Fail-Proof Email Delivery 100% Free

Set up, monitor, and manage your WordPress emails effortlessly with advanced SMTP features, analytics, and failover mitigation

Backup Connections

Auto-Retry Mechanism

Reputation Shield

Resend Failed Emails

Email Failure Notifications

Inbuilt
SMTP

Try for Yourself

This content is blocked because it requires Bunny.net cookies.

{“@context”:”https:\/\/schema.org”,”@type”:”VideoObject”,”name”:”SureMails-Welcome-Brainstorm-Force-720p-h264.mp4″,”thumbnailUrl”:”https:\/\/suremails.com\/wp-content\/uploads\/2025\/01\/video-thumbnail-sm.jpg”,”uploadDate”:”2025-01-12T20:12:07-08:00″,”contentUrl”:”https:\/\/vz-86a2f4f9-adf.b-cdn.net\/2fd0797a-9329-4c64-8965-f12536f1b8e2\/playlist.m3u8″}

Fail-Proof Email Delivery with Unmatched Reliability

Ensure every email sent from your WordPress site is delivered with confidence, thanks to multiple fallback connections, auto-retry mechanisms, and real-time failure notifications.

Multiple Backup Connections

Never Miss an Email with Multiple Backup Connections

SureMail ensures fail-proof delivery by switching to backup SMTP connections when the primary fails.

Set up multiple SMTP providers for smooth failover.
Automatically redirect emails to backup connections on failure.
Maintain uninterrupted communication with automatic fallback.

Never Miss an Email with Multiple Backup Connections

Auto-Retry Mechanism

Retry Failed Emails Automatically

SureMail retries sending failed emails through all configured connections until they’re delivered.

Automatic attempts to resend emails after 30 minutes of failure.
Retries across both primary and fallback connections.
Ensure emails reach their destination with intelligent fail-safe design.

Reputation Shield

Keep Emails Problem-Free with Reputation Shield

Reputation Shield scans your emails for potentially problematic content and blocks them before they are sent to your SMTP service.

Prevents the sending of emails with problematic content.
Provides a detailed report of scanned content for transparency.
Ensures only compliant emails are sent to protect your reputation.

Email Failure Notifications Planned

Stay Informed with Real-Time Email Failure Alerts

Get instant notifications for failed emails via OttoKit integration to any platform of your choice.

Notify team members on Slack, SMS, or other communication tools.
Customize alerts to fit your workflow and keep issues under control.
Proactively resolve issues before they impact your business.

At SureMail, we know that reliable email delivery is crucial for success. That’s why we built SureMail – to provide an easy, fail-proof SMTP solution for WordPress users. Our goal is to help you connect with your audience effortlessly, so you can focus on what matters most.

Adam Preiser

WPCrafter

15 SMTP Services

Connect with Your Favorite SMTP Services Planned

Easily link your WordPress site to top SMTP providers like Amazon SES, SendGrid, Mailgun, Postmark, and more to ensure your emails are delivered reliably and securely.

New Add-On

Introducing SureContact SMTP

Our own in-house SMTP service, now available as a SureMails add-on. You send through sending IPs we own, warm up and monitor. No third-party account to open, no credentials to source, no second dashboard.

Add it as a primary connection or keep it as your backup. Failover and auto-retry work exactly as they do today.

Learn More

100 free sends included with every account

Managed Sending IPs

Sending IPs we own, warm up and monitor for you. No IP reputation to build from scratch.

Guided Domain Setup

The wizard generates your DKIM key and hands you the exact SPF, DKIM, Return-Path and MX records, then verifies them live.

Bounce & Complaint Handling

Hard bounces and spam complaints are suppressed automatically, so bad addresses don’t keep costing you reputation.

Why Is SureMail Free?

A Gift to the WordPress Community

SureMail is our way of giving back to the WordPress community. Built by the team behind Astra and Spectra, SureMail is free forever – because reliable email delivery should be accessible to everyone.

Empowering WordPress Users

We want every WordPress user to enjoy fail-proof email delivery without any added cost.

Fueled by Passion, Not Profit

We believe in the power of open source and want to ensure essential tools remain accessible to all.

Making Email Delivery Reliable

Our mission is to solve email issues for WordPress users everywhere, at no cost to you.

Strengthening the Community

SureMail is a contribution to make WordPress stronger and more reliable for everyone.

Multiple Backup Connections

Never worry about email failures – SureMail automatically reroutes through backup SMTP providers.

Advanced Retry Logic

Failed emails are automatically retried through all of the configured connections to ensure seamless delivery.

Email Logs & Resending

Keep a complete record of every email sent from your WordPress site and resend all the email messages with ease.

Reputation Shield

Reputation Shield protects your sender reputation by identifying and blocking potentially problematic emails before they’re sent.

Email Failure Alerts Planned

Stay informed instantly with customizable email failure alerts via OttoKit or your preferred communication tools.

Multiple SMTP Providers

Integrate and switch between leading SMTP services like Amazon SES, Gmail, SendGrid, Mailgun, and many more.

Built-In Email Testing Tool

Easily send test emails for verifying your SMTP configuration before sending live emails to your customers and subscribers.

Easy and Flexible Configuration

SureMail’ simple and user-friendly interface ensures quick and hassle-free SMTP setup for users of all skill levels.

Analytics and Reporting

Gain valuable insights into your email delivery performance with comprehensive and intuitive reports.

What People Are Saying About SureMail

Athlone

SureMail will be the go-to solution for transactional email in WordPress.

Ash Nazir

I’m thankful it will be free. I’ve got no money left 😂

Laurent Gaulhiac

I knew it was coming but was thinking “nah am good with Fluent SMTP”, they REALLY have to make something awesome to make me change… well if seems that it will have all the features AND also free + a better design on top… Ok am sold!

Meddy Brai

was about to judge it until I read « free
So… Thanks 🙂.

Csosz Tibor

Hi, thanks for this great SMTP plugin! :))

Andrew Peters

This is cool. But plugins like these also make me super grateful for the gridpane sendgrid integration is toggle on for every site. 🙂 😎

Daniel Berggren

I am really looking forward to this one.
Redundancy is so important, and after reading Adam’s comments on backup email + notifications via OttoKit, this is the kind of thing that gives me peace of mind.

Fred Vinson

I’ve been waiting for a plugin to take out WP Mail SMTP.

Salman Sarwar

Well That’s Amazing and am badly waiting for this 😀

Frequently Asked Questions

All you need to know about SureMail

Is SureMail really free?

How does SureMail ensure email delivery?

Can SureMail handle high email volumes?

Will SureMail slow down my website?

What are the requirements to use SureMail?

Can I check the emails sent through SureMail?

Does SureMail support secure email sending?

Fail-Proof Email Delivery 100% Free

Fail-Proof Email Delivery with Unmatched Reliability

Never Miss an Email with Multiple Backup Connections

Retry Failed Emails Automatically

Keep Emails Problem-Free with Reputation Shield

Stay Informed with Real-Time Email Failure Alerts

Connect with Your Favorite SMTP Services Planned

Introducing SureContact SMTP

A Gift to the WordPress Community

Everything You Need for Email Delivery

Multiple Backup Connections

Advanced Retry Logic

Email Logs & Resending

Reputation Shield

Email Failure Alerts Planned

Multiple SMTP Providers

Built-In Email Testing Tool

Easy and Flexible Configuration

Analytics and Reporting

What People Are Saying About SureMail

Frequently Asked Questions

Take Control of Your Email Delivery Today!