The email blog

How to Send Emails from an AI Agent (Step by Step)

Three ways to send emails from an AI agent using AutoSend: REST API for code-driven agents, MCP for natural language, and the skill for coding agents.

How Email Spam Filters Work (And Why Most Problems Are Reputation, Not Content)

I break down how spam filters actually score your emails, what signals matter most, and why reputation fixes 80% of deliverability problems.

Email Bounce Rate: What's Normal and How to Fix It

If your email bounce rate is above 2%, you have a list quality problem. Here's what causes high bounce rates and how to fix them fast.

How to Build a Marketing Automation Workflow (with examples and templates)

A practical take on marketing automation workflows from someone who builds them. Examples, templates, and lessons from Peerlist and AutoSend.

What Is a Spam Trap? Types, Detection, and How to Fix It

I break down what spam traps are, the three types you'll hit, how to detect them in your list, and how to fix the damage before it kills deliverability.

Stop Tracking Open Rates. Your Deliverability Will Thank You.

Tracking open rates could be sending your emails to spam. Learn why the metric is unreliable and what to measure instead.

Why Gmail Says Your Emails "Appear Suspicious" (And How to Fix It)

Gmail marking your emails as suspicious? Fix DMARC strict alignment with this SPF, DKIM, and DMARC DNS configuration guide.

Why Your Emails Go to Spam: 18 Reasons and How to Fix Each One

Most deliverability problems come down to a small set of fixable mistakes. Let's discuss 18 mistakes, what they are, why they happen, and how to fix each one.

How SPF, DKIM, and DMARC Work Together to Protect Your Domain

Learn how SPF, DKIM, and DMARC protect your domain from spoofing and phishing, improve trust, and boost email deliverability.