turboSMTP
Professional SMTP relay service for reliable email delivery
About turboSMTP
turboSMTP is a professional SMTP email delivery service that enables businesses to send large volumes of transactional and marketing emails with high deliverability. It offers real-time analytics, email authentication (SPF, DKIM, DMARC), and integrates via standard SMTP or REST API with event webhooks.
Pros & Cons
Pros
- High deliverability rates with emails consistently reaching inboxes
- Easy setup with good documentation for multiple programming languages
- Free tier available with 6,000 emails per month for testing
- 24/7 support via phone, chat, and email
- Flexible pricing with both subscription and pay-as-you-go options
- Multi-domain support for managing multiple brands
Cons
- Basic plan limited to one custom tracking domain
- Some reports of accounts being closed unexpectedly
- 100,000 email limit on Basic plan can be restrictive for growing businesses
- Interface could be more modern compared to newer competitors
Key Features
SMTP Relay
Dedicated SMTP relay for sending high-volume transactional and marketing emails without using your own mail servers
Real-Time Analytics
Track opens, clicks, bounces, and deliveries in real time with a detailed dashboard
Email Authentication
Full support for SPF, DKIM, and DMARC authentication protocols with TLS encryption
REST API & Webhooks
Programmatic SMTP API and event webhooks for real-time notifications on deliveries, opens, clicks, and bounces
Email Marketing Tool
Built-in tool to design, send, and track professional email campaigns directly from the dashboard
Dedicated IP Addresses
PRO plans include dedicated IPs for better sender reputation and deliverability
Multi-Domain Support
Manage multiple sending domains for operating several projects and brands from one account
Email Validation
Built-in email validation credits to clean lists and reduce bounces
Pricing
- 6,000 emails/month (200/day)
- SMTP relay
- Basic analytics
- API access
- Email validation credits
- Up to 15,000 emails/month
- SMTP relay
- Basic analytics
- Email authentication
- Standard support
- Up to 50,000 emails/month
- Priority delivery
- Advanced analytics
- Dedicated IP
- Custom domain setup
- Purchase email credits
- No monthly subscription
- No credit expiration
- Full feature access
Best For
Transactional Emails
Send order confirmations, password resets, and notifications with high deliverability
Email Marketing Campaigns
Design and send marketing emails with built-in campaign tools and analytics
Application Email Integration
Integrate SMTP relay into web applications via API or standard SMTP configuration
Multi-Brand Email Sending
Manage email delivery for multiple brands and domains from a single account
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