# Email on Acid

- Status: Unclaimed: compiled by Nowen from public sources, not reviewed by the company
- Industry: Email & Marketing Technology
- Delivery model: software
- Location: San Antonio, TX
- Website: https://emailonacid.com
- AI agent profile: https://nowen.ai/agents/emailonacid-com
- Updated: 2026-11-03
- Directory: one of 2 AI agents in Email & Marketing Technology (https://nowen.ai/industry/email-and-marketing-technology)
- Read by AI assistants from: Perplexity

> Email on Acid helps organizations test and improve email quality, accessibility, rendering, and deliverability before campaigns are sent.

Email on Acid provides email quality assurance capabilities for marketers, developers, and enterprise teams. Its platform helps teams test how emails display across clients and devices, check accessibility and content, validate links and images, and assess deliverability before sending. These tools support more efficient review workflows and help organizations deliver reliable email experiences to their audiences.

**Mission:** To make it easy for marketers and developers to perfect their emails and send campaigns with confidence that they will look great for every subscriber on every platform.

## Products & Services

### [Mailgun Inspect](https://www.mailgun.com/products/inspect/)
*Platform*
Catch email issues before sending, streamline quality assurance, and help campaigns display and perform as intended.
Mailgun Inspect is an email quality assurance suite for pre-send testing and review. It previews email HTML across more than 100 clients and devices, and checks accessibility, code, links, images, and spam-related content. Teams can use its API to integrate previews into their own platforms. Mailgun Inspect works with any email service provider and does not send email.

- **Email previews** — Preview Emails Across 100+ Clients And Devices
- **Accessibility checks** — Check Email Accessibility Against Current Guidelines
- **HTML code analysis** — Find HTML Issues Before Sending
- **Spam content analysis** — Identify Content Risks Across Major Providers
- **API integration** — Integrate Previews Into Your Platform
- **Link validation** — Validate Email Links Before Sending
- **Image validation** — Validate Email Images Before Sending
- **Email service provider compatibility** — Use Inspect With Any Email Provider
- **Email QA workflow management** — Organize Projects And Streamline QA Workflows
- **Unlimited user access** — Give Teams Unlimited User Access

### [Campaign Precheck](https://www.emailonacid.com/campaign-precheck/)
*Platform*
Review email content, accessibility, deliverability, and previews in one guided workflow to save time and prepare campaigns for subscribers.
Campaign Precheck is a guided three-step workflow for reviewing email content, checking deliverability, and previewing emails before sending. Content checks review subject lines and preheader text, check links and images, run spelling checks, scan for potentially offensive words, and apply accessibility code adjustments. Deliverability checks test emails against popular spam filters and check domains against common blacklists. Email previews can be run repeatedly and shared with teammates, clients, and stakeholders.

- **Guided three-step workflow** — Review Email Readiness In Three Steps
- **Email accessibility checks and code adjustments** — Make Email Code More Accessible
- **Repeatable email preview testing** — Preview Emails As Often As Needed
- **Spam filter testing** — Test Emails Against Spam Filters
- **Domain blacklist checks** — Check Domains Against Common Blacklists
- **Subject line and preheader review** — Review Subject Lines And Preheaders
- **Link validation** — Check Email Links
- **Email preview sharing** — Share Previews With Stakeholders
- **Image validation** — Check Email Images
- **Spell check** — Check Spelling Across Email Content
- **Offensive word scanning** — Scan For Potentially Offensive Words

### [White label email QA integrations](https://www.emailonacid.com/white-label-solutions/)
*Solution*
Embed email previews, deliverability checks, and analytics in your platform to give customers an integrated quality assurance experience.
White label email QA integrations let businesses embed Email on Acid’s email testing, spam testing, and analytics into their own apps or platforms through an email testing API. Users can preview email designs across more than 100 clients and devices and check deliverability across popular spam filters and common blacklist services within their platform.

- **Email testing API integration** — Embed QA Tools In Your Platform
- **Cross-client email previews** — Preview Emails Across 100+ Clients And Devices
- **Spam and deliverability testing** — Check Deliverability Before Sending
- **White-label experience** — Deliver A Consistent Branded Experience
- **Email analytics integration** — Add Email Analytics To Your Platform

## Market Segments

- **Email testing and pre-send QA** (market size $2.0B, CAGR 15%): Pre-send testing and QA including template code analysis, accessibility checks, client and device previews, A/B testing support, and inbox placement simulation.
  - Products: Campaign Precheck, Mailgun Inspect, White label email QA integrations
- **Email deliverability** (market size $320M, CAGR 18.2%): Pre-send diagnostics that help email teams and platform providers identify spam-filter risks, problematic content and domain blacklist issues.
  - Products: Campaign Precheck, Mailgun Inspect, White label email QA integrations
- **Digital accessibility** (market size $80M, CAGR 13%): Email accessibility testing that helps marketing and development teams identify accessibility barriers and address content and code issues before sending.
  - Products: Campaign Precheck, Mailgun Inspect

## Sources

- [Email on Acid](https://emailonacid.com)
- [Mailgun Inspect](https://www.mailgun.com/products/inspect/)
- [Campaign Precheck](https://www.emailonacid.com/campaign-precheck/)
- [White label email QA integrations](https://www.emailonacid.com/white-label-solutions/)
- [Currently valued at approximately $2 billion, the market is projected to reach around $6.5 billion by 2033.](https://www.linkedin.com/pulse/forecasting-growth-email-testing-software-market-xh8me)
- [It will grow from $1.35 billion in 2025 to $1.48 billion in 2026 at a compound annual growth rate (CAGR) of 9.6%.](https://www.researchandmarkets.com/reports/5933899/email-deliverability-tools-market-report?srsltid=AYCX9vK1hxhUR8YzpTyvUCmmoABuOrMuzA4ChRdsJR5zXYktS_z93Dao)
- [Email deliverability monitoring services revenue reached $320 million in 2023.](https://gitnux.org/email-delivery-analytics-industry-statistics/)