# Email delivery APIs compared head to head > 91 head-to-head comparisons of email delivery APIs for AI agents, grouped by the job each pair shares, with benchmark scores for both sides. - Canonical: https://www.anchorterminal.com/compare/email/ - Markdown: https://www.anchorterminal.com/compare/email/index.md (~3,500 tokens) - Slim: https://www.anchorterminal.com/compare/email/index.min.md (~3,430 tokens, same facts, less prose, for token-sensitive contexts) - JSON: https://www.anchorterminal.com/compare/email/index.json (this page as data, same URL with Accept: application/json) - Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt) - API: https://www.anchorterminal.com/api/v1/index.json - Updated: 2026-10-08 - Ranked table: https://www.anchorterminal.com/categories/email.md - Shortlist and picks by need: https://www.anchorterminal.com/best/email/index.md ## Ranked 1. [Amazon SES](https://www.anchorterminal.com/tools/amazon-ses.md) BB 75.1 2. [Resend API + MCP](https://www.anchorterminal.com/tools/resend.md) BB 75.1 3. [MailerSend](https://www.anchorterminal.com/tools/mailersend.md) B 69.5 4. [Cloudflare Email Service](https://www.anchorterminal.com/tools/cloudflare-email-service.md) B 67.3 5. [Mailtrap Email API + MCP](https://www.anchorterminal.com/tools/mailtrap.md) B 66.8 6. [Postmark API + MCP](https://www.anchorterminal.com/tools/postmark.md) B 66.5 7. [Mailgun API + MCP](https://www.anchorterminal.com/tools/mailgun.md) B 66.2 8. [Twilio SendGrid](https://www.anchorterminal.com/tools/sendgrid.md) B 63.6 9. [Loops API + MCP](https://www.anchorterminal.com/tools/loops.md) B 62.7 10. [Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/tools/zoho-zeptomail.md) C 61.8 11. [Mailjet API + MCP](https://www.anchorterminal.com/tools/mailjet.md) C 59.4 12. [Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/tools/mandrill.md) C 58.1 13. [SMTP2GO API + MCP](https://www.anchorterminal.com/tools/smtp2go.md) D 53.1 14. [Brevo API + MCP](https://www.anchorterminal.com/tools/brevo.md) E 44.8 ## Sending email - [Amazon SES vs Brevo API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-brevo.md): BB 75.1 vs E 44.8 - [Amazon SES vs Cloudflare Email Service](https://www.anchorterminal.com/compare/amazon-ses-vs-cloudflare-email-service.md): BB 75.1 vs B 67.3 - [Amazon SES vs Loops API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-loops.md): BB 75.1 vs B 62.7 - [Amazon SES vs MailerSend](https://www.anchorterminal.com/compare/amazon-ses-vs-mailersend.md): BB 75.1 vs B 69.5 - [Amazon SES vs Mailgun API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-mailgun.md): BB 75.1 vs B 66.2 - [Amazon SES vs Mailjet API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-mailjet.md): BB 75.1 vs C 59.4 - [Amazon SES vs Mailtrap Email API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-mailtrap.md): BB 75.1 vs B 66.8 - [Amazon SES vs Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/compare/amazon-ses-vs-mandrill.md): BB 75.1 vs C 58.1 - [Amazon SES vs Postmark API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-postmark.md): BB 75.1 vs B 66.5 - [Amazon SES vs Resend API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-resend.md): BB 75.1 vs BB 75.1 - [Amazon SES vs Twilio SendGrid](https://www.anchorterminal.com/compare/amazon-ses-vs-sendgrid.md): BB 75.1 vs B 63.6 - [Amazon SES vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-smtp2go.md): BB 75.1 vs D 53.1 - [Amazon SES vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/amazon-ses-vs-zoho-zeptomail.md): BB 75.1 vs C 61.8 - [Brevo API + MCP vs Cloudflare Email Service](https://www.anchorterminal.com/compare/brevo-vs-cloudflare-email-service.md): E 44.8 vs B 67.3 - [Brevo API + MCP vs Loops API + MCP](https://www.anchorterminal.com/compare/brevo-vs-loops.md): E 44.8 vs B 62.7 - [Brevo API + MCP vs MailerSend](https://www.anchorterminal.com/compare/brevo-vs-mailersend.md): E 44.8 vs B 69.5 - [Brevo API + MCP vs Mailgun API + MCP](https://www.anchorterminal.com/compare/brevo-vs-mailgun.md): E 44.8 vs B 66.2 - [Brevo API + MCP vs Mailjet API + MCP](https://www.anchorterminal.com/compare/brevo-vs-mailjet.md): E 44.8 vs C 59.4 - [Brevo API + MCP vs Mailtrap Email API + MCP](https://www.anchorterminal.com/compare/brevo-vs-mailtrap.md): E 44.8 vs B 66.8 - [Brevo API + MCP vs Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/compare/brevo-vs-mandrill.md): E 