carlosbaraza/smtp2json repository overview

⁠SMTP to JSON Server

This module or docker image will:

1. Spawn a SMTP Server at port 8080
2. Parse the emails received there
3. POST the results to given endpoint

⁠Build docker

Build docker image:

docker build -t carlosbaraza/smtp2json:latest .

⁠Run image

Run image exposing port 8080 as 25 (requires root access) and setting the ENV variable POST_URI to the URI of your service:

sudo docker run -p 25:8080 -e POST_URI='https://yourservice.com/emails' carlosbaraza/smtp2json:latest

⁠Test SMTP server:

1. Create a mockbin: http://mockbin.org/bin/create⁠
2. Start the server: sudo docker run -p 25:8080 -e POST_URI='https://mockbin.org/bin/71c8cf5c-f6fb-4f39-a7e8-b50c8fb7410d' carlosbaraza/smtp2json:latest
3. Use telnet to send a fake email: telnet localhost 25
4. Paste this fake email:

HELO localhost
MAIL FROM: <[email protected]>
RCPT TO: <[email protected]>
DATA
Subject: Test subject
To: Carlos
From: Foo

This is the body for the email.

With multiple paragraphs.

.
QUIT

⁠Publish to Docker Cloud

• Build docker image:

docker build -t carlosbaraza/smtp2json:latest .

• Publish to docker cloud repository:

docker push carlosbaraza/smtp2json:latest

• Create docker cloud service:

privileged: true
export port 8080 as 25 (Default SMTP port)
set env variable POST_URI with the URI to the API endpoint

• Add DNS MX record pointing to Service hostname

SUBDOMAIN.YOURDOMAIN.COM. MX 0 smtp2json-12345678.12345678.svc.dockerapp.io

• Send test email to [email protected]

• Check logs to confirm it worked