Email APIs · side by side
Inboxroad vs Resend
Compare Inboxroad, Resend by sending volume, delivery webhooks, inbound email, domain limits and retention.
Email APIs pricing calculator
0
Inboxroad
Custom / not listed
No priced plan for this volume · 0 emails
Resend
$0 / mo
Free · 0 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 | Inboxroad | Resend |
|---|---|---|
| Provider | Inboxroad B.V. | Resend |
| Billing unit | emails | emails |
| Plan at selected usage | No priced plan for this volume | Free |
| Monthly estimate | Custom / not listed | $0/mo |
| Workload | 0 emails | 0 emails |
| Free access | 1,000 free emails per month | 3,000 emails/mo |
| Published plans | SMTP, Email, Email Pro | Free, Pro, Scale, Enterprise |
| Prices checked | 2026-10-08 | 2026-10-08 |
Provider
- Inboxroad
- Inboxroad B.V.
- Resend
- Resend
Billing unit
- Inboxroad
- emails
- Resend
- emails
Plan at selected usage
- Inboxroad
- No priced plan for this volume
- Resend
- Free
Monthly estimate
- Inboxroad
- Custom / not listed
- Resend
- $0/mo
Workload
- Inboxroad
- 0 emails
- Resend
- 0 emails
Free access
- Inboxroad
- 1,000 free emails per month
- Resend
- 3,000 emails/mo
Published plans
- Inboxroad
- SMTP, Email, Email Pro
- Resend
- Free, Pro, Scale, Enterprise
Prices checked
- Inboxroad
- 2026-10-08
- Resend
- 2026-10-08
Email APIs monthly cost
Inboxroad: Not pricedResend: $0
Cost by emails
Cost curve data
| emails | Inboxroad | Resend |
|---|---|---|
| 0 | Not priced | $0 |
| 0 | Not priced | $0 |
| 0 | Not priced | $0 |
| 0 | Not priced | $0 |
| 0 | Not priced | $0 |
| 0 | Not priced | $0 |
| 0 | Not priced | $0 |
0
- Inboxroad
- Not priced
- Resend
- $0
0
- Inboxroad
- Not priced
- Resend
- $0
0
- Inboxroad
- Not priced
- Resend
- $0
0
- Inboxroad
- Not priced
- Resend
- $0
0
- Inboxroad
- Not priced
- Resend
- $0
0
- Inboxroad
- Not priced
- Resend
- $0
0
- Inboxroad
- Not priced
- Resend
- $0
Email APIs feature comparison
| Email APIs | Inboxroad | Resend |
|---|---|---|
| Single sign-on | Not listed | |
| Daily limit | Not listed | 100 |
| 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 | 3 |
| Additional domains | Not listed | |
| Dedicated IPs | Not listed | |
| 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 | 1 endpoint |
| Webhook events | Not listed | All events |
| Social login | Not listed | |
| GDPR compliance | 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 | |
| API key permissions | 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 | 5 |
Single sign-on
- Inboxroad
- Not listed
- Resend
Daily limit
- Inboxroad
- Not listed
- Resend
- 100
Inbound emails
- Inboxroad
- Not listed
- Resend
RESTful API
- Inboxroad
- Not listed
- Resend
SMTP relay
- Inboxroad
- Not listed
- Resend
Official SDKs
- Inboxroad
- Not listed
- Resend
Schedule emails
- Inboxroad
- Not listed
- Resend
Batch sending
- Inboxroad
- Not listed
- Resend
Open tracking
- Inboxroad
- Not listed
- Resend
Link tracking
- Inboxroad
- Not listed
- Resend
React Email
- Inboxroad
- Not listed
- Resend
Custom domains
- Inboxroad
- Not listed
- Resend
- 3
Additional domains
- Inboxroad
- Not listed
- Resend
Dedicated IPs
- Inboxroad
- Not listed
- Resend
Dedicated IP warming
- Inboxroad
- Not listed
- Resend
Pristine shared IPs
- Inboxroad
- Not listed
- Resend
Automatic suppression list
- Inboxroad
- Not listed
- Resend
Bounce details
- Inboxroad
- Not listed
- Resend
Multi-region
- Inboxroad
- Not listed
- Resend
Data retention
- Inboxroad
- Not listed
- Resend
- 30 days
Deliverability insights
- Inboxroad
- Not listed
- Resend
DKIM, SPF, DMARC authentication
- Inboxroad
- Not listed
- Resend
Webhook endpoints
- Inboxroad
- Not listed
- Resend
- 1 endpoint
Webhook events
- Inboxroad
- Not listed
- Resend
- All events
Social login
- Inboxroad
- Not listed
- Resend
GDPR compliance
- Inboxroad
- Not listed
- Resend
SOC 2 Type II certification
- Inboxroad
- Not listed
- Resend
Penetration testing
- Inboxroad
- Not listed
- Resend
DDoS protection
- Inboxroad
- Not listed
- Resend
Automated backups
- Inboxroad
- Not listed
- Resend
Multi-factor authentication
- Inboxroad
- Not listed
- Resend
API key permissions
- Inboxroad
- Not listed
- Resend
Signed webhook endpoints
- Inboxroad
- Not listed
- Resend
Ticket support
- Inboxroad
- Not listed
- Resend
Slack support
- Inboxroad
- Not listed
- Resend
Urgent response SLA
- Inboxroad
- Not listed
- Resend
Deliverability expertise
- Inboxroad
- Not listed
- Resend
In-app documentation
- Inboxroad
- Not listed
- Resend
AI assistant
- Inboxroad
- Not listed
- Resend
AI credits / mo
- Inboxroad
- Not listed
- Resend
- 5
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Which email providers fit your needs?
Inboxroad features & plan notes
- SMTP relay and REST APIs for marketing and transactional emails
- Dedicated IP addresses with automated IP warm-up schedules
- Per-ISP send-rate controls and integrated Feedback Loops (FBLs)
- Drag-and-drop campaign email builder and HTML editor
- Real-time event webhooks and delivery monitoring
Resend features & plan notes
- React Email
- Simple API
- Webhooks
- 100 emails a day
- 3 domains
- Ticket support
- 10,000 automation runs
- 30-day data retention
- Single Sign-On
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