SMTP Setup

Use Quolle as an SMTP relay from any framework, CMS, or no-code tool that supports SMTP — no SDK required.

Connection settings

Enter these values wherever your application asks for an SMTP server:

Limits

Nodemailer (Node.js)

Set secure: false with port 587 — Nodemailer negotiates STARTTLS automatically. Port 465 also works with secure: true (implicit SSL/TLS), and 2525 is a STARTTLS fallback if your host blocks 587.

import nodemailer from "nodemailer";

const transporter = nodemailer.createTransport({
  host:   "smtp.quolle.com",
  port:   587,
  secure: false,          // STARTTLS on 587/2525. For port 465 use secure: true (implicit SSL/TLS)
  auth: {
    user: process.env.QUOLLE_API_KEY,   // qle_…
    pass: process.env.QUOLLE_API_KEY,   // same key
  },
});

await transporter.sendMail({
  from:    '"Acme" <hello@mail.yourdomain.com>',
  to:      "customer@example.com",
  subject: "Welcome!",
  html:    "<h1>Welcome to Acme</h1>",
});

Laravel

Add to your .env file:

MAIL_MAILER=smtp
MAIL_HOST=smtp.quolle.com
MAIL_PORT=587
MAIL_USERNAME=qle_your_api_key
MAIL_PASSWORD=qle_your_api_key
MAIL_ENCRYPTION=tls
MAIL_FROM_ADDRESS=hello@mail.yourdomain.com
MAIL_FROM_NAME="${APP_NAME}"

Then send mail as usual:

Mail::to('customer@example.com')->send(new WelcomeMail());

Django

Add to settings.py:

EMAIL_BACKEND       = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST          = 'smtp.quolle.com'
EMAIL_PORT          = 587
EMAIL_USE_TLS       = True    # STARTTLS on port 587
EMAIL_HOST_USER     = 'qle_your_api_key'
EMAIL_HOST_PASSWORD = 'qle_your_api_key'
DEFAULT_FROM_EMAIL  = 'hello@mail.yourdomain.com'

from django.core.mail import send_mail

send_mail(
    subject='Welcome!',
    message='Thanks for signing up.',
    from_email='hello@mail.yourdomain.com',
    recipient_list=['customer@example.com'],
    html_message='<h1>Welcome!</h1>',
)

Ruby on Rails

# config/environments/production.rb
config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
  address:              'smtp.quolle.com',
  port:                 587,
  domain:               'yourdomain.com',
  user_name:            ENV['QUOLLE_API_KEY'],
  password:             ENV['QUOLLE_API_KEY'],
  authentication:       'plain',      # PLAIN is supported
  enable_starttls_auto: true
}

WordPress (WP Mail SMTP)

Install the free WP Mail SMTP plugin, then configure under Settings → WP Mail SMTP → General:

1. Set Mailer to Other SMTP
2. SMTP Host: smtp.quolle.com
3. SMTP Port: 587
4. Encryption: TLS (STARTTLS)
5. Auto TLS: On
6. Authentication: On
7. SMTP Username: your API key (qle_…)
8. SMTP Password: your API key (same value)
9. From Email: your verified address, e.g. noreply@mail.yourdomain.com
10. Save and use Email Test to confirm delivery

Bubble.io

In your Bubble app, go to Settings → Email:

1. Enable Use a custom email provider
2. Email address: your verified sending address
3. Click Configure and enter the SMTP settings from the table above
4. Bubble uses these credentials for all system emails and workflow email actions

FlutterFlow

In FlutterFlow, navigate to Settings → Firebase → Custom SMTP (or your email integration panel) and enter:

• Host: smtp.quolle.com
• Port: 587
• Username: your API key
• Password: your API key (same value)
• From: your verified sender address

Troubleshooting