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Head-to-head · SMTP Relay Services

Mailjet vs Maileroo

  • Updated Sep 2026
  • Both researched from official sources
  • 1 check side by side
Higher score Mailjet #3 in SMTP Relay Services 7.7/10 Free plan · 30-day trial Free plan✓ 0 of 3 features Visit Mailjet
Maileroo #7 in SMTP Relay Services 6.7/10 Free plan Free plan✓ 0 of 3 features Visit Maileroo

Mailjet leads on 0 checks, Maileroo on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMailjet · 7.7/10
  • Free planboth

Mailjet scores higher on our rubric for smtp relay services: 7.7 against 6.7 out of 10; our editors rank them #3 and #7.

Mailjet is the better fit for teams combining relay and email marketing. Maileroo is the better fit for developers wanting broad transactional-email coverage.

  • Mailjet fits best

    Teams combining relay and email marketing

  • Maileroo fits best

    Developers wanting broad transactional-email coverage

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature Mailjet 7.7/10 Visit ↗ Maileroo 6.7/10 Visit ↗
At a glance
Editor score 7.7 6.7
Ranking #3 in SMTP Relay Services #7 in SMTP Relay Services
Best for Teams combining relay and email marketing Developers wanting broad transactional-email coverage
Pricing model Free plan + paid Free plan + paid
Starting price Not published Not published
Free plan ✓ ✓
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Support Live chat, Phone, Tickets, Docs Email, Live chat, Docs
Compliance SOC 2, ISO 27001, GDPR, HIPAA, PCI DSS, SSO/SAML GDPR, 2FA, SSO/SAML
Integrations 100+ integrations 3 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Mailjet 0/3 · Maileroo 0/3
Inbound email parsing Not published Not published
Event webhooks Not published Not published
Subaccounts Not published Not published
Specs
Monthly send limit 8000 emails/mo Not published
Dedicated IP option Not published Not published
Email log retention Not published Not published
Our review
Pros
  • SMTP relay, REST API, and webhooks support transactional delivery
  • Automation, segmentation, A/B testing, and landing pages cover campaign needs
  • Integrations include HubSpot, Shopify, WordPress, and Microsoft Dynamics CRM
  • Free tier includes outbound and inbound email allowances
  • Supports SMTP, REST delivery, webhooks and inbound routing
  • Integrates with PHP, Laravel, Node.js, Python, Go, .NET and Java
Cons
  • The Free plan provides basic statistics rather than advanced reporting
  • Automation and A/B testing are listed on paid plans, not the Free plan
  • Its broad marketing scope may exceed the needs of relay-only teams
  • Free Plan is limited to 3,000 outbound emails monthly
  • Paid SMTP plan provides 25,000 emails per month
  • Dedicated IP options are aimed at higher-volume sending
Our verdict

Mailjet combines transactional email delivery and email marketing in one web and API-based platform. It is designed for marketing teams, developers, small and medium-sized businesses, and enterprises that need campaign creation alongside…

Read the review →

Maileroo is an email delivery platform for developers, startups, agencies and enterprises. It supports transactional, bulk and scheduled email through a RESTful API or SMTP relay, while inbound email routing connects incoming messages to…

Read the review →
  1. MailjetSMTP Relay Services 7.7Free plan · 30-day trial
  2. MailerooSMTP Relay Services 6.7Free plan

Strengths and trade-offs

  • Mailjet — where it wins

    • SMTP relay, REST API, and webhooks support transactional delivery
    • Automation, segmentation, A/B testing, and landing pages cover campaign needs
    • Integrations include HubSpot, Shopify, WordPress, and Microsoft Dynamics CRM

    Where it doesn't

    • The Free plan provides basic statistics rather than advanced reporting
    • Automation and A/B testing are listed on paid plans, not the Free plan
    • Its broad marketing scope may exceed the needs of relay-only teams

  • Maileroo — where it wins

    • Free tier includes outbound and inbound email allowances
    • Supports SMTP, REST delivery, webhooks and inbound routing
    • Integrates with PHP, Laravel, Node.js, Python, Go, .NET and Java

    Where it doesn't

    • Free Plan is limited to 3,000 outbound emails monthly
    • Paid SMTP plan provides 25,000 emails per month
    • Dedicated IP options are aimed at higher-volume sending
  • Mailjet7.7/10 · Free plan · 30-day trial

    A broad email platform pairing SMTP relay with campaigns, automation, and analytics.

    Visit MailjetFull verdict →
  • Maileroo6.7/10 · Free plan

    A developer-focused SMTP and API service with inbound routing, webhooks, templates and analytics.

    Visit MailerooFull verdict →

More comparisons

All SMTP relay services comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update