SMTP relay
that just works

Switch from any SMTP provider in minutes. Works with Nodemailer, PHPMailer, ActionMailer, and every other SMTP library — just update your host and credentials.

Get started free Documentation

$composer require sendkit/sendkit-laravel

// .env
MAIL_MAILER=smtp
MAIL_HOST=smtp.sendkit.dev
MAIL_PORT=465
MAIL_USERNAME=sendkit
MAIL_PASSWORD=sk_your_api_key
MAIL_ENCRYPTION=ssl

// Use Laravel mail as usual — no changes needed:
Mail::to('[email protected]')
    ->send(new WelcomeEmail());

The easiest SMTP upgrade you'll ever make

Drop SendKit in as your SMTP relay and get delivery tracking, bounce handling, and full logs — with zero code changes.

Drop-in replacement

Switch from any SMTP provider in minutes. Update your host, port, and credentials — no code changes required.

TLS encryption

All connections use implicit TLS on port 465 or STARTTLS on port 587. Your emails are always encrypted in transit.

Delivery tracking

Opens, clicks, bounces, and complaints tracked automatically — even for emails sent via SMTP.

Any framework

Works with Nodemailer, PHPMailer, ActionMailer, smtplib, JavaMail, and any other SMTP-compatible library.

API key auth

Authenticate with your SendKit API key as the SMTP password. No separate SMTP credentials to manage.

99.9% uptime SLA

Enterprise-grade infrastructure with redundancy across multiple regions. Status page and incident notifications.

Everything you need for reliable delivery

Bounce handling, suppression lists, dedicated IPs, and real-time webhooks — all included.

Bounces & complaints

Automatic bounce and complaint handling. Suppression list updated in real time to protect your sender reputation.

Multiple domains

Send from multiple verified domains on a single account. DKIM, SPF, and DMARC configured per domain.

Dedicated IPs

Get dedicated sending IPs on higher plans for maximum deliverability and complete control over your reputation.

Webhook events

Real-time webhook notifications for delivery, opens, clicks, bounces, and unsubscribes — even for SMTP sends.

Full email logs

Every email logged with status, timestamps, and recipient activity. Search and filter from the dashboard.

Suppression list

Automatically skip unsubscribed and hard-bounced addresses. Keeps your list clean without any extra work.

Trusted by teams that depend on email

See how developers, marketers, and product teams use SendKit to send emails that reach the inbox.

We switched to SendKit for our transactional emails and saw deliverability jump from 94% to 99.2%. The API is clean, the docs are great, and we were integrated in under an hour.

Sarah Chen

CTO at Launchpad

SendKit's SMTP relay was the easiest migration we've done. We just swapped the credentials and everything worked. The real-time webhooks for bounce handling saved us weeks of work.

Marcus Rodriguez

Founder at Stackflow

The campaign builder is surprisingly powerful for a developer-focused tool. We run our entire newsletter and drip sequences through SendKit now. The analytics are exactly what we needed.

Emily Park

Head of Growth at Metric

What sold us was the pricing transparency. No per-contact fees, no surprise charges. We send 500K transactional emails a month and the cost is predictable every single time.

James Okafor

Lead Engineer at Paystream

We needed both transactional and marketing email in one platform. SendKit handles our password resets, order confirmations, AND our weekly newsletter. One dashboard, one bill, zero headaches.

Ana Soares

Co-founder at Buildkit

The automation workflows are a game-changer. We set up onboarding sequences that trigger based on user events via the API. Our activation rate improved 40% in the first month.

David Kim

DevOps at CloudBase