SMTP2GO
SMTP2GO is a bootstrapped, New Zealand-headquartered cloud email delivery provider founded in 2006, offering SMTP relay and a REST Email API across 10 global data centers to 35,000+ businesses in 130+ countries, with tiered freemium-to-subscription pricing, an MSP/reseller channel, and ISO 27001-certified infrastructure.
- Company typePrivate
- Founded2006
- HeadquartersChristchurch, New Zealand
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What SMTP2GO does
SMTP2GO (legally Sand Dune Mail Ltd, with a US operating entity SMTP2GO, Inc. in Texas) is a Christchurch, New Zealand-headquartered cloud email delivery provider founded in 2006. The company operates a global SMTP relay and Email API platform backed by ten data centers across the US, Europe, and Australia/New Zealand, designed to solve email deliverability failures that occur when applications rely on webhost or ISP SMTP services. Its core service provides automated SPF/DKIM/DMARC configuration, real-time delivery tracking, spam filter testing across 40+ email clients, and analytics dashboards; the REST Email API exposes programmatic sending, subaccount management, suppressed address handling, sender domain controls, webhooks, and statistical reporting, with SDKs in JavaScript, Node.js, PHP, Ruby, and Python.
SMTP2GO serves 35,000+ businesses across 130+ countries, with a customer mix spanning enterprise (Hewlett-Packard, GlaxoSmithKline, Deloitte, Ghirardelli Chocolate), government/healthcare (NHS Providers), managed service providers and resellers, developers, and SMBs. Distribution combines self-serve product-led sign-up, a WordPress and cPanel plugin ecosystem, an MSP/Reseller Partner Program with tiered discounts (Silver 10%, Gold 15%, Platinum 20%), and a REST API for embedded use. Recent product additions in 2026 include enhanced API throughput and scheduling, Entri-powered automated DNS records, an SMS Messaging add-on, and migration tooling for Microsoft 365 customers displaced by the retirement of Basic Authentication for SMTP AUTH.
The business operates on a freemium-to-subscription model with three publicly listed tiers — Free at $0/month for 1,000 emails, Starter at $15/month for 10,000 emails, and Professional at $79/month for 100,000 emails — plus usage-based overage at $1.20/thousand (Starter) and $0.85/thousand (Professional). Add-ons include SMS, Email Archiving, and dedicated IP. The company is bootstrapped (no disclosed external funding), holds ISO 27001 and ISO 9001 certifications, is GDPR compliant, and is a member of M3AAWG; it has been named to the Deloitte Technology Fast 500 Asia/Pacific for five consecutive years and has ranked #1 Best Free SMTP Server by EmailToolTester for three consecutive years. Leadership consists of CEO Charles Abrahamson, CIO Andrew Hill, and co-founder/Director Simon Slade, with the headcount band disclosed at 11-50 employees.
SMTP2GO firmographics
Firmographics- Name
- SMTP2GO
- Legal name
- Sand Dune Mail Ltd
- Website
- https://smtp2go.com
- Company type
- Private
- Founded year
- 2006
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- SMTP2GO is a bootstrapped, New Zealand-headquartered cloud email delivery provider founded in 2006, offering SMTP relay and a REST Email API across 10 global data centers to 35,000+ businesses in 130+ countries, with tiered freemium-to-subscription pricing, an MSP/reseller channel, and ISO 27001-certified infrastructure.
- Ownership category
- akta.pro rank
SMTP2GO industry classification
Industry- Product category
- Transactional Email Delivery
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)
- SIC
- Services-Computer Processing & Data Preparation (7374), Telegraph & Other Message Communications (4822)
- akta.pro primary industry
- Cybersecurity Management for SMB (Managed Security Add‑ons) (BPAEABAG)
- akta.pro secondary industry
- Email Authentication & Domain Protection (DMARC/SPF/DKIM) (HDADAKAC)
Keywords
Where SMTP2GO is headquartered
LocationHeadquarters
- HQ city
- Christchurch
- HQ country
- New Zealand
- HQ region
- Oceania
Offices3 records
Markets served
SMTP2GO business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Infrastructure, Technology or R&D, Personnel, Operations, Marketing or Sales
Revenue model
- Subscription Plans: Tiered monthly subscription model with three main plans: Free (1,000 emails/month), Starter ($15/month for 10,000 emails), and Professional ($75/month for 100,000 emails). Annual billing provides 2 months free discount.
