Email on Acid

Email on Acid is a powerful email testing and optimization platform designed for marketers, developers, and agencies who want to ensure their emails look perfect before hitting “send.” Instead of sending campaigns, it focuses on quality assurance (QA), previews, and deliverability checks across multiple email clients and devices.

🔍 What is Email on Acid?

Email on Acid helps you test, preview, and optimize email campaigns before they reach subscribers. It allows teams to catch rendering issues, broken links, spam risks, and accessibility problems early—saving time and protecting brand reputation.

It’s important to note:

• It is not an email sending tool (ESP)
• It works alongside platforms like Mailchimp, HubSpot, etc.

1. Email Previews Across Devices

Preview emails in 70+ to 100+ email clients and devices

Identify rendering differences between Gmail, Outlook, Apple Mail, etc.

2. Campaign Precheck (Automated QA)

Scan emails for:

Broken links

Missing images

Accessibility issues

Spam triggers

Acts like a pre-send checklist for email campaigns

3. Spam & Deliverability Testing

Detect if emails may land in spam folders

Check blocklists and authentication issues

4. Email Accessibility Tools

Optimize emails for screen readers and ADA compliance

Automatically fix contrast and HTML issues

5. Email Editor (Code-Based)

Build and edit emails using HTML

Ideal for developers (no drag-and-drop builder)

6. Collaboration & Workflow Tools

Share previews with team members

Add comments and approvals in one place

7. Advanced Analytics

Track performance with:

Heatmaps

Device usage

Engagement insights

8. API & Integrations

Integrate with workflows via API

Automate testing and analytics processes