How do Mailtrap and Resend prices compare?

Mailtrap: $85/month on Email API/SMTP - Business at 100,000 emails. Resend: $90/month on Scale at 100,000 emails. Different billing units are not an equal-workload comparison. Estimates exclude unlisted add-ons and taxes.

What matters for transactional email?

Review SMTP or API integration, domain authentication, bounce and complaint events, suppression handling and delivery-log retention.

Can I compare marketing and agent email by sends?

Only when the published plan actually bills by sends. Contacts, subscribers and inboxes stay in their own billing units.

What features and free access does Mailtrap list?

Email sandbox, Sending API, Detailed logs. Free access: Limited free plan. Check plan-specific availability and current terms on the provider's official pricing page.

What features and free access does Resend list?

React Email, Simple API, Webhooks. Free access: 3,000 emails/mo. Check plan-specific availability and current terms on the provider's official pricing page.

Email APIs · side by side

Mailtrap vs Resend

Compare Mailtrap, Resend by sending volume, delivery webhooks, inbound email, domain limits and retention.

Email APIs pricing calculator

Monthly emails

100K

Mailtrap

$85 / mo

Email API/SMTP - Business · 100K emails

Resend

$90 / mo

Scale · 100K emails

Listed USD plan fees and tracked usage only. Unlisted compute, transfer, extras, taxes and contract terms are excluded. Custom or unsupported plan usage is not estimated.

Email APIs overview & pricing

Email APIs	Mailtrap	Resend
Provider	Railsware	Resend
Billing unit	emails	emails
Plan at selected usage	Email API/SMTP - Business	Scale
Monthly estimate	$85/mo	$90/mo
Workload	100K emails	100K emails
Free access	Limited free plan	3,000 emails/mo
Published plans	Email API/SMTP - Free, Email Sandbox - Free, Email Marketing - Free, Email API/SMTP - Basic, Email Marketing - Essential, Email Sandbox - Basic, Email Sandbox - Team, Email Marketing - Pro, Email API/SMTP - Business, Email Sandbox - Business, Email Sandbox - Enterprise, Email API/SMTP - Enterprise	Free, Pro, Scale, Enterprise
Prices checked	2026-10-08	2026-10-08

Provider

Mailtrap: Railsware
Resend: Resend

Billing unit

Mailtrap: emails
Resend: emails

Plan at selected usage

Mailtrap: Email API/SMTP - Business
Resend: Scale

Monthly estimate

Mailtrap: $85/mo
Resend: $90/mo

Workload

Mailtrap: 100K emails
Resend: 100K emails

Free access

Mailtrap: Limited free plan
Resend: 3,000 emails/mo

Published plans

Mailtrap: Email API/SMTP - Free, Email Sandbox - Free, Email Marketing - Free, Email API/SMTP - Basic, Email Marketing - Essential, Email Sandbox - Basic, Email Sandbox - Team, Email Marketing - Pro, Email API/SMTP - Business, Email Sandbox - Business, Email Sandbox - Enterprise, Email API/SMTP - Enterprise
Resend: Free, Pro, Scale, Enterprise

Prices checked

Mailtrap: 2026-10-08
Resend: 2026-10-08

Email APIs monthly cost

Mailtrap: $85Resend: $90

Cost by emails

Cost curve data

emails	Mailtrap	Resend
0	$498	$0
25K	$15	$20
50K	$123	$20
100K	$85	$90
200K	$750	$155
500K	$750	$425
1M	$750	$875