- Usage-Based Overage: Overage charges applied when monthly email volume exceeds plan limits. Starter tier charges $1.20 per thousand extra emails, Professional tier charges $0.85 per thousand extra emails.
- Freemium Entry Point: Free tier provides limited monthly email volume (1,000 emails/month, 200/day) allowing users to experience core functionality before upgrading to paid plans
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free Plan - $0/month for 1,000 emails |
| Subscription | Monthly | Starter Plan - $15/month for 10,000 emails |
| Subscription | Monthly | Professional Plan - $75/month for 100,000 emails |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels6 records
SMTP2GO product offering
Product offeringCore offering
SMTP2GO provides a cloud-based SMTP relay and email delivery service for businesses, offering transactional email sending, a REST API for programmatic email delivery, and global multi-region infrastructure spanning 10 data centers. The platform includes automated email authentication (SPF/DKIM/DMARC), real-time delivery tracking, analytics, and integrations with 40+ platforms including WordPress, cPanel, Slack, and major CRMs.
Product overview
SMTP2GO is a transactional email delivery platform founded in 2006, providing SMTP relay services and a REST API for sending, tracking, and managing business emails. The platform consists of a core email delivery service with built-in analytics and real-time reporting, an Email API for programmatic access, and an SMS messaging add-on for multi-channel communication. Additional features include email testing tools (spam filter tests and email client previews across 40+ clients), subaccount management for MSPs and resellers with tiered partner programs, and email archiving as a paid add-on. The platform operates global server infrastructure across US, EU, Australia, and Singapore with multi data center redundancy and intelligent best-path routing to ensure high deliverability.
Differentiator
Problem solved
Functional benefit
Products and services
- SMTP2GO Core Email Delivery Service Primary transactional email delivery platform providing SMTP relay services with global server infrastructure across US, EU, Australia, and Singapore. Includes real-time tracking, bounce and spam complaint monitoring, blacklist monitoring, automated SPF/DKIM/DMARC authentication, and 100% SLA guarantee for email delivery. Targets SMBs, developers, and enterprises sending transactional and marketing emails.
- SMTP2GO Email API REST API enabling programmatic email sending, email tracking, and account management including subaccounts, suppressed addresses, sender domains, and statistical reporting. Supports webhooks for real-time event notifications and provides SDKs and code examples in JavaScript, NodeJS, PHP, Ruby, and Python. Designed for developers integrating email capabilities into applications and platforms.
- SMS Messaging Send SMS messages via email-to-SMS gateway or through the SMTP2GO API. Dedicated SMS sender numbers available for purchase. Functions as an add-on to the email service with additional charges applying beyond email delivery volume. Enables multi-channel customer communications including verification codes and notifications.
- MSP/Reseller Partner Program White-label email delivery solution for managed service providers and resellers. Includes tiered discount program (Silver 10%, Gold 15%, Platinum 20%), unlimited subaccounts and users, subaccount management with hot-swap login for client support, and dedicated account management tools. Enables partners to offer SMTP2GO services to their own customer bases.
- Email Archiving Store copies of sent emails for compliance, reference, or troubleshooting purposes. Available as a paid add-on to SMTP2GO subscription plans with extended storage duration options. Supports audit trail and record-keeping requirements for businesses in regulated industries.
Quantifiable outcome
- Improves email deliverability by automating SPF/DKIM/DMARC authentication
Companies that use SMTP2GO
Customer profileNamed customers5 records
Segments5 records
Ideal customer profiles4 records
SMTP2GO technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration42 records
Feature4 records
SMTP2GO partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core.
- WordPresscoreOfficial SMTP2GO plugin available in the WordPress plugin directory, enabling WordPress site owners to configure SMTP2GO for improved email deliverability directly from their WordPress dashboard
- cPanel/WHMcoreOfficial cPanel/WHM plugin allowing hosting providers and website administrators to configure SMTP2GO within the cPanel interface
- Reseller/MSP PartnerscoreManaged Service Provider and reseller program enabling partners to white-label and resell SMTP2GO services to their own customer bases with volume pricing
Scale indicators5 records
Recent moves6 records
Expansion highlights6 records
SMTP2GO competitors and assessment
Company assessmentDirect peers
- Postmark (ActiveCampaign): Postmark is a transactional email service known for deliverability focus and developer-friendly SMTP/API. It directly competes with SMTP2GO on the same transactional email use case for SMBs and developers.
