Duply
← Image automation guides

Lifecycle API

Email Image Generation API

Generate campaign and lifecycle email images from subscriber, account, offer, event, or milestone data while keeping layouts controlled.

Quick answer

An email image API should create a stable hosted asset before send time and keep the essential message available as accessible HTML text outside the image.

Best-fit use cases

Lifecycle campaigns
Account summaries
Personalized offers
Event reminders

Implementation

A reliable four-step workflow

1

Choose useful fields

Personalize only values with clear relevance and predictable display lengths.

2

Generate before send

Create and cache the asset before the email platform needs it.

3

Keep HTML meaning

Repeat essential information and calls to action in accessible email markup.

4

Measure carefully

Compare against a control without changing several campaign variables at once.

Concrete example
trigger
A customer reaches a usage milestone
inputs
First name, metric, period, CTA
output
A personalized summary image
destination
Lifecycle email template

Frequently asked questions

Can an image be unique per recipient?

Yes, but generate stable URLs ahead of delivery and monitor volume and privacy.

What if recipients block images?

Use meaningful alt text and keep the essential message in HTML.

Continue the workflow

Automate email images →Personalized image API →Personalization guide →

Build one production-shaped example

Start with one approved template, realistic data, and the exact trigger your team intends to use.

Start free