Catch Email Errors Before Your Customers See Them
Real-time module-level error detection built into your email template workflow. Reduce validation time from 40 minutes to 5 minutes.
AlpacaRelay identifies rendering issues, broken modules, and delivery risks instantly—before campaigns send. No credit card required.
The Email Validation Nightmare
Email marketing teams spend 30-40 minutes manually testing each template across Gmail, Outlook, and Apple Mail—only to discover rendering errors or broken modules AFTER sending to customers. Post-send failures cost $2,000-5,000 per incident in lost revenue, damaged brand reputation, and emergency firefighting.
Wasted Hours on Manual Testing
40 minutes per template testing across devices. Multiply by 20 campaigns/month = 133 hours/month per marketer on repetitive, error-prone validation.
Errors Discovered Too Late
Rendering issues and broken modules surface AFTER customers receive emails. By then, brand damage is done and fixing requires emergency developer response.
Developer Bottleneck
Non-technical team members can't diagnose email errors independently. Every issue requires developer handoff, creating delays and blocking campaigns.
No Real-Time Visibility
Error tracking spread across template builder, ESP bounce reports, and developer logs. No single source of truth for email module health status.
Post-Send Discovery Cost
One failed transactional email campaign: lost sales, customer support burden, compliance risk, and team stress from crisis management.
Process Breaks When Scaling
Manual testing doesn't scale. As campaigns grow from 10 to 50 monthly, validation time explodes and email quality suffers from resource constraints.
We've all sent that email 5 minutes too late and discovered the rendering was broken. You've invested in building a great template, but without real-time error detection, you're flying blind until customers tell you something's wrong.

How AlpacaRelay Transforms Email Validation
Catch rendering issues, broken modules, and delivery risks instantly as you build—not after. Average error detection time: 47 seconds from template upload.
✓ 2.1x faster error detection than manual testing; saves 35 minutes per template
Know exactly which module is failing and why. Instead of 'something broke,' see 'promotional banner image won't load on mobile'—with suggestions to fix it.
✓ 87% of non-technical marketers can independently diagnose and fix issues with AlpacaRelay explanations vs. 15% with technical error logs
Test your template's rendering across Gmail, Outlook, Apple Mail, and mobile devices before sending a single email to customers.
✓ Catches 90%+ of rendering errors before send; eliminates 95% of post-send rendering complaints
Get instant Slack, email, or webhook notifications when critical transactional emails encounter delivery problems. Address issues in minutes, not hours.
✓ Reduces detection time for delivery failures from hours to minutes; prevents customer account lockouts and lost orders
See which modules, templates, and integrations are most error-prone. Use data to systematically prevent recurring issues instead of just reacting.
✓ Enables 40% reduction in recurring email errors through pattern-based improvements; converts reactive firefighting into proactive prevention
As you add more templates and campaigns, error checking scales automatically. Validation time stays flat while manual testing time explodes linearly.
✓ Manual testing time increases 40 min/template; AlpacaRelay validation time stays 5 min regardless of campaign volume—saves 15-20 hours/month as teams scale
Three Simple Steps to Email Confidence
Connect Your Template Builder & ESP
Link AlpacaRelay to SendGrid, Mailchimp, Klaviyo, or your custom SMTP. Pre-built integrations handle the setup—no developer involved. Takes 5 minutes.
Build Templates With Real-Time Error Detection
Create or upload email templates. AlpacaRelay continuously scans for rendering issues, broken modules, and delivery risks as you design. Errors appear instantly in the dashboard.
Fix Issues Before Sending
Review module-level diagnostics with plain-language explanations. Fix errors in seconds. Send campaigns with confidence knowing your email quality is verified pre-send.
Teams Preventing Email Disasters Every Day
Hear how AlpacaRelay helps marketers, designers, and founders create better emails together.
“We went from 40 minutes of manual testing per template to 5 minutes of validation with AlpacaRelay. But the real win is we haven't had a single post-send rendering issue since implementing it. Customers are getting perfect emails every time.”
Marcus Chen
Email Marketing Manager, E-commerce Brand (Managing 15+ campaigns/month)
“Our marketers used to come to me constantly when emails failed. Now they debug 80% of issues themselves using AlpacaRelay's error explanations. I've reclaimed 12 hours per week for actual product development instead of email firefighting.”
Sarah Patel
Technical Lead, SaaS Company (Team of 30)
“Compliance requires perfect audit trails on transactional emails. AlpacaRelay not only catches errors before they damage customers but provides us with the documentation regulators demand. Our email delivery confidence went from zero to 99.8% tracked.”
James Rodriguez
Operations Manager, FinTech Company (Managing regulatory notifications)
Real results, real impact
See how teams improve their workflow with AlpacaRelay.
47 seconds
Average time to identify first email error
From template upload to problem detected and displayed
90%
Of template errors caught pre-send
Before any customer receives the email
18.7M+
Errors prevented from reaching customer inboxes
Across all AlpacaRelay users and campaigns
Most template builders provide generic, surface-level error reporting that tells you 'something is wrong.' AlpacaRelay provides real-time, module-level diagnostics that tell you exactly which module failed and why—while you're building, not after. This catches errors during design instead of after you've finished creating the template.
Zero IT involvement required. AlpacaRelay integrations with SendGrid, Mailchimp, and Klaviyo are pre-built. Setup takes 5 minutes from your dashboard—one click to enable. If you need custom webhook configuration, our team handles it in a 15-minute call. 95% of customers are catching errors in real-time within their first campaign after signup.
Manual testing has a hidden cost: 40 minutes per template × 5 templates/month × $35/hour marketer salary = $7,000/month in sunk labor. One failed transactional email campaign costs $2,000-5,000 in lost revenue alone. AlpacaRelay's base plan is $99/month—it pays for itself if it prevents just one major email failure every 2-3 months. Typical payback period: 3-5 weeks.
ESP bounce reports are post-mortem—they tell you emails failed after customers already missed them. AlpacaRelay is preventive—it catches errors before sending. Also, 70% of email problems are rendering/module issues that ESPs never report; 30% are delivery issues. AlpacaRelay focuses on the 70% your ESP can't detect.
AlpacaRelay is purpose-built for marketers, not developers. Error messages are in business language. Instead of 'MJML compilation failed: invalid attribute on mj-text,' you see 'Email headline text won't show on iPhone—increase font size or reduce width.' User testing shows 92% of non-technical marketers can diagnose and fix errors independently.
AlpacaRelay has pre-built integrations with SendGrid, Mailchimp, Klaviyo, and custom SMTP. For other ESPs, we provide webhook and API support so developers can build custom connections. We guarantee backward compatibility—existing integrations won't break if we update. 99.9% integration uptime across all connectors.
We offer a free error audit: upload your recent templates and we'll run AlpacaRelay's diagnostics. You'll see exactly what errors we catch that your current process missed. If we don't find anything significant, no cost and no obligation. Most teams discover 5-15 errors per template they never caught with manual testing.
See What You're Missing in Your Email Templates
Free error audit on your actual templates. No signup, no credit card, no obligation. Takes 5 minutes.
2,400+ teams have already seen their template errors—and fixed them before customers noticed.