoming-email.en-us.md
new file mode 100644
index 0000000000..9f1f28e668
--- /dev/null
+++ b/docs/content/doc/usage/incoming-email.en-us.md
@@ -0,0 +1,47 @@
+---
+date: "2022-12-01T00:00:00+00:00"
+title: "Incoming Email"
+slug: "incoming-email"
+draft: false
+toc: false
+menu:
+ sidebar:
+ parent: "usage"
+ name: "Incoming Email"
+ weight: 13
+ identifier: "incoming-email"
+---
+
+# Incoming Email
+
+Gitea supports the execution of several actions through incoming mails. This page describes how to set this up.
+
+**Table of Contents**
+
+{{< toc >}}
+
+## Requirements
+
+Handling incoming email messages requires an IMAP-enabled email account.
+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.
+The receiving email address contains a user/action specific token which tells Gitea which action should be performed.
+This token is expected in the `To` and `Delivered-To` header fields.
+
+Gitea tries to detect automatic responses to skip and the email server should be configured to reduce the incoming noise too (spam, newsletter).
+
+## Configuration
+
+To activate the handling of incoming email messages you have to configure the `email.incoming` section in the configuration file.
+
+The `REPLY_TO_ADDRESS` contains the address an email client will respond to.
+This address needs to contain the `%{token}` placeholder which will be replaced with a token describing the user/action.
+This placeholder must only appear once in the address and must be in the user part of the address (before the `@`).
+
+An example using email sub-addressing may look like this: `incoming+%{token}@example.com`
+
+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`
+
+## Security
+
+Be careful when choosing the domain used for receiving incoming email.
+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`.