- Mailgun (Sinch): Mailgun provides transactional email API and SMTP relay services targeting developers. It competes head-to-head with SMTP2GO on email delivery infrastructure, with similar API-first positioning and developer customer base.
- Twilio SendGrid: Twilio SendGrid is the largest dedicated transactional and marketing email API provider. It directly competes with SMTP2GO on SMTP relay and email API for developers and SMBs, with overlapping target customers and similar core functionality.
- SparkPost: SparkPost provides email delivery infrastructure and APIs for transactional and marketing email at scale. It directly competes with SMTP2GO on enterprise and high-volume email delivery, with overlapping developer and platform customers.
- Brevo (formerly Sendinblue): Brevo offers transactional email, marketing automation, and CRM as an integrated SMB platform. It competes with SMTP2GO on transactional SMTP/API for SMB customers while extending into adjacent marketing features.
- Pepipost (Netcore Cloud): Pepipost provides transactional email API and SMTP relay services, particularly focused on high-volume senders. It directly competes with SMTP2GO's Professional tier on API-first email delivery for SMB and mid-market customers.
- SocketLabs: SocketLabs is an email delivery service offering SMTP relay and API for transactional and marketing email. It competes with SMTP2GO on similar SMB and developer-focused transactional email delivery use cases.
- Mailjet: Mailjet is a European transactional and marketing email provider with SMTP relay and API offerings. It competes with SMTP2GO on the same SMB and developer segments with comparable pricing tiers.
Emerging players
- Mailtrap: Mailtrap started as an email testing/sandbox platform and has expanded into email delivery infrastructure. It overlaps with SMTP2GO on SMTP relay and deliverability tooling, targeting similar developer audiences.
Broad incumbents
- Amazon Simple Email Service (SES): Amazon SES is a hyperscaler email service bundled into the AWS ecosystem. It competes broadly on SMTP relay and email API but at commodity pricing and as part of a wider cloud portfolio rather than a specialized email delivery focus.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
SMTP2GO social profiles
Digital presenceSMTP2GO compliance and trust
Trust signalCompliance4 records
SMTP2GO financial estimates
Financial estimateRevenue estimate
Valuation estimate
SMTP2GO leadership team
Management profileNumber of profiles
Profiles3 records
SMTP2GO funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SMTP2GO M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SMTP2GO
What does SMTP2GO do?
SMTP2GO provides a cloud-based SMTP relay and email delivery service for businesses, offering transactional email sending, a REST API for programmatic email delivery, and global multi-region infrastructure spanning 10 data centers. The platform includes automated email authentication (SPF/DKIM/DMARC), real-time delivery tracking, analytics, and integrations with 40+ platforms including WordPress, cPanel, Slack, and major CRMs.
Is SMTP2GO a public or private company?
SMTP2GO is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was SMTP2GO founded?
SMTP2GO was founded in 2006. It employs 11 to 50 people.
Where is SMTP2GO based?
SMTP2GO is headquartered in Christchurch, New Zealand, in the Oceania region.
How does SMTP2GO make money?
Three revenue lines are on record. Subscription Plans are the primary driver. The others are usage-Based Overage and freemium Entry Point.
Who are SMTP2GO's main competitors?
Direct peers on record are Postmark (ActiveCampaign), Mailgun (Sinch), Twilio SendGrid, SparkPost, Brevo (formerly Sendinblue), Pepipost (Netcore Cloud), SocketLabs and Mailjet. Mailtrap is listed as an emerging player. Amazon Simple Email Service (SES) is listed as a broad incumbent.
Does SMTP2GO have an API?
Yes. SMTP2GO provides a REST API that enables developers to send emails, retrieve details of previously sent emails, and manage various features including Sender Domains, SMTP Users, sub-accounts, suppressed email addresses and domains, and retrieve statistical reports. The API includes full code examples in multiple languages including JavaScript, NodeJS, PHP, Ruby, and Python. Webhooks are available as an advanced feature to notify web services whenever an event happens in the SMTP2GO account. API endpoint: https://api.smtp2go.com/v3/email/send Developer documentation is at developers.smtp2go.com.
What industry is SMTP2GO in?
SMTP2GO's product category is Transactional Email Delivery. Its primary akta.pro industry code is BPAEABAG, Cybersecurity Management for SMB (Managed Security Add‑ons), with a secondary code of HDADAKAC, Email Authentication & Domain Protection (DMARC/SPF/DKIM). Its NAICS code is 5182 and its SIC code is 7374.