Email Sending Not Working in Base44 App Workflows
Your Base44 app's email functionality is not working. Automated emails from workflows (like welcome emails, order confirmations, or notification emails) are not being sent, or they're being sent with incorrect content, broken formatting, or missing dynamic data.
Email is often a critical communication channel for apps. Users expect to receive confirmation emails immediately after actions like signing up, placing an order, or submitting a request. Silent email failures create a poor user experience and can cause business issues.
The problem may be selective: emails to some domains (like Gmail) work fine but emails to corporate domains fail, or emails send but dynamic template variables show as blank or literal placeholder text.
Error Messages You Might See
Common Causes
- Email service configuration (SMTP or API key) is incorrect or missing in the production environment
- Dynamic template variables are not being replaced because field names don't match the data source
- The sending domain's email reputation is low, causing deliverability issues with certain providers
- Email rate limits have been exceeded, silently dropping additional emails
- HTML email templates contain invalid markup that email clients render incorrectly
How to Fix It
Check the email service configuration in your Base44 app. If using an external provider (SendGrid, Mailgun, etc.), verify the API key is set for production and test it outside of Base44.
For missing template variables, verify the exact field names used in the template match the data fields available at the point in the workflow where the email is sent.
If emails send but don't arrive, check spam folders and consider configuring SPF and DKIM records for your sending domain. For comprehensive email deliverability troubleshooting, a developer can audit the entire email pipeline.
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BurnHavoc
Been around fixing other peoples code for 20 years.
Milan Surelia
Milan Surelia is a Mobile App Developer with 5+ years of experience crafting scalable, cross-platform apps at 7Span and Meticha. At 7Span, he engineers feature-rich Flutter apps with smooth performance and modern UI. As the Co-Founder of Meticha, he builds open-source tools and developer-focused products that solve real-world problems.
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🎯 Revamped the Vepaar app into Vepaar Store & CRM with a 2x performance boost and smoother UX.
🚀 Launched Compose101 — a Jetpack Compose starter kit to speed up Android development.
🌟 Open source contributions on Github & StackOverflow for Flutter & Dart
🎖️ Worked on improving app performance and user experience with smart solutions.
Milan is always happy to connect, work on new ideas, and explore the latest in technology.
zipking
I am a technologist and product builder dedicated to creating high-impact solutions at the intersection of AI and specialized markets. Currently, I am focused on PropScan (EstateGuard), an AI-driven SaaS platform tailored for the Japanese real estate industry, and exploring the potential of Archify.
As an INFJ-T, I approach development with a "systems-thinking" mindset—balancing technical precision with a deep understanding of user needs. I particularly enjoy the challenge of architecting Vertical AI SaaS and optimizing Small Language Models (SLMs) to solve specific, real-world business problems. Whether I'm in a CTO-level leadership role or hands-on with the code, I thrive on building tools that turn complex data into actionable value.
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I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses.
I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain.
Meïr Ankri
Full-stack developer specializing in React / Next.js / Node.js with 6+ years of experience. I've worked across various sectors including automotive (Reezocar/Société Générale), healthcare (Medical Link SaaS), and e-commerce (Glasman). I build web apps end-to-end, from architecture to production, with a focus on scalability, performance, and code quality. I also mentor junior developers and contribute to technical decisions and code reviews.
hanson1014
Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround.
Rudra Bhikadiya
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AUXLE
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Yovel Cohen
I got a lot of experience in building Long-horizon AI Agents in production, Backend apps that scale to millions of users and frontend knowledge as well.
Jacek Rozanski
Senior PHP/Symfony developer and DevOps engineer with 20+ years of professional experience, running opcode.pl (web development agency, est. 2004).
Day job: I'm the sole backend developer at merketing company where I own and maintain 11 PHP/Symfony microservices on AWS (ECS Fargate, RDS, S3, CloudFront), handle the full CI/CD pipeline (Bitbucket Pipelines, Docker), and manage monitoring with Sentry and CloudWatch. These services handle high request volumes in production every month.
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Based in Poland (CET timezone). Available for async work and calls during EU/US business hours.
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Get HelpFrequently Asked Questions
Why aren't emails sending from my Base44 app?
Check your email service configuration (SMTP or API key) in the production environment. Test the credentials independently to verify they work.
Why are template variables blank in my Base44 emails?
The variable names in your email template must exactly match the field names available at that point in the workflow. Check for typos and ensure the data has loaded before the email step executes.