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Transactional email APIs

Brevo vs Postal

as AI assistants see them, week of 2026-09-28

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Brevo shows up far more often than Postal, with a 23 overall score against Postal's 7, and a mention rate of 20 of 62 answers versus 5 of 62. Brevo stands out for transactional email APIs, free tiers, marketing-plus-email combos, and EU data hosting, each named in 3 of 3 or 3 of 4 answers. Postal's one strong spot is open-source or self-hosted email servers, where it's named in all 3 answers, something Brevo is never mentioned for. Head to head, Brevo leads on 10 questions, Postal on 3, with 7 ties.

Head to head

metricBrevoPostal
score237
questions won103

By assistant

Brevo

assistantscorenamed in, this weekusual spot, this week
ChatGPT1415% of answers#1.3
Claude2135% of answers#5.3
Gemininot sampled this week
Perplexity3445% of answers#3.1

Postal

assistantscorenamed in, this weekusual spot, this week
ChatGPT55% of answers#1.0
Claude1115% of answers#3.7
Gemininot sampled this week
Perplexity55% of answers#1.0

Where they differ

Only Brevo gets named for

  • Which email API has the best free tier?
  • What's the best email API that also handles marketing campaigns?
  • What's the best email API for a European company that needs EU data hosting?
  • What are the best transactional email APIs?
  • Which transactional email service is best for a startup?
  • What's the best alternative to SendGrid?
  • What's the best email service for sending receipts and order confirmations?
  • What's the best email API for developers?
  • What's the best email API for a Next.js or serverless app?
  • What's the best email API in 2026?

Only Postal gets named for

  • What's the best open-source or self-hosted transactional email server?
  • What's the cheapest way to send transactional email at scale?
  • What's the best transactional email provider for high volume at low cost?

More comparisons

Not sold on either?

Scores count how often each assistant names a product, weighted by position. How the score works · Full Transactional email APIs leaderboard