What Is Email Marketing? Complete Definition, Examples & ROI (2026)

What Is Email Marketing? (Complete Definition)

Email marketing is the practice of sending targeted commercial emails to a list of subscribers to promote products, build relationships, and drive revenue.

It is a form of direct digital marketing that uses email to communicate with potential and existing customers. Email marketing encompasses newsletters, promotional campaigns, automated sequences, transactional emails, and behavioral triggers.

Key Characteristics of Email Marketing

How Email Marketing Works

Email marketing works through a 6-step process:

Step 1: Build a Subscriber List

Collect email addresses from people who opt in to receive your emails. Methods include:

• Website signup forms
• Landing pages with lead magnets (free guides, discounts)
• In-store collection (QR codes, signup sheets)
• Social media → email funnel

Step 2: Choose an Email Marketing Platform

Use software to manage your list, create emails, and track results. Popular platforms:

• GetResponse — Best overall (AI writer, landing pages, webinars)
• Mailchimp — Most known (300+ integrations)
• Brevo — Cheapest (unlimited contacts, $25/mo)
• MailerLite — Best free plan (1,000 contacts)

Step 3: Segment Your Audience

Divide subscribers by:

• Demographics (age, location, gender)
• Behavior (purchase history, email engagement)
• Interests (content preferences, product categories)
• Funnel stage (new, active, at-risk, lapsed)

Step 4: Create and Send Emails

Design emails using templates or AI tools. Types of emails:

• Welcome sequence (5 emails over 12 days)
• Weekly newsletters
• Promotional campaigns
• Automated sequences (abandoned cart, re-engagement)

Step 5: Track Performance

Monitor key metrics:

• Open rate: Percentage who open (avg 34.2%)
• Click rate: Percentage who click (avg 1.3%)
• Conversion rate: Percentage who buy (avg 1-5%)
• Revenue per email: $0.11-$5.81 depending on type
• Unsubscribe rate: Should be under 0.5%

Step 6: Optimize

Improve results through:

• A/B testing subject lines (+15-25% opens)
• Personalization (+26% open rate increase)
• Segmentation (14.31% open rate vs 9.14% unsegmented)
• AI optimization (send time, content, subject lines)

5 Types of Email Marketing

1. Newsletter Emails

Regular emails with content, updates, and resources.

• Frequency: Weekly or bi-weekly
• Purpose: Build relationship and provide value
• Revenue per email: $0.11
• Example: "Weekly marketing tips + industry news"

2. Promotional Emails

Emails promoting products, sales, or offers.

• Frequency: 2-4 per month
• Purpose: Drive direct sales
• Revenue per email: $0.36
• Example: "48-hour flash sale: 30% off everything"

3. Automated Sequences

Pre-written email series triggered by subscriber behavior.

• Types: Welcome, abandoned cart, re-engagement, post-purchase
• Revenue per email: $5.81 (abandoned cart — 24x more than newsletters)
• Example: 5-email welcome sequence sent automatically when someone joins

4. Transactional Emails

Automated emails triggered by a transaction or action.

• Types: Order confirmations, receipts, password resets, shipping updates
• Open rate: 80-90% (highest of any email type)
• Example: "Your order has shipped! Tracking: 1Z999..."

5. Behavioral Emails

Triggered by specific user actions on your website or app.

• Types: Browse abandonment, product views, cart additions
• Revenue per email: $0.72
• Example: "You looked at [Product] — here is 5% off"

Email Marketing ROI in 2026

ROI by Industry

Email Marketing Examples

Welcome Sequence Example

1. Day 0: "Welcome! Here is 15% off your first order"
2. Day 2: "Our best-sellers you will love"
3. Day 5: "How [Brand] started — our story"
4. Day 8: "Customer favorites: what people are buying"
5. Day 12: "Questions? We are here to help"

Abandoned Cart Example

1. 1 hour after: "You left something behind" (product image, no discount)
2. 24 hours after: "Still thinking? Here is what others say" (reviews)
3. 48 hours after: "Last chance: 10% off your cart" (discount code)

Newsletter Example

• Monthly tip or article
• Featured product or resource
• Customer spotlight or testimonial
• Upcoming events or promotions
• CTA: "Shop now" or "Read more"

How to Get Started with Email Marketing

1. Choose a Platform

GetResponse is the best platform for beginners:

• Free plan (500 contacts with AI tools)
• AI email writer (generates emails in seconds)
• 200+ landing page templates
• Visual automation builder

Try GetResponse Free →

2. Build Your List

• Create a landing page with a free resource
• Add signup forms to your website
• Promote your email list on social media

3. Create a Welcome Sequence

Use our Email Sequence Generator to create a 5-email welcome sequence in minutes.

4. Send Your First Campaign

• Use AI to write your email
• Choose a template
• Schedule or send immediately
• Track opens, clicks, and conversions

5. Automate and Optimize

• Set up abandoned cart automation
• Segment your audience
• A/B test subject lines
• Monitor and improve performance

Why Email Marketing Beats Every Other Channel

Bottom line: Email marketing is the highest-ROI marketing channel in 2026, generating $42 for every $1 spent. It is the only channel where you own your audience. Get started with GetResponse free and use our Email Sequence Generator to create your first campaign.