Email, done right
Practical guides on deliverability, warmup, authentication, and sending at scale.
How to Reduce Your Email Bounce Rate
A high bounce rate wrecks sender reputation. Learn what causes hard and soft bounces and seven proven ways to keep your bounce rate low.
Read articleTransactional vs. Marketing Email: What's the Difference?
Transactional email is triggered one-to-one by a user action; marketing email goes to lists and needs consent. Here is how they differ and why it matters.
Fundamentals2026-01-245 min readSPF, DKIM, and DMARC Explained for Email Senders
SPF, DKIM, and DMARC are the three DNS records that prove your email is authentic. Here is what each does and how to set them up correctly.
Authentication2026-01-187 min readHow to Warm Up a Dedicated IP Address (Step-by-Step, 2026)
IP warmup means gradually increasing sending volume on a new IP so mailbox providers build trust. Learn the schedule, pitfalls, and how to automate it.
Deliverability2026-01-126 min readWhat Is an Email Service Provider (ESP)? A 2026 Guide
An ESP is a platform that sends email at scale via API or dashboard, handling deliverability, authentication, and analytics. Here is how ESPs work and how to choose one.
Fundamentals