SMTP Configuration

Set up email functionality for your self-hosted Formbricks instance

By default, Formbricks doesn’t include an SMTP server for sending emails. However, you can easily configure your self-hosted instance to use your own email provider through environment variables.

Why Configure SMTP?

Setting up an SMTP server enables important email functionality in Formbricks, including:

• Email verification for new accounts
• Password reset emails
• Team member invitation emails
• Survey response notifications

Email Configuration Options

Formbricks uses Nodemailer to send emails and supports various SMTP providers like:

• AWS SES
• SendGrid
• Mailgun
• Gmail (for low volume)
• Custom SMTP servers
• Other SMTP providers

Required Environment Variables

To enable email functionality, configure the following environment variables:

# Basic SMTP Configuration
MAIL_FROM=[e-mail]
MAIL_FROM_NAME=Formbricks
SMTP_HOST=smtp.yourprovider.com
SMTP_PORT=587
SMTP_USER=your_username
SMTP_PASSWORD=your_password

Additional optional settings:

# Enable SMTP_SECURE_ENABLED for TLS (port 465)
SMTP_SECURE_ENABLED=0

# If set to 0, the server won't require authentication
SMTP_AUTHENTICATED=1

# If set to 0, the server will accept connections without requiring
# authorization from the list of supplied CAs (default is 1)
SMTP_REJECT_UNAUTHORIZED_TLS=0

Enabling Email Features

By default, email verification and password reset features are disabled in Formbricks. To enable these features:

# Set to 0 to enable email verification (requires working SMTP)
EMAIL_VERIFICATION_DISABLED=0

# Set to 0 to enable password reset functionality (requires working SMTP)
PASSWORD_RESET_DISABLED=0

Configuration for One-Click Setup

If you’re using the one-click setup with Docker Compose, you can either:

1. Edit the docker-compose.yml file and add the SMTP environment variables:

environment:
  # Email Configuration
  MAIL_FROM: [e-mail]
  MAIL_FROM_NAME: Formbricks
  SMTP_HOST: smtp.yourprovider.com
  SMTP_PORT: 587
  SMTP_USER: your_username
  SMTP_PASSWORD: your_password
  EMAIL_VERIFICATION_DISABLED: 0
  PASSWORD_RESET_DISABLED: 0

2. Or during the setup, answer “Yes” when prompted to set up the email service:

📧 Do you want to set up the email service? You will need SMTP credentials for the same! [y/N] y

Provider-Specific Examples

SendGrid

MAIL_FROM=[e-mail]
MAIL_FROM_NAME=Formbricks
SMTP_HOST=smtp.sendgrid.net
SMTP_PORT=587
SMTP_USER=apikey
SMTP_PASSWORD=your_sendgrid_api_key

AWS SES

MAIL_FROM=[e-mail]
MAIL_FROM_NAME=Formbricks
SMTP_HOST=email-smtp.us-east-1.amazonaws.com
SMTP_PORT=587
SMTP_USER=your_ses_access_key
SMTP_PASSWORD=your_ses_secret_key

Gmail

MAIL_FROM=[e-mail]
MAIL_FROM_NAME=Formbricks
SMTP_HOST=smtp.gmail.com
SMTP_PORT=587
SMTP_USER=[e-mail]
SMTP_PASSWORD=your_app_password

Note: For Gmail, you need to use an App Password if you have 2FA enabled.

Troubleshooting

If you’re experiencing issues with your email configuration:

1. Check that all required environment variables are set correctly
2. Verify your SMTP credentials are valid
3. Ensure your email provider allows sending from the specified MAIL_FROM address
4. If using Gmail, ensure you’re using an App Password
5. For secure connections, make sure you’ve set the correct port and SMTP_SECURE_ENABLED value

For additional help, join the conversation on GitHub Discussions.