If you’re running a WordPress site, email is everything. 

Think about it. 

Contact form submissions, eCommerce order receipts, password resets—every critical interaction your site has with users depends on email. And when email sending fails, things can go south fast.

Lost business. Frustrated customers. Support headaches.

That’s why we built SureMail with built-in failover mechanisms to ensure your website never stops sending emails. 

One of the most important ones? Multiple SMTP Connections.

Why Email Sending Fails More Often Than You Think

Most people assume that once they set up an SMTP provider (like Mailgun, SendGrid, or Amazon SES), email sending is bulletproof. But that’s not how reality works.

Here’s what actually happens:

• Your SMTP provider’s servers go down. (Yes, it happens more often than you think.)
• You hit an email sending limit. (Maybe you got more traffic than expected—good problem to have, but still a problem.)
• Your credit card on file expires, and suddenly, your account is on hold.
• Your SMTP provider flags your account wrongly for potential spam (this happens a lot—they don’t even warn you sometimes).
• Your account gets suspended temporarily, for silly reasons, even if you did nothing wrong.

And when any of these things happen?

Your website stops sending emails.

That means:

• Contact form submissions disappear.
• Order receipts don’t get sent.
• Users trying to reset passwords are locked out of their accounts.

You don’t always notice it until users start complaining—which, let’s be honest, is the worst way to find out something is broken.

Solution: Multiple SMTP Connections That Just Work

With SureMail, you can set up multiple SMTP providers—one as your primary and another (or more) as a backup.

Let’s say you use Mailgun as your primary SMTP provider. Everything works fine—until one day, for whatever reason, emails stop sending.

What does SureMail do?

• It seamlessly switches to your backup SMTP provider—let’s say Amazon SES—and sends the email from there.
• If that too fails, it retries to send the email after 30 minutes through Mailgun and Amazon SES again.

No manual intervention. No lost emails. No support tickets from angry customers. Just automatic, uninterrupted email delivery.

This way, even if one provider fails, your emails still go through—keeping your business running smoothly.

How Other SMTP Plugins Do It (And Why It’s a Hassle)

Some other SMTP plugins offer something similar—but with one limitation:

They force you to use a different email address for the backup connection.

So if your Mailgun account is sending emails from [email protected], and you set up Amazon SES as a backup, they make you use a different email address—like [email protected]—for the backup.

And that’s a problem because:

• It breaks workflows and automations—your emails come from different addresses, causing confusion.
• It adds unnecessary account management—you need to maintain multiple sender addresses.
• It can look suspicious to users and email services when different addresses start sending emails inconsistently.

We hated this limitation. So when we built SureMail, we did things differently.

SureMail Solves This—The Way It Should Be

With SureMail, your backup SMTP providers can use the same email address. 

If Mailgun stops working, SureMail automatically switches to Amazon SES (or any other provider you set) without requiring a different email address.

That means:

• Your emails always come from the same sender.
• Your automations and workflows stay intact.
• You don’t need to manage extra email accounts or addresses.

It’s simple. It’s seamless. And it just works.

The Bottom Line

Your website’s emails are too important to fail. SureMail’s Multiple SMTP Connection feature ensures that your emails get delivered, no matter what happens with your SMTP provider.

So instead of hoping your emails go through, you can have certainty.

Because when email sending is on the line, you shouldn’t have to worry about it.

And with SureMail, you won’t have to.