Mailtrap: $498
Resend: $0

25K

Mailtrap: $15
Resend: $20

50K

Mailtrap: $123
Resend: $20

100K

Mailtrap: $85
Resend: $90

200K

Mailtrap: $750
Resend: $155

500K

Mailtrap: $750
Resend: $425

Mailtrap: $750
Resend: $875

Email APIs feature comparison

Email APIs	Mailtrap	Resend
Sending methods	Not listed	Not listed
Inbound processing	Not listed	Not listed
Sending domains	Not listed	Not listed
Activity retention	Not listed	Not listed
Webhooks & events	Not listed	Not listed
Dedicated IP	Not listed	Not listed
Single sign-on	Not listed	With add-on
Support	Not listed	Not listed
Emails/day	Not listed	Not listed
Emails/month	Not listed	Not listed
Domains	Not listed	Not listed
Extra emails (cost per 1,000)	Not listed	Not listed
API and SMTP relay	Not listed	Not listed
Inbound email	Not listed	Not listed
Email log retention (days)	Not listed	Not listed
Email body retention (days)	Not listed	Not listed
Webhooks	Not listed	Not listed
Templates	Not listed	Not listed
Auto BCC	Not listed	Not listed
Bulk stream	Not listed	Not listed
API access	Not listed	Not listed
SDKs	Not listed	Not listed
Max email size	Not listed	Not listed
SPF, DKIM, DMARC	Not listed	Not listed
Auto warm-up	Not listed	Not listed
Email throttling	Not listed	Not listed
Suppressions management	Not listed	Not listed
Reputation monitoring	Not listed	Not listed
Bounce categorization	Not listed	Not listed
ISP feedback loop data	Not listed	Not listed
SaaS safeguard	Not listed	Not listed
Open rate tracking	Not listed	Not listed
Click rate tracking	Not listed	Not listed
Deliverability analytics	Not listed	Not listed
Separate stats for each mailbox provider	Not listed	Not listed
HTTPS link branding	Not listed	Not listed
User management	Not listed	Not listed
Users	Not listed	Not listed
2FA	Not listed	Not listed
SSO	Not listed	Not listed
Organization & Sub-accounts	Not listed	Not listed
Audit logs	Not listed	Not listed
GDPR compliance	Not listed
ISO 27001	Not listed	Not listed
SOC 2 Type 2	Not listed	Not listed
API key permissions	Not listed
IP whitelisting	Not listed	Not listed
Content-free logging	Not listed	Not listed
Support options	Not listed	Not listed
Support availability	Not listed	Not listed
Priority support	Not listed	Not listed
Deliverability expert assistance	Not listed	Not listed
Migration assistance	Not listed	Not listed
Daily limit	Not listed	No limit
Inbound emails	Not listed
RESTful API	Not listed
SMTP relay	Not listed
Official SDKs	Not listed
Schedule emails	Not listed
Batch sending	Not listed
Open tracking	Not listed
Link tracking	Not listed
React Email	Not listed
Custom domains	Not listed	1,000
Additional domains	Not listed	With add-on
Dedicated IPs	Not listed	With add-on
Dedicated IP warming	Not listed
Pristine shared IPs	Not listed
Automatic suppression list	Not listed
Bounce details	Not listed
Multi-region	Not listed
Data retention	Not listed	30 days
Deliverability insights	Not listed
DKIM, SPF, DMARC authentication	Not listed
Webhook endpoints	Not listed	10 endpoints
Webhook events	Not listed	All events
Social login	Not listed
SOC 2 Type II certification	Not listed
Penetration testing	Not listed
DDoS protection	Not listed
Automated backups	Not listed
Multi-factor authentication	Not listed
Signed webhook endpoints	Not listed
Ticket support	Not listed
Slack support	Not listed
Urgent response SLA	Not listed
Deliverability expertise	Not listed
In-app documentation	Not listed
AI assistant	Not listed
AI credits / mo	Not listed	500

Sending methods

Mailtrap: Not listed
Resend: Not listed

Inbound processing

Mailtrap: Not listed
Resend: Not listed

Sending domains

Mailtrap: Not listed
Resend: Not listed

Activity retention

Mailtrap: Not listed
Resend: Not listed

Webhooks & events

Mailtrap: Not listed
Resend: Not listed

Dedicated IP

Mailtrap: Not listed
Resend: Not listed

Single sign-on

Mailtrap: Not listed
Resend: With add-on

Support

Mailtrap: Not listed
Resend: Not listed

Emails/day

Mailtrap: Not listed
Resend: Not listed

Emails/month

Mailtrap: Not listed
Resend: Not listed

Domains

Mailtrap: Not listed
Resend: Not listed

Extra emails (cost per 1,000)

Mailtrap: Not listed
Resend: Not listed

API and SMTP relay

Mailtrap: Not listed
Resend: Not listed

Inbound email

Mailtrap: Not listed
Resend: Not listed

Email log retention (days)

Mailtrap: Not listed
Resend: Not listed

Showing 15 of 90

Which email providers fit your needs?

Mailtrap features & plan notes

Email sandbox
Sending API
Detailed logs
100,000 emails ($85/mo), 250,000 emails ($200/mo), 500,000 emails ($300/mo), or 750,000 emails ($450/mo)
100 users
15 days of email logs
100 domains
Dedicated IP
Extra emails: $0,88 per 1,000

Full pricing Official Pricing

Resend features & plan notes

React Email
Simple API
Webhooks
All Pro features
1,000 domains
Dedicated Slack channel
10 webhook endpoints
500 AI credits / mo
SSO with add-on
Dedicated IP with add-on

Full pricing Official Pricing

How to compare email providers

Separate transactional delivery from campaigns, outreach and agent inboxes. Compare monthly sends and daily caps; contacts, seats and inboxes are not sending allowances. Budget separately for dedicated IPs, validation and attachments.

Browse Email APIs pricing

Mailtrap vs Resend — FAQ

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