Open Source Email Server Setup: The 2026 Infrastructure Guide
The Definitive Guide to Self-Hosted Email Infrastructure in 2026 Why would anyone self-host email in 2026? AWS SES, SendGrid, Mailgun, and Postmark exist. They're cheap, reliable, and require zero maintenance. And yet — serious senders are moving back to self-hosted. Here's why, and how to do it right. The Hidden Cost of Cloud Email Services Cloud SMTP services charge by the email, not by the infrastructure. For transactional email at scale, this adds up fast: Provider Vol...
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