SMTP Mails don't send and connection fails, but openssl works

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Yeah, I figured, so I ended up adding the docker_args yaml tag to the config file and specifying some dns servers directly.

For anyone wondering(I had to look up where the docker_args tag went), here’s a part of the app.yml file:

*******Omitted lines above*********
## 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

docker_args: "--dns 1.1.1.1 --dns 8.8.4.4 --dns 8.8.8.8"

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"
*******Omitted rest of file below*********