Email APIs · side by side
Mailjet vs Plunk
Compare Mailjet, Plunk by sending volume, delivery webhooks, inbound email, domain limits and retention.
Email APIs pricing calculator
0
Mailjet
$0 / mo
Free · 0 emails
Plunk
$0 / mo
Pay as you grow · 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 | Mailjet | Plunk |
|---|---|---|
| Provider | Sinch | Plunk |
| Billing unit | emails | emails |
| Plan at selected usage | Free | Pay as you grow |
| Monthly estimate | $0/mo | $0/mo |
| Workload | 0 emails | 0 emails |
| Free access | Free plan includes 6,000 emails per month capped at 200 emails per day, with up to 1,000 contacts, API/SMTP relay access | Developer free allowance |
| Published plans | Free, Starter, Essential, Premium, Custom | Pay as you grow, Free forever |
| Prices checked | 2026-10-08 | 2026-10-08 |
Provider
- Mailjet
- Sinch
- Plunk
- Plunk
Billing unit
- Mailjet
- emails
- Plunk
- emails
Plan at selected usage
- Mailjet
- Free
- Plunk
- Pay as you grow
Monthly estimate
- Mailjet
- $0/mo
- Plunk
- $0/mo
Workload
- Mailjet
- 0 emails
- Plunk
- 0 emails
Free access
- Mailjet
- Free plan includes 6,000 emails per month capped at 200 emails per day, with up to 1,000 contacts, API/SMTP relay access
- Plunk
- Developer free allowance
Published plans
- Mailjet
- Free, Starter, Essential, Premium, Custom
- Plunk
- Pay as you grow, Free forever
Prices checked
- Mailjet
- 2026-10-08
- Plunk
- 2026-10-08
Email APIs monthly cost
Mailjet: $0Plunk: $0
Cost by emails
Cost curve data
| emails | Mailjet | Plunk |
|---|---|---|
| 0 | $0 | $0 |
| 0 | $0 | $0 |
| 0 | $0 | $0 |
| 0 | $0 | $0 |
| 0 | $0 | $0 |
| 0 | $0 | $0 |
| 0 | $0 | $0 |
0
- Mailjet
- $0
- Plunk
- $0
0
- Mailjet
- $0
- Plunk
- $0
0
- Mailjet
- $0
- Plunk
- $0
0
- Mailjet
- $0
- Plunk
- $0
0
- Mailjet
- $0
- Plunk
- $0
0
- Mailjet
- $0
- Plunk
- $0
0
- Mailjet
- $0
- Plunk
- $0
Email APIs feature comparison
| Email APIs | Mailjet | Plunk |
|---|---|---|
| Dedicated IP | Not listed | |
| Advanced Email Editor | Not listed | |
| Email Templates | Not listed | |
| Unlimited Contacts | Not listed | |
| GDPR-Compliant Subscription Forms | Not listed | |
| Integrations | Not listed | |
| MJML | Not listed | |
| No Mailjet Logo | Not listed | |
| Saved, Locked and Linked Sections | Not listed | |
| Landing Pages | Not listed | |
| AI Assisted content creation | Not listed | |
| Personalization | Not listed | |
| Templating Language | Not listed | |
| Segmentation | Not listed | |
| Brand Kit | Not listed | |
| Dynamic Content | Not listed | |
| Automations | Not listed | |
| Custom Unsubscribe Page | Not listed | |
| Preference Center | Not listed | |
| Email Tracking Consent | Not listed | |
| Anonymous Tracking | Not listed | |
| Basic Statistics | Not listed | |
| Webhooks (event API) | Not listed | |
| Advanced Statistics | Not listed | |
| Validations | Not listed | |
| Campaign Comparison | Not listed | |
| A/B Testing | Not listed | |
| Email Previews | Not listed | |
| Monthly Deliverability Reports and Recommendations | Not listed | |
| Send API | Not listed | |
| SMTP Relay | Not listed | |
| Multi-user Access | Not listed | |
| Multi-user Collaboration | Not listed | |
| Advanced permissions | Not listed | |
| Predefined roles | Not listed | |
| Activity Logs | Not listed | |
| Subaccounts | Not listed | |
| Online Customer Support | First Month Only | Not listed |
| Priority Support | Not listed | |
| Phone and Chat Support | Not listed | |
| Dedicated Technical Account Manager | Not listed | |
