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turboSMTP

Send your Transactional and marketing Emails safely, track your results and use powerful APIs designed for developers by developers.·serversmtp.com

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turboSMTP is a professional SMTP service that sends transactional and marketing emails on behalf of businesses and developers. It provides SMTP relay and REST API access, SPF/DKIM authentication, dedicated IPs, click/open tracking, email validation, and delivery analytics. The service also includes a built-in email marketing tool for designing, sending and tracking campaigns.

What it's for

Sending transactional emails such as order confirmations and password resetsSending marketing newsletters and campaignsIntegrating email sending into websites or apps via APITracking email opens and clicks in real timeValidating contact lists before sending campaignsManaging bounces, spam complaints and unsubscribesReselling email relay to customers via sub-accounts

Features 19

24/7 multi-language customer support (phone, chat, email/ticket)
API Key based authentication (Consumer Key/Secret)
Bounce, spam complaint and unsubscribe management
Built-in email marketing campaign tool
Compatibility with major mail clients (Thunderbird, Windows Mail, SendBlaster, GroupMail)
Custom Tracking Domain
Dedicated IP addresses
Dedicated IP pools with automated routing (add-on)
Email validation tool for contact list screening
Money-back guarantee within 15 days or 100 sent messages
No bandwidth caps
Real-time click and open tracking
Real-time event notification webhooks
Regular account activity reports
REST/Web API for sending email
Smart adaptive email routing
SMTP relay service
SPF / DKIM domain authentication
Sub-account and white-label reselling system

At a glance

free tierAPI

TypeWeb app

DeploymentCloud

PlatformsWeb

LanguagesEnglish, Italian, French, Spanish, German, Portuguese, Bulgarian, Dutch, Greek, Polish, Russian, Swedish, Turkish

Fordevelopers, marketers, small businesses, growing businesses, large email providers

CompanyeDisplay Srl

Integrations

WordPress

Complianceself-reported

GDPR

Resources

Docs

Pricing

All subscription prices are stated in EUR (€0, €14.95, €79.95 per month). Pay-as-you-go plans are one-time prepaid credit purchases, with unused credits expiring one year after purchase. Enterprise plans use custom, consumption-based pricing billed the month after usage.

FREEFree

Homepage separately mentions '6000 emails/month' for the free tier, which conflicts with the 200 emails/day limit stated on the pricing page.

Up to 200 emails/day; valid for first 6 months

BASIC€14.95/mo

Billed monthly.

Up to 15,000 emails/mo

PRO€79.95/mo

'Free for 1 month' promotional offer mentioned.

Volume allocation listed as 15,000 emails/mo on the page (may be a display error, as feature comparison lists 100K-2.5M/month for Pro)

ENTERPRISEQuote

Custom tailored pricing; pay-as-you-consume.

Over 2.5M emails/month or on demand

Silver (Pay as you go)Quote

Shares Basic plan features.

50,000 emails prepaid

Gold (Pay as you go)Quote

Shares Basic plan features.

100,000 emails prepaid

Resell (Pay as you go)Quote

Most selected plan; shares Basic plan features.

300,000 emails prepaid

Titanium (Pay as you go)Quote

Shares Basic plan features.

500,000 emails prepaid

Diamond (Pay as you go)Quote

Shares Basic plan features.

1,000,000 emails prepaid

Enterprise (Pay as you go)Quote

Priced on request.

1,000,000+ emails prepaid