Getting Started with CloudMails SMTP

Step 1: Get Your Credentials

After signing up, you'll receive:

SMTP Host: smtp.cloudmails.eu
Port: 587 (TLS) or 465 (SSL)
Username: Your API key from dashboard
Password: Your secret key

Find Your Credentials

Log into your CloudMails dashboard at cloudmails.eu/dashboard. Your SMTP credentials are under Settings → API Keys.

Step 2: Configure Your Application

PHP Example

$transport = (new Swift_SmtpTransport('smtp.cloudmails.eu', 587))
  ->setUsername('your_api_key')
  ->setPassword('your_secret_key')
  ->setEncryption('tls');

$mailer = new Swift_Mailer($transport);

$message = (new Swift_Message('Test Email'))
  ->setFrom(['noreply@yourdomain.com' => 'Your Name'])
  ->setTo(['recipient@example.com'])
  ->setBody('Hello, this is a test email!');

$result = $mailer->send($message);

Python Example

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart

msg = MIMEMultipart()
msg['From'] = 'noreply@yourdomain.com'
msg['To'] = 'recipient@example.com'
msg['Subject'] = 'Test Email'

msg.attach(MIMEText('Hello, this is a test!', 'plain'))

with smtplib.SMTP('smtp.cloudmails.eu', 587) as server:
    server.starttls()
    server.login('your_api_key', 'your_secret_key')
    server.send_message(msg)

Node.js Example

const nodemailer = require('nodemailer');

const transporter = nodemailer.createTransport({
  host: 'smtp.cloudmails.eu',
  port: 587,
  secure: false,
  auth: {
    user: 'your_api_key',
    pass: 'your_secret_key'
  }
});

await transporter.sendMail({
  from: 'noreply@yourdomain.com',
  to: 'recipient@example.com',
  subject: 'Test Email',
  text: 'Hello, this is a test!'
});

Step 3: Verify Authentication

Before sending at volume, verify your DNS authentication is working:

# Check SPF record
nslookup -type=TXT yourdomain.com

# Should return something like:
# v=spf1 include:_spf.cloudmails.eu ~all

# Check DKIM
nslookup -type=TXT cloudmails._domainkey.yourdomain.com

# Check DMARC
nslookup -type=TXT _dmarc.yourdomain.com

✓ All Records Verified

If all three DNS records are present and correct, your authentication is configured properly. You can now send emails.

Step 4: Send Your First Email

⚠️ Start Small

New IPs need warmup. Start by sending to a few addresses you control. Check that emails arrive in inbox (not spam). Then gradually increase volume.

# Test with swaks (Swiss Army Knife for SMTP)
swaks --to test@gmail.com \
      --from noreply@yourdomain.com \
      --server smtp.cloudmails.eu:587 \
      --auth-user your_api_key \
      --auth-password your_secret_key

Check your inbox at test@gmail.com. If the email arrives in inbox, you're ready to send at scale.

Next Steps

Review IP Warmup Guide - Learn how to warmup new IPs at /ip-warmup.php
Set Up Rotation - Configure SMTP rotation at /smtp-rotation.php
API Documentation - Full REST API reference at /smtp-api.php
Monitor Deliverability - Track metrics at /email-deliverability.php

Quick Start Guide