MailerSend suits teams that need transactional email tools and integrations with listed services.
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Best Email Delivery APIs 2026
This list brings together email delivery APIs for software teams comparing services for sending email. The listed tools operate on the web, via an API or on iOS.
Use the list to compare pricing models, free plans, trials and platform support. Listings follow the page's current order, which can change.
Postmark
Postmark suits developers and teams that need to send and track transactional or broadcast application email.
WebAPIResend Broadcasts
WebAPISMTP2GO
SMTP2GO suits senders needing SMTP relay or API delivery, reporting, webhook events, and integrations.
WebAPIElastic Email
WebBefore you choose
Check platform support
Web, API and iOS options appear in this category. Match the platform listed for a tool with the way you plan to work.
Find a no-cost starting option
Some tools in this category offer a free plan. MailerSend gives users a 14-day trial as another option before payment begins.
Compare pricing models
Brevo Transactional Email, Elastic Email, MailerSend and SMTP2GO are marked as freemium. Bird is listed as free, while SendGrid Email API uses paid pricing with a $19.95 monthly plan.
Published pricing notes list Brevo from $9 per month, Elastic Email from $29, MailerSend from $7 and SMTP2GO from $10.
Review the maker information
Postmark gives Chicago, Illinois as its headquarters and 2010 as its founding year. Resend Broadcasts gives San Francisco, California, United States as its headquarters and 2023 as its founding year.