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Transactional Email APIs pricing

Send application-triggered email reliably through an API or SMTP service. Compare the price territory across 45 public products; prices are aligned only when their currency, billing schedule, and charged unit match.

Where public prices land

Ranges compare recurring prices with the same currency, billing schedule, and unit. Plans with commissions or usage fees are shown individually below.

Position Currency Cadence Unit Range Median n
First paid plan EUR Annual commitment monthly Flat EUR 8–8 EUR 8 1
Highest public plan EUR Annual commitment monthly Flat EUR 216–216 EUR 216 1
First paid plan EUR Monthly Flat EUR 10–79.95 EUR 24 5
Highest public plan EUR Monthly Flat EUR 35–320 EUR 79.95 5
Seller-highlighted plan EUR Monthly Flat EUR 35–90 EUR 62.5 2
First paid plan EUR Monthly Usage EUR 9.99–29 EUR 19.495 2
Highest public plan EUR Monthly Usage EUR 9.99–115 EUR 62.495 2
First paid plan USD Annual commitment monthly Flat USD 5–8.33 USD 5.6 3
Highest public plan USD Annual commitment monthly Flat USD 25–62.5 USD 36 4
Seller-highlighted plan USD Annual commitment monthly Flat USD 5.6–62.5 USD 34.05 2
First paid plan USD Annual commitment monthly Usage USD 12–100 USD 56 2
Highest public plan USD Annual commitment monthly Usage USD 120–250 USD 185 2
First paid plan USD Monthly Flat USD 1–100 USD 19.95 19
Highest public plan USD Monthly Flat USD 10–524.99 USD 89.95 19
Seller-highlighted plan USD Monthly Flat USD 7–100 USD 40 9
First paid plan USD Monthly Usage USD 0.0013–250 USD 15 13
Highest public plan USD Monthly Usage USD 0.0013–500 USD 75 13
Seller-highlighted plan USD Monthly Usage USD 45–45 USD 45 1

Products in this market

  1. AhaSend

    AhaSend is an EU-hosted transactional email API and SMTP relay with domains, webhooks, delivery logs, inbound routing, and multi-region infrastructure.

    1 plan · Enterprise, Individual, Mid-market, and Small business

    USD

  2. Amazon SES

    Amazon Simple Email Service is a managed cloud email service for transactional and bulk sending, inbound email processing, deliverability, and email APIs.

    3 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  3. Anypost

    Modern transactional and broadcast email delivery service with HTTP and SMTP APIs, official SDKs, Markdown rendering, tags, tracking, webhooks, event history, and AI template assistance.

    4 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  4. Bird Email

    Bird Email provides transactional and application email delivery through API and SMTP, with templates, analytics, alerts, webhooks, and deliverability tooling.

    3 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  5. CloudMailin

    Developer email API for receiving inbound messages as webhooks and sending outbound transactional email, with search, attachment handling, logs, and delivery status APIs.

    5 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  6. Coresender

    EU-based email delivery service with SMTP and API integration, webhooks, suppression management, engagement insights, SPF and DKIM authentication, and tracking statistics.

    4 plans · Enterprise, Individual, Mid-market, and Small business

    EUR

  7. Courier

    Courier provides developer notification APIs for transactional email and multichannel messages, with templates, routing, batching, testing, and analytics.

    3 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  8. EmailJS

    EmailJS sends application and website email through hosted email APIs and templates, with request quotas, contact history, attachments, and team access.

    4 plans · Individual, Mid-market, and Small business

    USD

  9. EmailLabs

    EmailLabs provides cloud SMTP and REST APIs for transactional and marketing email delivery, with templates, analytics, validation, webhooks, and dedicated infrastructure.

    4 plans · Enterprise, Individual, Mid-market, and Small business

    EUR

  10. Emailit

    Prepaid email delivery platform for API and SMTP sends, campaigns, verification, automation, deliverability analytics, and optional extended retention and dedicated IPs.

    3 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  11. Engagespot

    Developer notification infrastructure for transactional email and multichannel workflows, with templates, routing, localization, in-app messaging, preferences, and observability.

    3 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  12. Keplars

    Transactional email delivery software or API for applications and businesses.

    3 plans · Enterprise, Mid-market, and Small business

    USD

  13. Knock

    Hosted notification infrastructure for transactional email, in-app, chat, push, and SMS workflows, with templates, preferences, broadcasts, analytics, and delivery orchestration.

    3 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  14. Lettermint

    Transactional email delivery software or API for applications and businesses.

    4 plans · Enterprise, Mid-market, and Small business

    EUR

  15. Lettr

    Transactional email delivery software or API for applications and businesses.

    4 plans · Enterprise, Mid-market, and Small business

    USD

  16. MagicBell

    Hosted notification system for transactional email and in-app delivery, with smart routing, integrations, projects, user targeting, templates, and usage analytics.

    3 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  17. MailChannels

    Transactional email delivery software or API for applications and businesses.

    4 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  18. MailPace

    Transactional email provider with HTTP API, SMTP sending, inbound email webhooks, idempotent requests, delivery tracking, bounce handling, unlimited domains, and unlimited team members.

    1 plan · Enterprise, Individual, Mid-market, and Small business

    USD

  19. Mailazy

    Transactional email delivery software or API for applications and businesses.

    3 plans · Enterprise, Mid-market, and Small business

    USD

  20. Mailcoach Cloud

    Mailcoach Cloud is a hosted email platform for campaigns, automations, and transactional messages, with API access and send-based usage pricing.

