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Cannot send emails on a IPv6-only host #2692

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olegbliaher opened this issue Oct 28, 2024 · 1 comment
Open
2 of 21 tasks

Cannot send emails on a IPv6-only host #2692

olegbliaher opened this issue Oct 28, 2024 · 1 comment

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@olegbliaher
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olegbliaher commented Oct 28, 2024

🐛 Bug Report

🔬 How To Reproduce

Steps to reproduce the behavior:

  1. Start console
  2. TestMailer.send_test_email("[email protected]").deliver_now

Code sample

--> Configured FROM: address: '[email protected]'
--> Default port is 25 but will only be used if smtp_address is set.

The settings.yml mail configuration is:

raise_delivery_errors: true
smtp_port: 25
smtp_enable_starttls_auto: true
smtp_open_timeout: 10
smtp_read_timeout: 10
mailer_sender: [email protected]
smtp_starttls: true
smtp_password: [HIDDEN]
smtp_openssl_verify_mode: none
smtp_user_name: username
smtp_address: smtp.server.com

The Mail subsystem SMTP configuration is:

address: smtp.server.com
port: 25
open_timeout: 10
read_timeout: 10
user_name: user
password: [HIDDEN]
openssl_verify_mode: none
enable_starttls_auto: true

Environment

Where are you running/using Password Pusher?

  • pwpush.com
  • Docker Image
    • pwpush
    • Custom image
  • Heroku
  • Digital Ocean
    • App Platform
    • Kubernetes Service
  • Microsoft Azure
    • App Service
    • Container Instances (ACI)
    • Kubernetes Service (AKS)
  • Google Cloud
    • App Engine
    • Cloud Run
    • Kubernetes Engine
  • AWS
    • Elastic Container Service (ECS)
    • Kubernetes Service (AKS)
  • Source Code
  • Other (please specify)

If applicable, what version of Password Pusher?

1.47.3

Screenshots

The error:

/opt/PasswordPusher/vendor/bundle/ruby/3.3.0/gems/irb-1.14.1/lib/irb.rb:1260:in `full_message': Network unreachable (Errno::ENETUNREACH)

📈 Expected behavior

I expect an email to be sent :)

📎 Additional context

Since IPv6 is always a bit tricky, I had to define a subnet explicitly in my docker-compose.yml file:

networks:
  default:
    enable_ipv6: true
    ipam:
      config:
        - subnet: fd40:3457:518e:725b::/64

If I set the subnet to 2001:db8::/64 (the prefix reserved for documentation), it works. I would also like to point out that networking works, I just have reason to believe that the application prioritizes IPv4, which doesn't work on that host+container.

I tried to define the SMTP server by IP address only, but that doesn't work.

@pglombardo
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Owner

Hi @olegbliaher - that's an interesting report. Admittedly I've never tried ipv6 only (yet). Thanks for the compose config. I'll try to test this locally soon. Thanks for reporting!

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