README.md

Local Testing

This docker-compose setup starts containers for Greenmail (mail server), MinIO (storage), and a Flink cluster. It then configures Flink's SQL client to connect against that cluster.

Make sure you have the following tools installed:

• docker
• docker-compose
• mailutils

Running the following script will build the project, copy the JAR to the correct location, build and run the Docker images and start the SQL client:

./build_and_run.sh

# Or this to only start the client without (re-)building
./run.sh

⚠️ Make sure to run docker-compose down to shut down all containers when you're done.

Connecting

Use the following configuration options to connect using either the IMAP source connector or SMTP sink connector:

• 'host' = 'greenmail'
• 'port' = '3143' (IMAP)
• 'port' = '3025' (SMTP)
• user can be one of jon, jane, alice, or bob.
• password is the same as the username.

Example:

CREATE TABLE inbox (
    uid STRING NOT NULL METADATA,
    subject STRING METADATA,
    content STRING
) WITH (
    'connector' = 'imap',
    'host' = 'greenmail',
    'user' = 'jon',
    'password' = 'jon'
);

Two IMAP catalogs called "jon" and "jane" have also already been created for the respective users, so you can also use the catalog directly:

SELECT * FROM jon.folders.INBOX;

Sending Mails

send-mail.sh is a small convenience script which you can use to send messages on the local Greenmail server.

# Send message from jane@ to jon@
./send-mail.sh -f jane -t jon -s "Subject" -m "Message"