E-mail server via docker.internal on 127.0.0.1 of host?

tom.tom · January 6, 2025, 6:37pm

Hi there,

I am wondering if I can access a local SMTP/IMAP server on the host that is running the docker container?

Docker provides the docker.internal networking to access the host, will this work when I use this as ERPNext mail server?
Is there a way to test this, initiate an email?

Reason is I use an encrypted email provider and access is only possible via a local bridge, offering SMTP and IMAP.

PS: I assume this is not feasible for helpdesk? For some reasons the helpdesk tool only provides pre-configured mail services?

Thx!
Tom

revant_one · January 7, 2025, 9:38am

I think it is available on Mac and Windows.

On linux you can try 172.17.0.1 to access docker host.

tom.tom · January 7, 2025, 6:09pm

Great, thanks for the input. I will try this out then.

Do you know of an easy way to trigger an email to verify the setup?

revant_one · January 8, 2025, 12:05am

For development try mailpit,

github.com

frappe/frappe_docker/blob/fa8fd9453b35a46badb13c1a4a88f3ca2e8ef8f0/devcontainer-example/docker-compose.yml#L24-L37


      
          # Enable Mailpit if you need to test outgoing mail services
          # See https://mailpit.axllent.org/
          #  mailpit:
          #    image: axllent/mailpit
          #    volumes:
          #      - mailpit-data:/data
          #    ports:
          #      - 8025:8025
          #      - 1025:1025
          #    environment:
          #      MP_MAX_MESSAGES: 5000
          #      MP_DATA_FILE: /data/mailpit.db
          #      MP_SMTP_AUTH_ACCEPT_ANY: 1
          #      MP_SMTP_AUTH_ALLOW_INSECURE: 1