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diff --git a/doc/incoming_email/README.md b/doc/incoming_email/README.md index 5a9a1582877..db0f03f2c98 100644 --- a/doc/incoming_email/README.md +++ b/doc/incoming_email/README.md @@ -1,302 +1 @@ -# Reply by email - -GitLab can be set up to allow users to comment on issues and merge requests by -replying to notification emails. - -## Requirement - -Reply by email requires an IMAP-enabled email account. GitLab allows you to use -three strategies for this feature: -- using email sub-addressing -- using a dedicated email address -- using a catch-all mailbox - -### Email sub-addressing - -**If your provider or server supports email sub-addressing, we recommend using it.** - -[Sub-addressing](https://en.wikipedia.org/wiki/Email_address#Sub-addressing) is -a feature where any email to `user+some_arbitrary_tag@example.com` will end up -in the mailbox for `user@example.com`, and is supported by providers such as -Gmail, Google Apps, Yahoo! Mail, Outlook.com and iCloud, as well as the Postfix -mail server which you can run on-premises. - -### Dedicated email address - -This solution is really simple to set up: you just have to create an email -address dedicated to receive your users' replies to GitLab notifications. - -### Catch-all mailbox - -A [catch-all mailbox](https://en.wikipedia.org/wiki/Catch-all) for a domain will -"catch all" the emails addressed to the domain that do not exist in the mail -server. - -## How it works? - -### 1. GitLab sends a notification email - -When GitLab sends a notification and Reply by email is enabled, the `Reply-To` -header is set to the address defined in your GitLab configuration, with the -`%{key}` placeholder (if present) replaced by a specific "reply key". In -addition, this "reply key" is also added to the `References` header. - -### 2. You reply to the notification email - -When you reply to the notification email, your email client will: - -- send the email to the `Reply-To` address it got from the notification email -- set the `In-Reply-To` header to the value of the `Message-ID` header from the - notification email -- set the `References` header to the value of the `Message-ID` plus the value of - the notification email's `References` header. - -### 3. GitLab receives your reply to the notification email - -When GitLab receives your reply, it will look for the "reply key" in the -following headers, in this order: - -1. the `To` header -1. the `References` header - -If it finds a reply key, it will be able to leave your reply as a comment on -the entity the notification was about (issue, merge request, commit...). - -For more details about the `Message-ID`, `In-Reply-To`, and `References headers`, -please consult [RFC 5322](https://tools.ietf.org/html/rfc5322#section-3.6.4). - -## Set it up - -If you want to use Gmail / Google Apps with Reply by email, make sure you have -[IMAP access enabled](https://support.google.com/mail/troubleshooter/1668960?hl=en#ts=1665018) -and [allowed less secure apps to access the account](https://support.google.com/accounts/answer/6010255). - -To set up a basic Postfix mail server with IMAP access on Ubuntu, follow -[these instructions](./postfix.md). - -### Omnibus package installations - -1. Find the `incoming_email` section in `/etc/gitlab/gitlab.rb`, enable the - feature and fill in the details for your specific IMAP server and email account: - - ```ruby - # Configuration for Postfix mail server, assumes mailbox incoming@gitlab.example.com - gitlab_rails['incoming_email_enabled'] = true - - # The email address including the `%{key}` placeholder that will be replaced to reference the item being replied to. - # The placeholder can be omitted but if present, it must appear in the "user" part of the address (before the `@`). - gitlab_rails['incoming_email_address'] = "incoming+%{key}@gitlab.example.com" - - # Email account username - # With third party providers, this is usually the full email address. - # With self-hosted email servers, this is usually the user part of the email address. - gitlab_rails['incoming_email_email'] = "incoming" - # Email account password - gitlab_rails['incoming_email_password'] = "[REDACTED]" - - # IMAP server host - gitlab_rails['incoming_email_host'] = "gitlab.example.com" - # IMAP server port - gitlab_rails['incoming_email_port'] = 143 - # Whether the IMAP server uses SSL - gitlab_rails['incoming_email_ssl'] = false - # Whether the IMAP server uses StartTLS - gitlab_rails['incoming_email_start_tls'] = false - - # The mailbox where incoming mail will end up. Usually "inbox". - gitlab_rails['incoming_email_mailbox_name'] = "inbox" - ``` - - ```ruby - # Configuration for Gmail / Google Apps, assumes mailbox gitlab-incoming@gmail.com - gitlab_rails['incoming_email_enabled'] = true - - # The email address including the `%{key}` placeholder that will be replaced to reference the item being replied to. - # The placeholder can be omitted but if present, it must appear in the "user" part of the address (before the `@`). - gitlab_rails['incoming_email_address'] = "gitlab-incoming+%{key}@gmail.com" - - # Email account username - # With third party providers, this is usually the full email address. - # With self-hosted email servers, this is usually the user part of the email address. - gitlab_rails['incoming_email_email'] = "gitlab-incoming@gmail.com" - # Email