For this guide, we will focus on a architecture due to its asynchronous efficiency, massive package ecosystem, and ability to run a lightweight SMTP server directly within the application code.

Docker is increasingly popular for temp mail deployments as it allows for easy isolation of components including the web API, mail server, and database. Using Docker-compose, you can orchestrate all these services with minimal configuration overhead.

When deploying a temp mail script to production, consider these best practices:

Solution: The vast majority of temporary email use cases only require receiving verification codes and activation links. 3. Storage Bloat

: Your server's Mail Exchange (MX) record routes the email to your custom MTA script.

GET /api/gen : Generates a new random email address and registers it in the session.

Regularly check your domain’s blacklist status. If you receive complaints from major providers (Gmail, Outlook), they may block all emails from your domain. Consider rotating domains weekly.

2. The Direct SMTP Server Approach (Recommended for Self-Hosting)

Scan incoming emails for malware links or illegal content using services like VirusTotal. You can block or flag suspicious messages.

A cron job or background worker periodically deletes expired inboxes and their messages.

Let users forward a temporary email to their real address for a short time. This bridges the gap between privacy and convenience.

A custom domain is needed to receive emails (e.g., @://yourdomain.com ).

[Sender] ---> [DNS MX Record] ---> [Your Mail Server (MTA)] | v [User UI] <--- [Backend API] <--- [Database Storage]