WordPress SMTP Email,
Done Right.
100% Free. Forever.
SendGrail SMTP is the most powerful free WordPress SMTP plugin. Fix your email deliverability, get full visibility, and never miss a critical notification again.

Everything you need
Pro-level features. Zero cost.
Every feature is available to every user, from day one. No tiers, no upsells — just the most complete free SMTP plugin for WordPress.
Setup Assistant
Get up and running in minutes with our guided wizard that configures everything for you automatically.
One-click Migration
Switch from any other SMTP plugin instantly. Your settings are imported automatically — no rebuilding required.
Email Logs
A complete searchable history of every email your site has sent, with full metadata and delivery status.
Conditional Email Routing
Route transactional, marketing, and admin emails through different SMTP connections based on your rules.
Secondary Connection
Configure a backup SMTP provider that automatically takes over if your primary connection ever fails.
Email Delivery Test
Send a live test email straight from your WordPress dashboard to verify your SMTP connection is working.
Email Simulation
Preview how emails look and behave in a sandbox environment before they go out to real recipients.
Failure Notifications
Receive instant alerts when emails fail to deliver so you can act fast and never leave a customer hanging.
Reporting Dashboard
A beautiful, at-a-glance overview of your email performance with trends, delivery rates, and more.
Open & Click Tracking
Know exactly who opened your emails and what links they clicked, right inside your WordPress dashboard.
Weekly Email Summaries
Get a digest of your email activity delivered to your inbox every week so you always stay in the loop.
Email Reports
Download detailed reports on deliverability, open rates, and clicks. Share them with your team effortlessly.
14 providers & counting
Connect your favourite email provider
Works seamlessly with all major SMTP providers. Switch anytime — your logs, settings, and reports stay right where they are.

Google Workspace
Gmail & Google SMTP

Microsoft Outlook
Office 365 & Exchange

SendGrid
Transactional emails

Postmark
Developer-focused SMTP

Brevo
Marketing & transactional

Mailgun
API-based email service

Amazon SES
Scalable cloud email

Netcore
Email intelligence

SparkPost
Predictive deliverability

Elastic Email
Affordable bulk email

Mandgrill
Fantastic email delivery

SMTP2Go
Reliable delivery service

SendLayer
WordPress-first SMTP

Zoho Mail
Business email suite

Mailjet
Real-time collaboration

Mailtrap
Amazing service for pro

Yahoo!
Your true business partner
Your WordPress emails, finally reliable.
Join thousands of WordPress site owners who trust SendGrail SMTP to deliver every email, every time — at absolutely no cost.
Made with ❤️ for the WordPress community