SMTP2GO

Reliable SMTP relay and email API with worldwide delivery

Freemium 💰 Deals Available

About SMTP2GO

SMTP2GO has handled email delivery since 2006 and is based in Christchurch, New Zealand. More than 40,000 businesses worldwide use it. It works as a drop-in SMTP relay, so you point your app, website, CMS, or mail server at it instead of a throttled ISP or web host SMTP, and it also offers a REST API with code examples for Node.js, PHP, Python, Ruby, and more. Mail is routed through redundant data centers in the US, Europe, and Australia. Real-time reports track deliveries, opens, clicks, bounces, unsubscribes, and spam complaints, and webhooks can push those events to your own systems or to Zapier. Every plan includes automatic SPF/DKIM setup, blacklist monitoring, ISP feedback loops, spamtrap detection, TLS encryption, and subaccount management. Higher tiers add a dedicated IP and email testing tools that preview rendering across 40+ clients and run spam-filter checks. SMTP2GO is ISO 27001 certified, GDPR compliant, and a member of M3AAWG, and its award-winning support team is available around the clock at no extra cost.

Key Features

SMTP relay that bypasses ISP/web-host throttling and blocked ports

REST API with examples for Node.js, PHP, Python, Ruby, .NET, Go

Real-time reporting on deliveries, opens, clicks, bounces, and spam complaints

Automatic SPF and DKIM configuration

Webhooks for email events (Zapier-compatible)

Email testing: rendering previews across 40+ clients and spam-filter checks

Blacklist monitoring, ISP feedback loops, and spamtrap detection

Multi-region redundant data centers (US, Europe, Australia)

Subaccount management for agencies and resellers

Dedicated IP addresses (Professional and above)

SMS messaging

Pros & Cons

Pros

• Generous free plan with 1,000 emails/month
• Very easy setup as a drop-in SMTP relay for any app, CMS, or mail server
• Redundant multi-region infrastructure with a 100% uptime SLA
• Round-the-clock, award-winning human support on all paid plans
• Affordable entry price at $10/month for 10,000 emails
• ISO 27001 certified and GDPR compliant

Cons

• Email reporting history limited to 30 days on all plans
• Free plan support is limited to the first 14 days
• Dedicated IP only from the $75/month Professional plan
• Fewer marketing and campaign features than dedicated email marketing platforms
• No built-in email template editor comparable to marketing tools

Best For

Small businesses fixing unreliable email from web hosts or ISPs WordPress and CMS sites that need reliable transactional email Developers sending app notifications via SMTP or API MSPs and agencies managing email for multiple clients with subaccounts Teams wanting a simple, affordable SendGrid/Mailgun alternative