→/email-for-ai-agents providers ↗
← all SDKs
sdk · php

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 teams building autonomous agents

An agent stack treats email as a two-way primitive. Inbound has to arrive as structured JSON a tool call can consume, sends have to be safe to retry when a model loop repeats itself, and every action needs an audit trail. A provider without inbound parsing only solves half the problem.

Applied to PHP SDKs, that means weighing inbound parsing, idempotency keys, webhook coverage, and operating track record ahead of the rest, against inbound parsing into tool calls and model-generated sends that must not duplicate.