Mailbird
Tagline: Your own email service. Unlimited emails. Unlimited domains.
Stop paying per email. Mailbird turns a VPS you already have into your own ESP — DKIM, SPF, DMARC, and TLS configured automatically. Send from unlimited domains, scale to unlimited volume, pay $5/server/month flat. Same price at 1,000 emails as 100,000. Your infrastructure, your IP reputation, your data. Free for 14 days.
