Email Sending Services
Free email sending services
9 of the 12 email sending services in this directory are free or have a free plan.
All of them pair the free plan with paid ones; the table says what each free plan includes.
Listings checked up to Oct 18, 2026 · Where the facts come from
| Tool | Price | What is free |
|---|---|---|
| SMTP2GOSMTP relay and email API priced by emails a month, with a free plan | Free plan · from $15/mo | 1,000 emails a month, limited to 200 a day, with 5 days of email reporting and ticket support. Extra emails are not allowed. No credit card needed. |
| MailgunEmail API and SMTP relay for developers, with list validation | Free plan · from $15/mo | 100 emails a day, 1 custom sending domain, 1 user, 1 inbound route, 1 day of logs and ticket support, through the API or SMTP. |
| PostmarkTransactional email API and SMTP, with broadcasts on a separate stream | Free plan · from $15/mo | Free developer plan: 100 emails a month with no expiry and no overages, for testing an integration or a small side project. No credit card needed. |
| ResendDeveloper email API with React Email templates and a free tier | Free plan · from $20/mo | 3,000 transactional emails a month, limited to 100 a day, 3 domains, 3 inboxes, 1 webhook endpoint and 30 days of logs. Marketing email free up to 1,000 contacts. |
| MailjetEmail API, SMTP relay and campaign editor on one plan priced by volume | Free plan · from $8.10/mo | 6,000 emails a month, limited to 200 a day, 1,000 contacts, the API, SMTP relay, webhooks and the email editor. No credit card needed. |
| MailerSendTransactional email and SMS API from the team behind MailerLite | Free plan · from $6.30/mo | 500 emails a month, 1 domain, 1 template, 1 user, 1 webhook and 100 API requests a day. A credit card is needed to subscribe, though nothing is charged. |
| Elastic EmailLow-cost email API and SMTP relay priced by monthly email volume | Free plan · from $19/mo | Up to 3,000 emails a month, limited to 100 a day, with the API, SMTP relay, email designer and 3 days of email logs. No credit card needed. |
| Bird EmailSparkPost's successor: Bird's email API, paid from a prepaid balance | Free plan · from $15/mo | 1,000 emails a month, limited to 50 a day, 1 sending domain, 5 mailboxes and 3 webhook endpoints. Sending stops at the limit. |
| MailtrapEmail API and SMTP for sending, with a sandbox for testing emails | Free plan · from $15/mo | 4,000 emails a month, limited to 150 a day, 1 user, 1 sending domain and 3 days of email logs, through the API or SMTP. |
Common questions
Which email sending services are free?
9 of the 12 email sending services in this directory are free or have a free plan. They are SMTP2GO, Mailgun, Postmark, Resend, Mailjet, MailerSend, Elastic Email, Bird Email and Mailtrap.
When was this checked?
Every listing on this page was checked on Oct 18, 2026, against the pages it cites. Vendors change prices and plans without notice, so confirm on their site before you buy.
This page is built from the listings. A tool is here because its listing says so, and each listing names the pages it was read from.