Can't send mail by smtp server(mailjet)

[whitewaterdeu (王白水)]

Hello! I met a question about sending mail , Any help is appreciated

i am using mailjet for smtp server , i have set app.yml reference the topic(Howto use Mailjet as a free SMTP service for Discourse) and i have validate my domain and mail address in mailjet. I have open port 80\443\578\553

but when i send a test mail, nothing happened

this is my app.yml

## 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"
  - "templates/web.china.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
  - "553:553"
  - "587:587"
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: "128MB"

  ## 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: 2

  ## TODO: The domain name this Discourse instance will respond to
  ## Required. Discourse will not work with a bare IP number.
  DISCOURSE_HOSTNAME: discuss.whitewater.wang

  ## 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: 'whitewatercn@outlook.com'

  ## 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: in-v3.mailjet.com
  DISCOURSE_SMTP_PORT: 587
  DISCOURSE_SMTP_USER_NAME: 7b14af9b5034******
  DISCOURSE_SMTP_PASSWORD: "46764f565******"
  #DISCOURSE_SMTP_ENABLE_START_TLS: true           # (optional, default true)
  # DISCOURSE_SMTP_DOMAIN: beginner.center
  # DISCOURSE_NOTIFICATION_EMAIL: noreply@discuss.whitewater.wang
  # DISCOURSE_SMTP_AUTHENTICATION: login
  DISCOURSE_SMTP_OPENSSL_VERIFY_MODE: none
  # DISCOURSE_SMTP_ENABLE_START_TLS: true


  ## If you added the Lets Encrypt template, uncomment below to get a free SSL certificate
  LETSENCRYPT_ACCOUNT_EMAIL: me@example.com

  ## 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

## 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='noreply@discuss.whitewater.wang'"
  - exec: echo "End of custom commands"

[whitewaterdeu (王白水)]

@Lhc_fl 大佬能帮忙看看吗？

[Lhc_fl (Linca)]

这大概说明问题不是出在discourse上，而是出在mailjet上

This probably shows that the problem is not on the discourse, but on the mailjet.

考虑 ./launcher enter app 进入你的docker容器，然后 rake email:test[whitewatercn@outlook.com] 测试一下电子邮件可用性。

Consider ./launcher enter app to enter your docker container, then rake email:test[example@outlook.com] to test email availability.

[whitewaterdeu (王白水)]

谢谢大佬回复！试了测试命令，提示超时

root@iZ0jlfiypegsmh5fpig7t4Z-app:/var/www/discourse# rake emails:test[whitewatercn@outlook.com]
Testing sending to whitewatercn@outlook.com using in-v3.mailjet.com:587, username:7b14af9b5034dd6e7639d19587cb7831 with plain auth.
SMTP server connection successful.
Sending to whitewatercn@outlook.com. . . 
Sending mail failed.
JavaScript was terminated (either by timeout or explicitly)

[whitewaterdeu (王白水)]

现在可以发送了，但是并没有收到邮件

root@iZ0jlfiypegsmh5fpig7t4Z-app:/var/www/discourse# rake emails:test[whitewatercn@outlook.com]
Testing sending to whitewatercn@outlook.com using in-v3.mailjet.com:587, username:7b14af9b5034dd6e7639d19587cb7831 with plain auth.
SMTP server connection successful.
Sending to whitewatercn@outlook.com. . . 
Mail accepted by SMTP server.
Message-ID: fc301347-746b-4b89-8c07-deeb1ee467a4@discuss.whitewater.wang

If you do not receive the message, check your SPAM folder
or test again using a service like http://www.mail-tester.com/.

If the message is not delivered it is not a problem with Discourse.
Check the SMTP server logs for the above Message ID to see why it
failed to deliver the message.

[whitewaterdeu (王白水)]

换成mailgun，可以用了

changed to malign server , now available