アプリの app.yml ファイルのチェックと変更を行っています。事前にログをクリアしました。メール送信を試して、結果を報告します。
編集
ログをクリアして、Gmail または自分のドメインにメールを送信したところ、エラーは表示されませんでした。Gmail ではメールを受信しましたが、自分のドメインでは受信できませんでした。
MailGun のログには、基本的に次のように表示されます。
{
"recipient": "me@mydomain",
"id": "SCBCSJxDSqupdU9Da29rRw",
"envelope": {
"sender": "postmaster@mg.mydomain",
"targets": "me@mydomain",
"transport": "smtp",
"sending-ip": "192.168.0.1"
},
"timestamp": 1697462206.8430145,
"user-variables": {},
"message": {
"headers": {
"from": "Discourse Test Forum <postmaster@mg.mydomain>",
"message-id": "9d3b190d-bcbd-4378-8eb6-fc90cd57fe35@discourse.mydomain",
"to": "me@mydomain",
"subject": "[Discourse Test Forum] Email Deliverability Test"
},
"attachments": [],
"size": 4546
},
"storage": {
"region": "us-west1",
"key": "BAABAQUOTl3y4PtvsqlN5Z2OvaxXslLlZA",
"env": "production",
"url": "https://storage-us-west1.api.mailgun.net/v3/domains/mg.mydomain/messages/BAABAQUOTl3y4PtvsqlN5Z2OvaxXslLlZA"
},
"reason": "generic",
"delivery-status": {
"enhanced-code": "",
"mx-host": "mydomain",
"description": "",
"certificate-verified": true,
"attempt-no": 1,
"code": 550,
"message": "Verification failed for <bounce+674b6a.be6180c-me=mydomain@mg.mydomain>\nThe mail server does not recognize bounce+674b6a.be6180c-me=mydomain@mg.mydomain as a valid sender.\nSender verify failed",
"session-seconds": 40.878,
"tls": true
},
"campaigns": [],
"severity": "permanent",
"tags": [],
"recipient-domain": "mydomain",
"flags": {
"is-routed": false,
"is-authenticated": true,
"is-test-mode": false,
"is-system-test": false
},
"log-level": "error",
"event": "failed"
}
自分のドメインで試した場合にのみ、このメッセージが表示されます。他のドメイン（無料メールかどうかにかかわらず）で試しても問題ありません。
app.yml の現在の設定は次のとおりです。
## this is the all-in-one, standalone Discourse Docker container template
##
## After making changes to this file, you MUST rebuild
## /var/discourse/launcher rebuild app
##
## BE *VERY* CAREFUL WHEN EDITING!
## YAML FILES ARE SUPER SUPER SENSITIVE TO MISTAKES IN WHITESPACE OR ALIGNMENT!
## visit http://www.yamllint.com/ to validate this file as needed
templates:
- "templates/postgres.template.yml"
- "templates/redis.template.yml"
- "templates/web.template.yml"
## Uncomment the next line to enable the IPv6 listener
#- "templates/web.ipv6.template.yml"
- "templates/web.ratelimited.template.yml"
## Uncomment these two lines if you wish to add Lets Encrypt (https)
- "templates/web.ssl.template.yml"
- "templates/web.letsencrypt.ssl.template.yml"
## which TCP/IP ports should this container expose?
## If you want Discourse to share a port with another webserver like Apache or nginx,
## see https://meta.discourse.org/t/17247 for details
expose:
- "80:80" # http
- "443:443" # https
params:
db_default_text_search_config: "pg_catalog.english"
## Set db_shared_buffers to a max of 25% of the total memory.
## will be set automatically by bootstrap based on detected RAM, or you can override
db_shared_buffers: "2048MB"
## can improve sorting performance, but adds memory usage per-connection
#db_work_mem: "40MB"
## Which Git revision should this container use? (default: tests-passed)
#version: tests-passed
env:
