Building Remails: A European Mail Transfer Agent for Transactional Email Delivery
By
Flundstrom2
An everything bagel for the brain. Substantive, layered, well-seasoned.
Summary
Remails is a European-hosted Mail Transfer Agent (MTA) built to help organizations send transactional emails reliably while reducing dependency on foreign software services. The article details the technical development process, including challenges with email delivery infrastructure, reputation management, and the decision to build a custom solution rather than using existing services. It explains how Remails handles email forwarding through reputable IP addresses, sets proper headers, and provides automatic retry mechanisms. The service is open-source on GitHub but also offers a hosted version at remails.net, targeting organizations concerned about data sovereignty and European hosting requirements.
Key quotes
· 4 pulledAn MTA is a service that helps deliver emails reliably by forwarding emails via IP addresses that have earned a good reputation, ensuring the right email headers are set, and retrying delivery automatically when things go wrong.
Remails is currently mainly meant for transactional emails, not marketing emails.
Increasingly more organizations are reviewing their dependencies on foreign software and IT services from countries like the US.
One broad necessity for many organizations is sending automated emails, such as password resets, order confirmations, and notifications.
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