Email-safe fonts for your newsletter
February 19, 2026
Most email clients ignore web fonts. Here's why email-safe fonts are the practical choice for newsletters that render consistently everywhere.
Best email verification APIs for newsletter senders (2026)
February 13, 2026
Comparing the best email verification APIs by pricing, accuracy, and features to help newsletter senders protect their sender reputation.
How to warm up your email domain
February 12, 2026
A practical guide to email warmup covering schedules, authentication prerequisites, monitoring thresholds, and common mistakes to avoid with a new domain.
What List-Unsubscribe headers do and why they matter
February 10, 2026
How List-Unsubscribe headers work and why Gmail and Yahoo now require one-click unsubscribe for bulk senders.
How to check your domain reputation (and how to fix it)
February 9, 2026
Learn how to check your email domain reputation for free, interpret what the scores mean, and fix a bad reputation to improve deliverability.
The email deliverability guide to staying out of spam
February 6, 2026
An email deliverability guide covering authentication, sender reputation, list hygiene, and Gmail, Yahoo, and Microsoft requirements.
Introducing Sendfully: Run your newsletter effortlessly
November 9, 2025
Sendfully is a simple, powerful newsletter platform for cost-conscious teams, startup founders, first-time authors, and more.