account password - gitlab_rails['incoming_email_password'] = "[REDACTED]" - - # IMAP server host - gitlab_rails['incoming_email_host'] = "imap.gmail.com" - # IMAP server port - gitlab_rails['incoming_email_port'] = 993 - # Whether the IMAP server uses SSL - gitlab_rails['incoming_email_ssl'] = true - # Whether the IMAP server uses StartTLS - gitlab_rails['incoming_email_start_tls'] = false - - # The mailbox where incoming mail will end up. Usually "inbox". - gitlab_rails['incoming_email_mailbox_name'] = "inbox" - ``` - -1. Reconfigure GitLab and restart mailroom for the changes to take effect: - - ```sh - sudo gitlab-ctl reconfigure - sudo gitlab-ctl restart mailroom - ``` - -1. Verify that everything is configured correctly: - - ```sh - sudo gitlab-rake gitlab:incoming_email:check - ``` - -1. Reply by email should now be working. - -### Installations from source - -1. Go to the GitLab installation directory: - - ```sh - cd /home/git/gitlab - ``` - -1. Find the `incoming_email` section in `config/gitlab.yml`, enable the feature - and fill in the details for your specific IMAP server and email account: - - ```sh - sudo editor config/gitlab.yml - ``` - - ```yaml - # Configuration for Postfix mail server, assumes mailbox incoming@gitlab.example.com - incoming_email: - enabled: true - - # The email address including the `%{key}` placeholder that will be replaced to reference the item being replied to. - # The placeholder can be omitted but if present, it must appear in the "user" part of the address (before the `@`). - address: "incoming+%{key}@gitlab.example.com" - - # Email account username - # With third party providers, this is usually the full email address. - # With self-hosted email servers, this is usually the user part of the email address. - user: "incoming" - # Email account password - password: "[REDACTED]" - - # IMAP server host - host: "gitlab.example.com" - # IMAP server port - port: 143 - # Whether the IMAP server uses SSL - ssl: false - # Whether the IMAP server uses StartTLS - start_tls: false - - # The mailbox where incoming mail will end up. Usually "inbox". - mailbox: "inbox" - ``` - - ```yaml - # Configuration for Gmail / Google Apps, assumes mailbox gitlab-incoming@gmail.com - incoming_email: - enabled: true - - # The email address including the `%{key}` placeholder that will be replaced to reference the item being replied to. - # The placeholder can be omitted but if present, it must appear in the "user" part of the address (before the `@`). - address: "gitlab-incoming+%{key}@gmail.com" - - # Email account username - # With third party providers, this is usually the full email address. - # With self-hosted email servers, this is usually the user part of the email address. - user: "gitlab-incoming@gmail.com" - # Email account password - password: "[REDACTED]" - - # IMAP server host - host: "imap.gmail.com" - # IMAP server port - port: 993 - # Whether the IMAP server uses SSL - ssl: true - # Whether the IMAP server uses StartTLS - start_tls: false - - # The mailbox where incoming mail will end up. Usually "inbox". - mailbox: "inbox" - ``` - -1. Enable `mail_room` in the init script at `/etc/default/gitlab`: - - ```sh - sudo mkdir -p /etc/default - echo 'mail_room_enabled=true' | sudo tee -a /etc/default/gitlab - ``` - -1. Restart GitLab: - - ```sh - sudo service gitlab restart - ``` - -1. Verify that everything is configured correctly: - - ```sh - sudo -u git -H bundle exec rake gitlab:incoming_email:check RAILS_ENV=production - ``` - -1. Reply by email should now be working. - -### Development - -1. Go to the GitLab installation directory. - -1. Find the `incoming_email` section in `config/gitlab.yml`, enable the feature and fill in the details for your specific IMAP server and email account: - - ```yaml - # Configuration for Gmail / Google Apps, assumes mailbox gitlab-incoming@gmail.com - incoming_email: - enabled: true - - # The email address including the `%{key}` placeholder that will be replaced to reference the item being replied to. - # The placeholder can be omitted but if present, it must appear in the "user" part of the address (before the `@`). - address: "gitlab-incoming+%{key}@gmail.com" - - # Email account username - # With third party providers, this is usually the full email address. - # With self-hosted email servers, this is usually the user part of the email address. - user: "gitlab-incoming@gmail.com" - # Email account password - password: "[REDACTED]" - - # IMAP server host - host: "imap.gmail.com" - # IMAP server port - port: 993 - # Whether the IMAP server uses SSL - ssl: true - # Whether the IMAP server uses StartTLS - start_tls: false - - # The mailbox where incoming mail will end up. Usually "inbox". - mailbox: "inbox" - ``` - - As mentioned, the part after `+` is ignored, and this will end up in the mailbox for `gitlab-incoming@gmail.com`. - -1. Uncomment the `mail_room` line in your `Procfile`: - - ```yaml - mail_room: bundle exec mail_room -q -c config/mail_room.yml - ``` - -1. Restart GitLab: - - ```sh - bundle exec foreman start - ``` - -1. Verify that everything is configured correctly: - - ```sh - bundle exec rake gitlab:incoming_email:check RAILS_ENV=development - ``` - -1. Reply by email should now be working. +This document was moved to [administration/reply_by_email](../administration/reply_by_email.md). |