    1 plan · Individual, Mid-market, and Small business

    EUR

  21. MailerSend

    MailerSend is a transactional email service providing an intuitive email API and SMTP relay for sending and receiving emails with high deliverability. It offers features like dynamic email templates, inbound email routing, email verification, team management, multiple domains, DMARC monitoring, and SMS sending capabilities. The platform supports easy integration with SDKs for popular programming languages and is designed for businesses to send transactional emails such as invoices, notifications, and password resets efficiently.

    4 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  22. MailerToGo

    MailerToGo is a transactional email delivery service with SMTP, authenticated sending, managed deliverability, event history, domains, and volume-based overages.

    4 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  23. Maileroo

    Transactional email delivery software or API for applications and businesses.

    2 plans · Mid-market and Small business

    USD

  24. Mailgun

    Transactional email delivery software or API for applications and businesses.

    3 plans · Enterprise, Mid-market, and Small business

    USD

  25. Mailtrap Email Sending

    Transactional email delivery software or API for applications and businesses.

    13 plans · Enterprise, Mid-market, and Small business

    USD

  26. NexusProMail

    EU-hosted transactional email API with sandbox keys, templates, webhooks, suppression management, domain warming, multi-brand isolation, DPA support, and dedicated-IP options.

    3 plans · Enterprise, Individual, Mid-market, and Small business

    EUR

  27. Novu Cloud

    Cloud notification infrastructure for transactional email and multichannel messaging, with workflow orchestration, templates, in-app feeds, environments, logs, and data residency.

    4 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  28. Postmark

    Postmark is a fast, reliable email delivery service focused on transactional email. It offers an Email API and SMTP service to send and receive emails with high deliverability and speed. Features include message streams to separate transactional and promotional emails, email templates, inbound email processing, analytics, and detailed activity retention. It supports multiple programming languages with official SDKs and provides scalable plans suitable for developers, startups, agencies, and enterprises. Postmark emphasizes deliverability, ease of integration, and customer support.

    4 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  29. Raven.dev

    Single notification API for transactional email, push, SMS, WhatsApp, Slack, voice, and in-app messages, with routing, preferences, templates, analytics, and sequencing.

    3 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  30. Resend

    Resend is a developer-focused email delivery platform designed to send transactional and marketing emails at scale with high deliverability. It offers simple integration via SDKs and APIs, supports multiple programming languages and frameworks, provides features like dedicated IPs, domain authentication (DKIM, SPF, DMARC), real-time webhooks, analytics, contact management, and email template development using React. It targets developers and businesses needing reliable, scalable email infrastructure with easy-to-use APIs and tools.

    4 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  31. SMTP.com

    SMTP.com is a premium email delivery and email relay solution designed to send and track high volume transactional and marketing emails with exceptional deliverability. It offers scalable infrastructure, reputation management, detailed reporting, and expert support to ensure emails reach subscriber inboxes reliably. Features include an Email Relay API, Reputation Defender for list health, and a unified delivery ecosystem tailored for high volume senders.

    1 plan · Enterprise, Mid-market, and Small business

    USD

  32. SMTP2GO

    Transactional email delivery software or API for applications and businesses.

    4 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  33. SMTPeter

    Transactional email delivery software or API for applications and businesses.

    1 plan · Enterprise, Mid-market, and Small business

    EUR

  34. SendLayer

    Transactional email delivery software or API for applications and businesses.

    4 plans · Enterprise, Mid-market, and Small business

    USD

  35. SendPulse SMTP

    Hosted transactional email delivery through SMTP relay and API, with authenticated sending domains, tracking, logs, and scalable message throughput.

    1 plan · Individual, Mid-market, and Small business

    USD

  36. Sendrealm

    Unified messaging platform for transactional email, broadcasts, push notifications, audiences, templates, event-driven automation, analytics, SMTP, APIs, SDKs, and agent tools.

    2 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  37. SocketLabs

    Transactional email delivery software or API for applications and businesses.

    3 plans · Enterprise, Mid-market, and Small business

    USD

  38. SuprSend

    Hosted notification API and workflow platform for transactional email and multichannel messages, with preferences, localization, digests, in-app feeds, logs, and data modeling.

    4 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  39. Sweego

    Transactional email delivery software or API for applications and businesses.

    5 plans · Enterprise, Mid-market, and Small business

    EUR

  40. TruoCloud Mail Gateway

    Transactional email gateway with HTTP API and SMTPS delivery, bring-your-own DKIM, verified domains, per-message event history, webhooks, and isolated service credentials.

    4 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  41. Twilio Email

    Usage-based cloud email service integrated into the Twilio communications console for adding scalable email delivery to cross-channel application workflows.

    1 plan · Enterprise, Individual, Mid-market, and Small business

    USD

  42. Twilio SendGrid

    Cloud email delivery engine with SMTP and APIs, domain authentication, templates, webhooks, analytics, suppression management, validation, dedicated IPs, and deliverability tools.

    3 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  43. UniOne

    UniOne provides transactional and bulk email delivery through SMTP and API, with validation, analytics, support, and volume pricing.

    2 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  44. ZidiMail

    Transactional email API and SMTP relay with domain authentication, batch sending, open and click tracking, bounce suppression, webhooks, analytics, and delivery tooling.

    3 plans · Enterprise, Individual, Mid-market, and Small business

    USD

  45. turboSMTP

    Transactional email delivery software or API for applications and businesses.

    2 plans · Enterprise, Mid-market, and Small business

    EUR

Compare the alternatives

Latest observed changes

  1. Mailtrap Email Sending
    Official pricing page
  2. Maileroo
    Official pricing page
  3. Mailazy
    Official pricing page
  4. SMTP2GO
    Official pricing page
  5. Sweego
    Official pricing page
  6. Lettermint
    Official pricing page
  7. Resend
    Official pricing page
  8. Lettermint
    Official pricing page
  9. Emailit
    Official pricing page
  10. Coresender
    Official pricing page