Email APIs · side by side
Klaviyo vs Maileroo
Compare Klaviyo, Maileroo by sending volume, delivery webhooks, inbound email, domain limits and retention.
Email APIs pricing calculator
These providers bill in different units. Each estimate uses its own workload; there is no same-volume price winner.
Klaviyo
10K
Maileroo
100K
Klaviyo
Custom / not listed
Custom / unlisted usage pricing · 10K profiles
Maileroo
$30 / mo
Premium · 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 | Klaviyo | Maileroo |
|---|---|---|
| Provider | Klaviyo | Maileroo |
| Billing unit | profiles | emails |
| Plan at selected usage | Custom / unlisted usage pricing | Premium |
| Monthly estimate | Custom / not listed | $30/mo |
| Workload | 10K profiles | 100K emails |
| Free access | Limited free plan | Limited free plan |
| Published plans | Free | Free, Basic, Starter, Premium, Pro, Ultimate, Enterprise |
| Prices checked | 2026-10-08 | 2026-10-08 |
Provider
- Klaviyo
- Klaviyo
- Maileroo
- Maileroo
Billing unit
- Klaviyo
- profiles
- Maileroo
- emails
Plan at selected usage
- Klaviyo
- Custom / unlisted usage pricing
- Maileroo
- Premium
Monthly estimate
- Klaviyo
- Custom / not listed
- Maileroo
- $30/mo
Workload
- Klaviyo
- 10K profiles
- Maileroo
- 100K emails
Free access
- Klaviyo
- Limited free plan
- Maileroo
- Limited free plan
Published plans
- Klaviyo
- Free
- Maileroo
- Free, Basic, Starter, Premium, Pro, Ultimate, Enterprise
Prices checked
- Klaviyo
- 2026-10-08
- Maileroo
- 2026-10-08
Email APIs monthly cost
Klaviyo: Not pricedMaileroo: $30
Different workloads, separate estimates
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.
Email APIs feature comparison
| Email APIs | Klaviyo | Maileroo |
|---|---|---|
| Sending domains | Not listed | ∞ |
| Dedicated IP | Not listed | |
| Outbound Emails/Month | Not listed | 100,000 |
| SMTP Relay | Not listed | |
| RESTful Email API | Not listed | |
| Streams | Not listed | |
| Sandbox Domain | Not listed | |
| Automatic IP Warmup | Not listed | |
| Bounce Handling & Classification | Not listed | |
| Complaint Handling | Not listed | |
| Suppression Handling | Not listed | |
| Resend From Logs | Not listed | |
| Inbound Emails/Month | Not listed | 100,000 |
| Custom Expression Rules | Not listed | |
| Catch-All, Wildcard & Regex Matching | Not listed | |
| Email Forwarders | Not listed | |
| Parsed JSON Webhooks | Not listed | |
| Automatic Retries | Not listed | |
| SPF, DKIM & DMARC Enforcement | Not listed | |
| Spam Checking | Not listed | |
| Route Priority & Stop Rules | Not listed | |
| Test Emails/Month | Not listed | 10,000 |
| SMTP Sinks | Not listed | 50 |
| Inboxes | Not listed | 100 |
| AI Analyses | Not listed | 2,000 |
| Trigger Actions | Not listed | |
| Magic Addresses | Not listed | |
| Client Previews (Light & Dark) | Not listed | |
| Spam Scoring | Not listed | |
| Auth & Alignment Checks | Not listed | |
| Link & RBL Checks | Not listed | |
| API & CI/CD | Not listed |
Sending domains
- Klaviyo
- Not listed
- Maileroo
- ∞
Dedicated IP
- Klaviyo
- Not listed
- Maileroo
Outbound Emails/Month
- Klaviyo
- Not listed
- Maileroo
- 100,000
SMTP Relay
- Klaviyo
- Not listed
- Maileroo
RESTful Email API
- Klaviyo
- Not listed
- Maileroo
Streams
- Klaviyo
- Not listed
- Maileroo
Sandbox Domain
- Klaviyo
- Not listed
- Maileroo
Automatic IP Warmup
- Klaviyo
- Not listed
- Maileroo
Bounce Handling & Classification
- Klaviyo
- Not listed
- Maileroo
Complaint Handling
- Klaviyo
- Not listed
- Maileroo
Suppression Handling
- Klaviyo
- Not listed
- Maileroo
Resend From Logs
- Klaviyo
- Not listed
- Maileroo
Inbound Emails/Month
- Klaviyo
- Not listed
- Maileroo
- 100,000
Custom Expression Rules
- Klaviyo
- Not listed
- Maileroo
Catch-All, Wildcard & Regex Matching
- Klaviyo
- Not listed
- Maileroo
Email Forwarders
- Klaviyo
- Not listed
- Maileroo
Parsed JSON Webhooks
- Klaviyo
- Not listed
- Maileroo
Automatic Retries
- Klaviyo
- Not listed
- Maileroo
SPF, DKIM & DMARC Enforcement
- Klaviyo
- Not listed
- Maileroo
Spam Checking
- Klaviyo
- Not listed
- Maileroo
Route Priority & Stop Rules
- Klaviyo
- Not listed
- Maileroo
Test Emails/Month
- Klaviyo
- Not listed
- Maileroo
- 10,000
SMTP Sinks
- Klaviyo
- Not listed
- Maileroo
- 50
Inboxes
- Klaviyo
- Not listed
- Maileroo
- 100
AI Analyses
- Klaviyo
- Not listed
- Maileroo
- 2,000
Trigger Actions
- Klaviyo
- Not listed
- Maileroo
Magic Addresses
- Klaviyo
- Not listed
- Maileroo
Client Previews (Light & Dark)
- Klaviyo
- Not listed
- Maileroo
Spam Scoring
- Klaviyo
- Not listed
- Maileroo
Auth & Alignment Checks
- Klaviyo
- Not listed
- Maileroo
Link & RBL Checks
- Klaviyo
- Not listed
- Maileroo
API & CI/CD
- Klaviyo
- Not listed
- Maileroo
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Which email providers fit your needs?
Klaviyo features & plan notes
- E-commerce data
- Omnichannel
- Shopify ecosystem
Maileroo features & plan notes
- Transactional API
- Inbound webhooks
- Simple REST setup
- Outbound Emails/Month: 100,000
- Sending Domains: ∞
- Dedicated IP: –
- Inbound Emails/Month: 100,000
- Test Emails/Month: 10,000
- SMTP Sinks: 50
- Inboxes: 100
- AI Analyses: 2,000
- Trigger Actions: Yes
- SMTP Relay
- RESTful Email API
- Streams
- Sandbox Domain
- Automatic IP Warmup
- Bounce Handling & Classification
- Complaint Handling
- Suppression Handling
- Resend From Logs
- Custom Expression Rules
- Catch-All, Wildcard & Regex Matching
- Email Forwarders
- Parsed JSON Webhooks
- Automatic Retries
- SPF, DKIM & DMARC Enforcement
- Spam Checking
- Route Priority & Stop Rules
- Magic Addresses
- Client Previews (Light & Dark)
- Spam Scoring
- Auth & Alignment Checks
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