deliverability
10 articles
Mailjet vs SendGrid: Which Email API Wins in 2026?
Mailjet vs SendGrid compared for 2026: pricing, deliverability, marketing features, and Mailjet's restructured plans. See which email service fits your stack.
DMARC's New Rulebook: What RFC 9989 Changes for Senders
The IETF replaced RFC 7489 with RFC 9989, 9990 and 9991 in May 2026. Here is what actually changed in DMARC, what didn't, and the records you should fix.
SPF, DKIM, and DMARC: The 2026 Email Authentication Setup Guide
Set up SPF, DKIM, and DMARC the right way for the 2026 bulk sender rules from Gmail, Yahoo, and Microsoft. A step-by-step guide with the exact DNS records.
Postmark vs SendGrid: Which Transactional Email API in 2026?
Postmark vs SendGrid compared for 2026: pricing, deliverability, API design, and the Twilio merge. See which transactional email service fits your app.
Email Tracking Pixels and EU Regulators: The 2026 Rules Explained
France's CNIL and Italy's Garante issued binding 2026 rules on email tracking pixels. Here's what consent, opt-outs, and deadlines mean for senders.
Postmark's KumoMTA Migration: Faster Queue Times and What They Mean for Your Stack
Postmark migrated its sending engine to KumoMTA in 2026. Here's what changed under the hood, what the queue-time numbers mean, and how Postmark now stacks up.
Gmail AI Inbox: How It Affects Your Email Marketing
Gmail's Gemini AI now summarizes and prioritizes emails before subscribers see them. Open rates are unreliable — here's how to fix your strategy.
How to Clean Your Email List (And Why It Matters)
A step-by-step guide to removing bad addresses, re-engaging inactive subscribers, and protecting your sender reputation before it costs you.
Best Transactional Email Services (Tested and Compared)
Compare the best transactional email services for developers. API design, deliverability, templates, webhooks, and pricing tested and compared.
Email Deliverability: What It Is & How to Improve It
Understand what affects email deliverability and learn proven strategies to reach the inbox. Covers authentication, list hygiene, content, and the best tools.