| Deliverability Services | Not listed | |
| Comprehensive onboarding | Not listed | |
| API Expert | Not listed | |
| Custom deliverability strategy | Not listed | |
| Reputation monitoring | Not listed | |
| Service Level Agreement | Not listed | |
| Deliverability and platform training for your team | Not listed |
Dedicated IP
- Mailjet
- Plunk
- Not listed
Advanced Email Editor
- Mailjet
- Plunk
- Not listed
Email Templates
- Mailjet
- Plunk
- Not listed
Unlimited Contacts
- Mailjet
- Plunk
- Not listed
GDPR-Compliant Subscription Forms
- Mailjet
- Plunk
- Not listed
Integrations
- Mailjet
- Plunk
- Not listed
MJML
- Mailjet
- Plunk
- Not listed
No Mailjet Logo
- Mailjet
- Plunk
- Not listed
Saved, Locked and Linked Sections
- Mailjet
- Plunk
- Not listed
Landing Pages
- Mailjet
- Plunk
- Not listed
AI Assisted content creation
- Mailjet
- Plunk
- Not listed
Personalization
- Mailjet
- Plunk
- Not listed
Templating Language
- Mailjet
- Plunk
- Not listed
Segmentation
- Mailjet
- Plunk
- Not listed
Brand Kit
- Mailjet
- Plunk
- Not listed
Dynamic Content
- Mailjet
- Plunk
- Not listed
Automations
- Mailjet
- Plunk
- Not listed
Custom Unsubscribe Page
- Mailjet
- Plunk
- Not listed
Preference Center
- Mailjet
- Plunk
- Not listed
Email Tracking Consent
- Mailjet
- Plunk
- Not listed
Anonymous Tracking
- Mailjet
- Plunk
- Not listed
Basic Statistics
- Mailjet
- Plunk
- Not listed
Webhooks (event API)
- Mailjet
- Plunk
- Not listed
Advanced Statistics
- Mailjet
- Plunk
- Not listed
Validations
- Mailjet
- Plunk
- Not listed
Campaign Comparison
- Mailjet
- Plunk
- Not listed
A/B Testing
- Mailjet
- Plunk
- Not listed
Email Previews
- Mailjet
- Plunk
- Not listed
Monthly Deliverability Reports and Recommendations
- Mailjet
- Plunk
- Not listed
Send API
- Mailjet
- Plunk
- Not listed
SMTP Relay
- Mailjet
- Plunk
- Not listed
Multi-user Access
- Mailjet
- Plunk
- Not listed
Multi-user Collaboration
- Mailjet
- Plunk
- Not listed
Advanced permissions
- Mailjet
- Plunk
- Not listed
Predefined roles
- Mailjet
- Plunk
- Not listed
Activity Logs
- Mailjet
- Plunk
- Not listed
Subaccounts
- Mailjet
- Plunk
- Not listed
Online Customer Support
- Mailjet
- First Month Only
- Plunk
- Not listed
Priority Support
- Mailjet
- Plunk
- Not listed
Phone and Chat Support
- Mailjet
- Plunk
- Not listed
Dedicated Technical Account Manager
- Mailjet
- Plunk
- Not listed
Deliverability Services
- Mailjet
- Plunk
- Not listed
Comprehensive onboarding
- Mailjet
- Plunk
- Not listed
API Expert
- Mailjet
- Plunk
- Not listed
Custom deliverability strategy
- Mailjet
- Plunk
- Not listed
Reputation monitoring
- Mailjet
- Plunk
- Not listed
Service Level Agreement
- Mailjet
- Plunk
- Not listed
Deliverability and platform training for your team
- Mailjet
- Plunk
- Not listed
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Which email providers fit your needs?
Mailjet features & plan notes
- Send transactional and marketing emails via Send API v3.1 or SMTP relay
- Real-time event webhooks for opens, clicks, bounces, spam complaints, and blocks
- Responsive email builder with support for MJML open-source markup
- Contact list management, email address validations, and inbox preview testing
- 1,000 contacts
- APIs, SMTP Relay, Webhooks
- Advanced Email Editor
- Basic Statistics
- Form Builder
- Email Tracking Consent
Plunk features & plan notes
- Open source
- Simple API
- AWS SES infrastructure
- Everything in Free
- No Plunk branding
- Monthly spend cap
- Unlimited emails
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