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SMTP2GO

Free plan APIWeb

What SMTP2GO is

SMTP2GO is an email delivery service for businesses and everyday senders, offering SMTP relay and API delivery through web and API platforms. Its real-time reporting covers deliveries, bounces, opens, clicks, unsubscribes and spam reports, and it supports SPF and DKIM authentication for sender domains. The API can send standard or MIME emails, retrieve activity and statistics, manage domains and users, and configure webhooks. Paid plans also support SMS to up to 100 destination addresses at a time through the API. The Email Testing tool previews messages in more than 50 email clients; spam-filter tests are available on Professional. Integrations include WordPress, cPanel/WHM, Slack and libraries for several programming languages. SMTP2GO has a free plan with 1,000 emails per month; Starter costs $10/mo and includes 10,000 emails/mo. Professional costs $75/mo and includes 100,000 emails/mo, a dedicated IP and email testing tools. Attachments can be up to 50MB per email.

Who it suits

It suits senders who need SMTP or API email delivery, reporting and domain authentication. Agencies, MSPs and resellers can use subaccounts to separate customer data.

What it does well

Real-time reporting includes opens, clicks and spam reports.
Supports SPF and DKIM authentication for sender domains.
Free plan includes 1,000 emails/month.
Attachments can be up to 50MB per email.

What to know first

Free-plan phone and chat support is limited to 14 days.
Mailing lists over 100 addresses must meet opt-in and unsubscribe requirements.
Email data is deleted after 35 days by default.

Limits

The Free plan allows 1,000 emails per month, and its phone and chat support is limited to 14 days. Starter includes 10,000 emails monthly and 30 days of email reporting; extra emails cost $1 per thousand.

Plans

Plan	Billed and limits	Price
Free	Free · 1,000 emails/month · phone and chat support limited to 14 days	Free
Starter	$10/mo · 10,000 emails/mo · 30 days of email reporting · extra emails $1/thousand	$10 a month
Starter	$100/year · 10,000 emails/mo · 30 days of email reporting · extra emails $1/thousand	$100 a year
Professional	$75/mo · 100,000 emails/mo · dedicated IP · email testing tools · extra emails $0.85/thousand	$75 a month
Professional	$750/year · 100,000 emails/mo · dedicated IP · email testing tools · extra emails $0.85/thousand	$750 a year
Premier	Custom · Over 3,000,000 emails/mo · dedicated IP · email testing tools · extra emails available	On request

As smtp2go.com lists them, read 30 Sept 2026. The maker's own page has the final word.

Getting started

Visit https://www.smtp2go.com/.
Choose the Free plan or a paid plan based on monthly sending volume and features.
Connect through SMTP or the API.
Configure sender-domain SPF and DKIM authentication.
Use an official integration, API library, or webhooks as needed.

Verdict

SMTP2GO combines SMTP and API delivery with event reporting, authentication and integrations. The free plan provides 1,000 emails/month, while higher-volume senders can consider paid plans from $10/mo.

Questions

Does SMTP2GO have a free plan?

Yes. Free includes 1,000 emails per month. Phone and chat support on the free plan is limited to 14 days.

How much do the paid plans cost?

Starter costs $10/mo and Professional costs $75/mo. Premier is custom priced.

Which platforms can I use?

SMTP2GO lists API and web platforms. It also has official integrations including WordPress, cPanel/WHM, and Slack.

Can SMTP2GO receive email?

No. Inbound email is listed as unsupported.

Does SMTP2GO offer email testing?

Email previews cover more than 50 email clients. Spam-filter tests are available on Professional-level plans.

What happens to stored email data?

Email data is encrypted at rest and deleted after 35 days by default. Paid accounts can extend activity storage or enable archiving for 3 months to 5 years.

Facts from SMTP2GO's own pages

API capabilities: The API can send standard or MIME emails, retrieve account activity and statistics, manage domains and users, and configure webhooks. · developers.smtp2go.com, 30 Sept 2026
Attachment limit: Emails can include attachments up to 50MB per email. · smtp2go.com, 30 Sept 2026
Authentication: SMTP2GO supports SPF and DKIM authentication for sender domains. · smtp2go.com, 30 Sept 2026
Compliance: SMTP2GO states that it is GDPR compliant and ISO 27001 and ISO 9001 certified. · support.smtp2go.com, 30 Sept 2026
Data centers: SMTP2GO has data centers in the United States, European Union and Australia, with storage selected by account location. · smtp2go.com, 30 Sept 2026
Data retention: Email data is encrypted at rest and deleted after 35 days by default, while paid accounts can extend activity storage or enable archiving for 3 months to 5 years. · support.smtp2go.com, 30 Sept 2026
Email delivery service: SMTP2GO provides SMTP and API email delivery for businesses and everyday senders. · developers.smtp2go.com, 30 Sept 2026
Email testing: The Email Testing tool previews messages in more than 50 email clients and performs spam-filter tests on Professional-level plans. · support.smtp2go.com, 30 Sept 2026
Founded: 2006 · smtp2go.com, 28 Sept 2026
Headquarters: New Zealand · smtp2go.com, 28 Sept 2026
Integrations: Official integrations include WordPress, cPanel/WHM, Slack and open-source libraries for .NET, Go, Node.js, PHP, Python, Ruby, Rust and Django. · smtp2go.com, 30 Sept 2026
Intended users: Subaccounts are designed for agencies, MSPs and resellers that need to separate customer data. · support.smtp2go.com, 30 Sept 2026
Reporting: The service provides real-time reporting for deliveries, bounces, opens, clicks, unsubscribes and spam reports. · support.smtp2go.com, 30 Sept 2026
Sending restrictions: Mailing lists over 100 addresses must be fully opted in, recently mailed, and include an unsubscribe link. · smtp2go.com, 30 Sept 2026
SMS sending: Paid plans can send SMS messages to up to 100 destination addresses at a time through the API. · developers.smtp2go.com, 30 Sept 2026
Support: SMTP2GO provides localized 24/7 support through live chat, email tickets and phone, with free-plan phone and chat support limited to 14 days. · support.smtp2go.com, 30 Sept 2026