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.
Real developers can help you.
Tejas Chokhawala
Full-stack engineer with 5 years experience building production web apps using React, Next.js and TypeScript.
Focused on performance, clean architecture and shipping fast.
Experienced with Supabase/Postgres backends, Stripe billing, and building AI-assisted developer tools.
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.
ISHANTDEEP SINGH
Senior Software Engineer with 7+ years of experience in React, JavaScript, TypeScript, Next.js, and Node.js. I’ve also worked as a tech lead for startups, owning end-to-end technical execution including architecture, development, scaling, and delivery. I bring a strong mix of hands-on coding, product thinking, and technical leadership, and I’m comfortable building products from scratch as well as improving and scaling existing systems.
Richard McSorley
Full-Stack Software Engineer with 8+ years building high-performance applications for enterprise clients. Shipped production systems at Walmart (4,000+ stores), Cigna (20M+ users), and Arkansas Blue Cross. 5 patents in retail/supply chain tech. Currently focused on AI integrations, automation tools, and TypeScript-first architectures.
Matt Butler
Software Engineer @ AWS
Kingsley Omage
Fullstack software engineer passionate about AI Agents, blockchain, LLMs.
Mehdi Ben Haddou
- Founder of Chessigma (1M+ users) & many small projects
- ex Founding Engineer @Uplane (YC F25)
- ex Software Engineer @Amazon and @Booking.com
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.
legrab
I'll fill this later
Luca Liberati
I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
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.