Emitlo Blog
Guides, tutorials, and comparisons on transactional email, deliverability, and email infrastructure for developers.
Best SMTP Relay Services for Developers in 2026
Compare the top 8 SMTP relay services: pricing, free tiers, deliverability, and GDPR compliance.
Read article →Best Free Transactional Email Services in 2026
Up to 12,000 emails/month free. Compare free tiers, daily caps, and hidden limitations.
Read article →Best SendGrid Alternatives in 2026
Cheaper, simpler, more reliable. Top 5 alternatives with migration guide.
Read article →Email Deliverability: The Complete Developer Guide (2026)
IP reputation, domain warm-up, spam filters, feedback loops, and monitoring.
Read article →DKIM, SPF and DMARC: Complete Setup Guide
Step-by-step DNS setup, examples, testing tools, and common mistakes.
Read article →Transactional Email Best Practices: 12 Rules for Inbox Delivery
IP warm-up, clean lists, bounce handling, headers, and more.
Read article →How to Configure Amazon SES for Transactional Email
Sandbox exit, domain verification, DKIM/SPF, quota, and CloudWatch logs.
Read article →How to Send Transactional Emails in Node.js
Complete code examples with Emitlo API, Nodemailer + SMTP, and error handling.
Read article →Best Email API for Developers: Compared & Tested (2026)
Emitlo, Resend, Postmark, Mailgun, SES, SendGrid — DX criteria compared.
Read article →Transactional vs Marketing Email: Key Differences Explained
Definitions, examples, why mixing them is a mistake, and infrastructure separation.
Read article →How to Migrate from SendGrid to Another Email Service
Checklist: domains, API keys, templates, suppressions. Step-by-step guide.
Read article →IP Warm-Up for Email: A Step-by-Step Guide
Why warm-up matters, week-by-week schedule, monitoring, and tools.
Read article →Transactional Email and Data Privacy: What Developers Need to Know
Data collected, retention, right to erasure, and choosing a compliant provider.
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