Plunk alternatives

At a glance

We list 8 other transactional email tools as alternatives to Plunk: Amazon SES, Brevo, MailerSend, Mailgun, Mailtrap, Postmark, Resend and SendGrid.
Brevo, MailerSend, Mailgun, Mailtrap, Postmark and Resend have a free plan.

From each tool's own website and from published reviews. Each tool's page says when its facts were checked.

8 alternatives

Listed alphabetically. A tool is ranked by its reviews once it has 3.

Amazon SES
Optimize your email communication with reliable, scalable, and secure solutions at competitive prices
No reviews yet
No checked fact sets it apart from Plunk yet.
Paid plans from
Essentials, $0.16 per 1,000 emails, for up to 10 million emails a month (as of October 20, 2026)
Platforms
API, SMTP
Main features
Virtual Deliverability Manager, Mail Manager, Managed dedicated IPs
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Brevo
One AI-powered customer platform for all your marketing and sales needs
No reviews yet
Choose it over Plunk for: ISO 27001 or SSO.
Free plan
Yes
Platforms
API
Main features
Marketing automation, Transactional messaging, SMS marketing
Security and compliance
ISO 27001, GDPR, SSO
Be the first to review
MailerSend
Team-friendly email API for modern apps
No reviews yet
Choose it over Plunk for: ISO 27001 or SSO.
Free plan
Yes
Paid plans from
Professional, $99.00 per month, billed yearly (as of October 20, 2026)
Platforms
API, SMTP
Main features
Email API, SMTP relay, Inbound email routing
Security and compliance
ISO 27001, GDPR, SSO
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Be the first to review
Mailgun
Transactional email delivery service and API for developers
No reviews yet
Choose it over Plunk for: SOC 2, ISO 27001, HIPAA or SSO.
Free plan
Yes
Paid plans from
Basic, $15 per month for 10,000 emails (as of October 20, 2026)
Platforms
API, SMTP
Main features
Email API and SMTP relay, Inbound routing, Email validation
Security and compliance
SOC 2, ISO 27001, GDPR, HIPAA, SSO
Compare with Plunk
Be the first to review
Mailtrap
Modern email delivery for developer and product teams
No reviews yet
Choose it over Plunk for: SOC 2, ISO 27001 or SSO.
Free plan
Yes
Paid plans from
Basic, $15 per month for 10,000 emails (as of October 20, 2026)
Platforms
API, SMTP
Main features
Email API and SMTP, Email Sandbox, Email Marketing
Security and compliance
SOC 2, ISO 27001, GDPR, SSO
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Postmark
The email delivery service that people actually like
No reviews yet
No checked fact sets it apart from Plunk yet.
Free plan
Yes
Paid plans from
Basic, $15.00 per month for 10,000 emails (as of October 20, 2026)
Free trial
Yes
Platforms
API, SMTP
Main features
Email API, SMTP service, Message streams
Security and compliance
GDPR
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Resend
Email for developers
No reviews yet
Choose it over Plunk for: SOC 2 or SSO.
Free plan
Yes
Paid plans from
Pro, $20 per month for 50,000 emails (as of October 20, 2026)
Platforms
API, SMTP
Main features
Transactional emails, Marketing emails, Inbound emails
Security and compliance
SOC 2, GDPR, SSO
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Be the first to review
SendGrid
Create, send, and manage emails at scale through RESTful APIs or SMTP relay
No reviews yet
Choose it over Plunk for: SOC 2 or SSO.
Paid plans from
Essentials, $19.95 per month, starting price, for 50,000 to 100,000 emails (as of October 20, 2026)
Free trial
60 days
Platforms
API, SMTP
Main features
Email API, SMTP relay, Dynamic email templates
Security and compliance
SOC 2, GDPR, SSO
Compare with Plunk
Be the first to review