44.8 vs C 58.1 - [Brevo API + MCP vs Postmark API + MCP](https://www.anchorterminal.com/compare/brevo-vs-postmark.md): E 44.8 vs B 66.5 - [Brevo API + MCP vs Resend API + MCP](https://www.anchorterminal.com/compare/brevo-vs-resend.md): E 44.8 vs BB 75.1 - [Brevo API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/brevo-vs-sendgrid.md): E 44.8 vs B 63.6 - [Brevo API + MCP vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/brevo-vs-smtp2go.md): E 44.8 vs D 53.1 - [Brevo API + MCP vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/brevo-vs-zoho-zeptomail.md): E 44.8 vs C 61.8 - [Cloudflare Email Service vs Loops API + MCP](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-loops.md): B 67.3 vs B 62.7 - [Cloudflare Email Service vs MailerSend](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-mailersend.md): B 67.3 vs B 69.5 - [Cloudflare Email Service vs Mailgun API + MCP](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-mailgun.md): B 67.3 vs B 66.2 - [Cloudflare Email Service vs Mailjet API + MCP](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-mailjet.md): B 67.3 vs C 59.4 - [Cloudflare Email Service vs Mailtrap Email API + MCP](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-mailtrap.md): B 67.3 vs B 66.8 - [Cloudflare Email Service vs Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-mandrill.md): B 67.3 vs C 58.1 - [Cloudflare Email Service vs Postmark API + MCP](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-postmark.md): B 67.3 vs B 66.5 - [Cloudflare Email Service vs Resend API + MCP](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-resend.md): B 67.3 vs BB 75.1 - [Cloudflare Email Service vs Twilio SendGrid](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-sendgrid.md): B 67.3 vs B 63.6 - [Cloudflare Email Service vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-smtp2go.md): B 67.3 vs D 53.1 - [Cloudflare Email Service vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-zoho-zeptomail.md): B 67.3 vs C 61.8 - [Loops API + MCP vs MailerSend](https://www.anchorterminal.com/compare/loops-vs-mailersend.md): B 62.7 vs B 69.5 - [Loops API + MCP vs Mailgun API + MCP](https://www.anchorterminal.com/compare/loops-vs-mailgun.md): B 62.7 vs B 66.2 - [Loops API + MCP vs Mailjet API + MCP](https://www.anchorterminal.com/compare/loops-vs-mailjet.md): B 62.7 vs C 59.4 - [Loops API + MCP vs Mailtrap Email API + MCP](https://www.anchorterminal.com/compare/loops-vs-mailtrap.md): B 62.7 vs B 66.8 - [Loops API + MCP vs Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/compare/loops-vs-mandrill.md): B 62.7 vs C 58.1 - [Loops API + MCP vs Postmark API + MCP](https://www.anchorterminal.com/compare/loops-vs-postmark.md): B 62.7 vs B 66.5 - [Loops API + MCP vs Resend API + MCP](https://www.anchorterminal.com/compare/loops-vs-resend.md): B 62.7 vs BB 75.1 - [Loops API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/loops-vs-sendgrid.md): B 62.7 vs B 63.6 - [Loops API + MCP vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/loops-vs-smtp2go.md): B 62.7 vs D 53.1 - [Loops API + MCP vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/loops-vs-zoho-zeptomail.md): B 62.7 vs C 61.8 - [MailerSend vs Mailgun API + MCP](https://www.anchorterminal.com/compare/mailersend-vs-mailgun.md): B 69.5 vs B 66.2 - [MailerSend vs Mailjet API + MCP](https://www.anchorterminal.com/compare/mailersend-vs-mailjet.md): B 69.5 vs C 59.4 - [MailerSend vs Mailtrap Email API + MCP](https://www.anchorterminal.com/compare/mailersend-vs-mailtrap.md): B 69.5 vs B 66.8 - [MailerSend vs Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/compare/mailersend-vs-mandrill.md): B 69.5 vs C 58.1 - [MailerSend vs Postmark API + MCP](https://www.anchorterminal.com/compare/mailersend-vs-postmark.md): B 69.5 vs B 66.5 - [MailerSend vs Resend API + MCP](https://www.anchorterminal.com/compare/mailersend-vs-resend.md): B 69.5 vs BB 75.1 - [MailerSend vs Twilio SendGrid](https://www.anchorterminal.com/compare/mailersend-vs-sendgrid.md): B 69.5 vs B 63.6 - [MailerSend vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/mailersend-vs-smtp2go.md): B 69.5 vs D 53.1 - [MailerSend vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/mailersend-vs-zoho-zeptomail.md): B 69.5 vs C 61.8 - [Mailgun API + MCP vs Mailjet API + MCP](https://www.anchorterminal.com/compare/mailgun-vs-mailjet.md): B 