SMTP2GO

Freemium#22 of 32 in Email APIsTransactional Email SoftwareSMTP Relay Services

SMTP2GO: A mature outbound email service with SMTP, API sending, tracking, and webhooks. Ranked #22 of 32 in Email APIs by our editors (5.9/10); pricing: Free plan · paid from $10/mo; best for teams needing reliable SMTP and API delivery.

5.9/10★★★☆☆Editor score

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SMTP2GO5.9 Visit SMTP2GO

At a glance

• Editor score
  5.9 / 10
• Pricing
  Free plan · paid from $10/mo
• Best for
  Teams needing reliable SMTP and API delivery
• Free plan
  Yes
• Paid from
  $10/mo
• Inbound email
  No
• Founded
  2006 · New Zealand
• Facts checked
  16 Sep 2026

• Where it wins

  • SMTP relay and HTTP API support standard and MIME email sending.
  • Detailed delivery, bounce, spam, open, click, and unsubscribe tracking.
  • Reusable templates, domain authentication, webhooks, and paid-plan archiving.

• Where it doesn't

  • Outbound email only; it does not provide inbound mailbox service.
  • The Free plan is limited to 1,000 emails per month and 200 per day.
  • Supplied integrations are not part of the offering.

Our verdict on SMTP2GO

SMTP2GO is a hosted email delivery service for businesses and software applications that need outbound transactional, operational, or marketing email. It supports SMTP relay and an HTTP API, including standard and MIME email endpoints, making it suitable for teams connecting delivery to applications or existing mail workflows. Its web platform and API also cover reusable HTML templates, sender-domain verification with SPF and DKIM, and programmatic account features. Founded in 2006, SMTP2GO has a long operating history in this category.

Published plans show a free entry point with 1,000 emails per month, a 200-email daily limit, five days of reporting, and one webhook. Starter costs $10 per month and raises the allowance to 10,000 emails per month, while adding 30 days of reporting, subaccount management, and SMS messaging. Professional costs $75 per month for 100,000 emails per month, a dedicated IP address, email testing tools, and 30 days of reporting. Premier supports over 3,000,000 emails per month and includes a dedicated IP address plus personalized setup and support. Paid plans also include email archiving.

Its strongest fit is for teams that value delivery visibility and event-driven workflows. Real-time activity and delivery reporting, bounce and spam monitoring, engagement tracking, and HTTP or HTTPS POST webhooks provide operational signals around sent email. Templates with variables can support repeatable message production, while domain verification helps configure sender authentication. SMTP2GO is less suitable for products that need inbound email handling or a broader integration ecosystem. Choose it for focused outbound delivery through SMTP and API; consider an alternative when inbound mailbox service or supplied integrations is central to the project.

SMTP2GO pricing

All 4 SMTP2GO plans and prices →

SMTP2GO fact sheet

Alternatives to SMTP2GO

• MailgunA mature email API with broad sending, inbound routing, tracking, and deliverability tools.9.7
• Twilio SendGrid Email APIA mature email API with broad developer features, but no ongoing free plan.8.9
• Amazon SESA low-cost AWS email API for high-volume transactional and marketing sending.8.3

See all SMTP2GO alternatives →

Also listed in

• Transactional Email Software
• SMTP Relay Services

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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

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Last updated 28 Sep 2026 · How we research and update