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PHP email SDKs

PHP support is dominated by Laravel-friendly SDKs. Symfony Mailer transports are the second pattern.

PHP teams increasingly run on Laravel or Symfony. The right question is which provider has a first-class transport, not just a raw HTTP SDK.

what to evaluate

Considerations

Use these lenses when comparing the picks below.

  • Laravel mailer driver availability.
  • Symfony Mailer transport availability.
  • Composer dependency footprint.
  • PHP version support floor.

top picks

  1. 01

    Postmark

    Transactional

    Postmark transport for Laravel and Symfony. Maintained.

    100/mo developer plan · $15/mo for 10,000 emails
  2. 02

    Mailgun

    Transactional

    Long-standing Symfony Mailer transport.

    100/day permanent free plan · $15/mo for 10,000 emails (Basic)
  3. 03

    SendGrid

    Transactional Marketing

    Stable PHP SDK and Laravel adapter.

    60-day free trial only (permanent free tier was removed May 2025) · $19.95/mo for 50,000 emails
  4. 04

    Amazon SES

    Transactional

    AWS SDK PHP plus SES Laravel driver.

    Up to $200 in AWS Free Tier credits for new accounts · $0.10 per 1,000 emails
also available

Other providers shipping a PHP SDK

Resend Transactional

Email API tightly coupled to React Email.
Mailtrap Transactional

Originally a staging inbox, now a sender too.
Loops Marketing

Modern lifecycle and broadcast email for SaaS.
MailerSend Transactional

Modern transactional API with a clean UI.
Brevo Transactional

All-in-one with a generous daily free tier.
SparkPost Transactional

High-volume sender with deep analytics.
SMTP2GO Transactional

Reliable SMTP relay with strong deliverability.
Mailjet Transactional

European-focused, GDPR-friendly all-in-one.
Elastic Email Transactional

Low-cost email API and SMTP relay with marketing features nearby.
Customer.io Marketing

Behavior-driven lifecycle messaging.
Klaviyo Marketing

Ecommerce-focused marketing automation.
Mailchimp / Mandrill Marketing

Legacy marketing giant, transactional via Mandrill.
Postal Self-hosted

Open-source mail delivery platform.
Knock Notifications

Notification infrastructure with workflow engine.
Courier Notifications

Notification infrastructure with visual journeys.
Novu Notifications

Open-source notification infrastructure.
MailSlurp Testing

Programmable inboxes for testing, inbound workflows, and email automation.
Framework integrations →

reading this as early-stage startups

At an early stage the deciding factors are what the free tier actually covers, what the first paid invoice looks like, and how much of a founding engineer's week the setup costs. Feature depth that only matters at a million sends a month is noise until it is not.

Applied to PHP SDKs, that means weighing free tier, best published rate per 1,000, entry price, and developer experience ahead of the rest, against a waitlist, a launch announcement, onboarding email, and the first transactional sends.