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Transactional email guides
Authentication, mailbox provider rules, IP reputation and choosing a provider, written for developers who send password resets, receipts and alerts.
- The best transactional email APIs in 2026 (verified prices)An honest, dated price list for twelve transactional email APIs, with dedicated IP and retention terms.Updated
- Why password reset emails go to spam (and how to fix it)The developer's checklist for reset emails that land in spam, arrive late or never arrive.Updated
- Google, Yahoo and Microsoft sender rules for transactional emailWhat Gmail, Yahoo and Outlook.com require of transactional senders, side by side, with a checklist.Updated
- Shared vs dedicated IP for transactional emailWhen a dedicated IP helps, when it hurts, and how it differs from a dedicated mail server.Updated
- SPF, DKIM and DMARC for transactional emailCopy-paste records, alignment explained, dig commands and a rollout plan for transactional senders.Updated
Put your transactional email on solid ground.
Start free on our transactional pool. Move to dedicated IPs or a dedicated server when you need the isolation. Same API either way.