Advanced Features

Dynamic Variable Interpolation

ExMailer supports f-string style placeholders in your email body or template.

emailer.send_email(
    subject="System Alert",
    body="Node {node_id} reported status: {status}",
    recipients=["admin@company.com"],
    template_vars={"node_id": "SRV-01", "status": "CRITICAL"}
)

Custom Template Engine

You can define high-fidelity HTML templates with CSS and register them for reuse.

Define the Template: Use {body} as the placeholder for the email content.

Register: Use register_custom_template.

Execute: Reference the template by name in send_email.