MailerSend vs Onfido Comparison
Detailed comparison of features, pricing, and capabilities
Last updated April 4, 2026
Overview
Compare key metrics and features at a glance
MailerSend
https://www.mailersend.com
MailerSend is a transactional email service provider that offers a complete email delivery infrastructure. The platform provides features like email API, drag & drop email builder, templating system, detailed analytics, and advanced email validation. It focuses on delivering high deliverability rates and comprehensive tools for managing and tracking email campaigns.
Onfido
https://onfido.com
Onfido is an identity verification and authentication platform that helps businesses verify people's identities using document verification, biometric verification, and background checks. The company uses AI and machine learning to verify government IDs and match them to facial biometrics, enabling businesses to onboard customers remotely while preventing fraud and maintaining regulatory compliance.
Quick Comparison
| Detail | MailerSend | Onfido |
|---|---|---|
| Category | Email Marketing | Identity Verification |
| Starting Price | Free | Free |
| Plans Available | 5 | 1 |
| Features Tracked | 15 | 1 |
| Founded | 2020 | 2012 |
| Headquarters | Vilnius, Lithuania | London, UK |
Features
Detailed feature-by-feature comparison
Feature Comparison
| Feature | | |
|---|---|---|
| api | ||
| RESTful Email API | ||
| SMTP Relay | ||
| Webhooks | ||
| core | ||
| Activity Logs | ||
| Advanced Analytics | ||
| Biometric Verification | ||
| Dynamic Templates | ||
| Email Verification | Add-on | |
| Inbound Routing | ||
| Multiple Domains | ||
| Suppression Lists | ||
| Transactional SMS | Add-on | |
| custom | ||
| Drag & Drop Builder | ||
| Email Surveys | ||
| security | ||
| API Tokens | ||
| support | ||
| User Management | ||
Pricing
Compare pricing plans and value for money
MailerSend
From $0/mo
Price Components
- emails: $0/email (500 included)
- email_verification_credits: $0/credit (10 included)
- base_fee: $7/month
- emails: $0/email (5000 included)
- extra_emails: $0.0012/email
Best For
Developers and startups needing reliable transactional email API, SMTP relay, and verification on a budget-friendly free or $7-30/month plan.
Onfido
From $0/mo
Price Components
- document_check: $2/check
- facial_similarity_check: $1/check
Best For
Fintech and mobility platforms onboarding global users needing fast AI-driven biometric and document verification with strong compliance.
Integrations
See which third-party services are supported
Supported Integrations
Coming Soon
Integration comparison data for MailerSend, Onfido is being collected and will be available soon.
Strengths & Limitations
Key strengths and limitations of each service
MailerSend
Developers and startups needing reliable transactional email API, SMTP relay, and verification on a budget-friendly free or $7-30/month plan.
- Free plan with 3,000 emails supports testing and small projects unlike paid-only competitors.
- RESTful API, SMTP relay, and webhooks enable seamless developer integration with multi-language SDKs.
- Inbound routing and email verification protect reputation while parsing replies for support workflows.
- Drag & drop builder plus dynamic Twig templates offer no-code and advanced personalization options.
- Transactional focus lacks full marketing automation for complex campaigns.
- Professional plan at $30/month limits scale without custom enterprise upgrades.
- Small team of 11-50 may slow feature rollouts versus larger competitors.
Onfido
Fintech and mobility platforms onboarding global users needing fast AI-driven biometric and document verification with strong compliance.
- Supports thousands of government-issued documents across 195 countries with AI-powered data extraction and security checks.
- Advanced liveness detection distinguishes real users from photos, videos, or masks via movements or 3D analysis.
- Atlas AI with over 10,000 micromodels processes 95% of checks in under 10 seconds, boosting fraud accuracy by 54%.
- ISO 27001 certified and fully compliant with GDPR, CCPA, featuring end-to-end encryption for biometric data.
- Narrower document coverage at ~2,500 types versus competitors like Veriff's 13,500, limiting some global reach.
- Lacks bank account verification and unified fraud signals like device fingerprinting found in platforms such as SEON or Signzy.
- Biometric verifications take up to 10 seconds, slower than rivals delivering 1-second responses.
Company Info
Company details and background
MailerSend
Onfido
Comparison FAQ
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