What Is Email Automation? Types & Benchmarks

What is email automation and when should you use it?

Quick Answer: Email automation is the practice of sending targeted emails automatically based on predefined triggers, schedules, or customer behavior. Users should use it when organizations have recurring communication patterns, want to respond to customer actions in real time, or need to nurture leads at scale. Popular tools include Mailchimp (free for 500 contacts) and ActiveCampaign (from $29/month).

What Is Email Automation?

Email automation is the practice of sending targeted, time-sensitive emails to subscribers automatically based on predefined triggers, schedules, or customer behavior. Instead of manually composing and sending each message, email automation platforms send the right email to the right person at the right time without human intervention.

How Email Automation Works

Email automation operates on the same trigger-action model as workflow automation, but specifically focused on email communication:

A trigger occurs — a user signs up, makes a purchase, abandons a cart, or reaches a milestone
The automation platform evaluates conditions — is the customer a VIP? Is it their first purchase? What segment are they in?
An email (or sequence of emails) is sent — personalized based on the subscriber's data, behavior, and segment

Types of Email Automation

Welcome Series

Triggered when someone subscribes. Typically 3-5 emails introducing your brand, delivering promised content, and guiding the subscriber toward a first purchase or engagement.

Abandoned Cart Emails

Triggered when a customer adds items to their cart but does not complete checkout. Usually sent 1-24 hours after abandonment, often including the specific items left behind and a discount incentive.

Post-Purchase Sequences

Triggered after a purchase. Includes order confirmation, shipping updates, product tips, review requests, and cross-sell recommendations.

Re-Engagement Campaigns

Triggered when a subscriber has not opened or clicked emails in a defined period (e.g., 90 days). Designed to win back inactive subscribers or clean your list.

Drip Campaigns

Time-based sequences that deliver content over days or weeks. Used for onboarding, education, nurturing leads, or delivering a course.

Transactional Emails

Triggered by specific actions: password resets, receipt confirmations, account notifications. These have the highest open rates (80%+) of any email type.

When Should You Use Email Automation?

Email automation makes sense when:

Organizations have recurring communication that follows a predictable pattern
Organizations want to respond to customer behavior in real time (e.g., abandoned carts)
Organizations need to nurture leads through a multi-step journey
Organizations want to scale personalization beyond what manual sending allows
Organizations need to maintain consistent touchpoints without increasing headcount

Email Automation Benchmarks

Metric	Manual Emails	Automated Emails
Open rate	15-25%	30-50%
Click-through rate	2-5%	5-15%
Revenue per email	Lower	3-5x higher
Time to send	Minutes per email	Zero (automated)

Popular Email Automation Tools

Tool	Best For	Starting Price
Mailchimp	Beginners, small businesses	Free (500 contacts)
ActiveCampaign	Advanced automation and CRM	$29/month
Zapier + email tool	Connecting email with other apps	Free tier available
Make + email tool	Complex multi-step email workflows	Free tier available

Getting Started

Choose an email platform that matches the budget and complexity needs
Start with a welcome series — it is the highest-impact automation for most businesses
Set up abandoned cart emails if you run an ecommerce store
Build gradually — add post-purchase and re-engagement sequences over time
Measure and optimize — track open rates, click rates, and revenue per email