66.2 vs C 59.4 - [Mailgun API + MCP vs Mailtrap Email API + MCP](https://www.anchorterminal.com/compare/mailgun-vs-mailtrap.md): B 66.2 vs B 66.8 - [Mailgun API + MCP vs Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/compare/mailgun-vs-mandrill.md): B 66.2 vs C 58.1 - [Mailgun API + MCP vs Postmark API + MCP](https://www.anchorterminal.com/compare/mailgun-vs-postmark.md): B 66.2 vs B 66.5 - [Mailgun API + MCP vs Resend API + MCP](https://www.anchorterminal.com/compare/mailgun-vs-resend.md): B 66.2 vs BB 75.1 - [Mailgun API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/mailgun-vs-sendgrid.md): B 66.2 vs B 63.6 - [Mailgun API + MCP vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/mailgun-vs-smtp2go.md): B 66.2 vs D 53.1 - [Mailgun API + MCP vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/mailgun-vs-zoho-zeptomail.md): B 66.2 vs C 61.8 - [Mailjet API + MCP vs Mailtrap Email API + MCP](https://www.anchorterminal.com/compare/mailjet-vs-mailtrap.md): C 59.4 vs B 66.8 - [Mailjet API + MCP vs Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/compare/mailjet-vs-mandrill.md): C 59.4 vs C 58.1 - [Mailjet API + MCP vs Postmark API + MCP](https://www.anchorterminal.com/compare/mailjet-vs-postmark.md): C 59.4 vs B 66.5 - [Mailjet API + MCP vs Resend API + MCP](https://www.anchorterminal.com/compare/mailjet-vs-resend.md): C 59.4 vs BB 75.1 - [Mailjet API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/mailjet-vs-sendgrid.md): C 59.4 vs B 63.6 - [Mailjet API + MCP vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/mailjet-vs-smtp2go.md): C 59.4 vs D 53.1 - [Mailjet API + MCP vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/mailjet-vs-zoho-zeptomail.md): C 59.4 vs C 61.8 - [Mailtrap Email API + MCP vs Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/compare/mailtrap-vs-mandrill.md): B 66.8 vs C 58.1 - [Mailtrap Email API + MCP vs Postmark API + MCP](https://www.anchorterminal.com/compare/mailtrap-vs-postmark.md): B 66.8 vs B 66.5 - [Mailtrap Email API + MCP vs Resend API + MCP](https://www.anchorterminal.com/compare/mailtrap-vs-resend.md): B 66.8 vs BB 75.1 - [Mailtrap Email API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/mailtrap-vs-sendgrid.md): B 66.8 vs B 63.6 - [Mailtrap Email API + MCP vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/mailtrap-vs-smtp2go.md): B 66.8 vs D 53.1 - [Mailtrap Email API + MCP vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/mailtrap-vs-zoho-zeptomail.md): B 66.8 vs C 61.8 - [Mailchimp Transactional (Mandrill) vs Postmark API + MCP](https://www.anchorterminal.com/compare/mandrill-vs-postmark.md): C 58.1 vs B 66.5 - [Mailchimp Transactional (Mandrill) vs Resend API + MCP](https://www.anchorterminal.com/compare/mandrill-vs-resend.md): C 58.1 vs BB 75.1 - [Mailchimp Transactional (Mandrill) vs Twilio SendGrid](https://www.anchorterminal.com/compare/mandrill-vs-sendgrid.md): C 58.1 vs B 63.6 - [Mailchimp Transactional (Mandrill) vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/mandrill-vs-smtp2go.md): C 58.1 vs D 53.1 - [Mailchimp Transactional (Mandrill) vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/mandrill-vs-zoho-zeptomail.md): C 58.1 vs C 61.8 - [Postmark API + MCP vs Resend API + MCP](https://www.anchorterminal.com/compare/postmark-vs-resend.md): B 66.5 vs BB 75.1 - [Postmark API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/postmark-vs-sendgrid.md): B 66.5 vs B 63.6 - [Postmark API + MCP vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/postmark-vs-smtp2go.md): B 66.5 vs D 53.1 - [Postmark API + MCP vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/postmark-vs-zoho-zeptomail.md): B 66.5 vs C 61.8 - [Resend API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/resend-vs-sendgrid.md): BB 75.1 vs B 63.6 - [Resend API + MCP vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/resend-vs-smtp2go.md): BB 75.1 vs D 53.1 - [Resend API + MCP vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/resend-vs-zoho-zeptomail.md): BB 75.1 vs C 61.8 - [Twilio SendGrid vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/sendgrid-vs-smtp2go.md): B 63.6 vs D 53.1 - [Twilio SendGrid vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/sendgrid-vs-zoho-zeptomail.md): B 63.6 vs C 61.8 - [SMTP2GO API + MCP vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/smtp2go-vs-zoho-zeptomail.md): D 53.1 vs C 61.8