LC_ALL: en_US.UTF-8
LANG: en_US.UTF-8
LANGUAGE: en_US.UTF-8
# DISCOURSE_DEFAULT_LOCALE: en
## How many concurrent web requests are supported? Depends on memory and CPU cores.
## will be set automatically by bootstrap based on detected CPUs, or you can override
UNICORN_WORKERS: 8
## TODO: The domain name this Discourse instance will respond to
## Required. Discourse will not work with a bare IP number.
DISCOURSE_HOSTNAME: mydomain
## Uncomment if you want the container to be started with the same
## hostname (-h option) as specified above (default "$hostname-$config")
#DOCKER_USE_HOSTNAME: true
## TODO: List of comma delimited emails that will be made admin and developer
## on initial signup example 'user1@example.com,user2@example.com'
DISCOURSE_DEVELOPER_EMAILS: 'me@mydomain'
## TODO: The SMTP mail server used to validate new accounts and send notifications
# SMTP ADDRESS, username, and password are required
# WARNING the char '#' in SMTP password can cause problems!
DISCOURSE_SMTP_ADDRESS: smtp.mailgun.org
DISCOURSE_SMTP_PORT: 587
DISCOURSE_SMTP_USER_NAME: postmaster@mg.mydomain
DISCOURSE_SMTP_PASSWORD: "mailgunpassword"
#DISCOURSE_SMTP_ENABLE_START_TLS: true # (optional, default true)
#DISCOURSE_SMTP_FORCE_TLS: true
DISCOURSE_SMTP_DOMAIN: mydomain
DISCOURSE_NOTIFICATION_EMAIL: postmaster@mg.mydomain
## If you added the Lets Encrypt template, uncomment below to get a free SSL certificate
LETSENCRYPT_ACCOUNT_EMAIL: freemailaccount
## The http or https CDN address for this Discourse instance (configured to pull)
## see https://meta.discourse.org/t/14857 for details
#DISCOURSE_CDN_URL: https://discourse-cdn.example.com
## The maxmind geolocation IP address key for IP address lookup
## see https://meta.discourse.org/t/-/137387/23 for details
#DISCOURSE_MAXMIND_LICENSE_KEY: 1234567890123456
## The Docker container is stateless; all data is stored in /shared
volumes:
- volume:
host: /var/discourse/shared/standalone
guest: /shared
- volume:
host: /var/discourse/shared/standalone/log/var-log
guest: /var/log
## Plugins go here
## see https://meta.discourse.org/t/19157 for details
hooks:
after_code:
- exec:
cd: $home/plugins
cmd:
- git clone https://github.com/discourse/docker_manager.git
- git clone https://github.com/discourse/discourse-spoiler-alert.git
- git clone https://github.com/discourse/discourse-solved.git
- git clone https://github.com/discourse/discourse-docs.git
## Any custom commands to run after building
run:
- exec: echo "Beginning of custom commands"
## If you want to set the 'From' email address for your first registration, uncomment and change:
## After getting the first signup email, re-comment the line. It only needs to run once.
#- exec: rails r "SiteSetting.notification_email='info@unconfigured.discourse.org'"
- exec: echo "End of custom commands"
このファイルに加えられた変更は次のとおりです。
DISCOURSE_SMTP_ADDRESS: smtp.mydomain
DISCOURSE_SMTP_PORT: 587
DISCOURSE_SMTP_USER_NAME: email@mydomain
DISCOURSE_SMTP_PASSWORD: "mydomainmailpassword"
#DISCOURSE_SMTP_ENABLE_START_TLS: true # (optional, default true)
#DISCOURSE_SMTP_FORCE_TLS: true
DISCOURSE_SMTP_DOMAIN: mydomain
DISCOURSE_NOTIFICATION_EMAIL: email@mydomain
誰かからの返信を受け取ったら、これらの変更を加えてログを確認します。あるいは、自分で変更を加えてログを投稿し、返信を待つこともできます。それほど時間はかからないはずです。様子を見ます。
Discourse の問題ではないようです。メールは Discourse から正常に送信されましたが、Mailgun がそのメールアドレスに配信できませんでした。
