MX Record Checker for Small Business - Keep Your Email Working

For a small business, email is everything. Customer inquiries, order confirmations, invoices, vendor communication—it all flows through email. When email breaks, business stops.

The frustrating part? Email problems often come from technical settings you didn't know existed. MX records are one of those settings. They control where your email gets delivered, and when they're wrong, email simply doesn't arrive.

What MX Records Mean for Your Business

MX records are like a forwarding address for email. They tell the internet which servers should receive email sent to your domain (like you@yourbusiness.com).

When someone emails your business address, their email server looks up your MX records to find where to deliver the message. If those records are missing, wrong, or pointing to the wrong place, the email bounces back or vanishes.

This isn't something you set up once and forget. MX records can break when:

• You switch website hosting providers
• Your domain expires or transfers
• Someone makes changes to your DNS settings
• You migrate from one email provider to another

Any of these can silently disrupt your email while you assume everything is working fine.

Signs Your MX Records Might Be Wrong

You might have an MX record problem if:

Customers say they emailed but you never received it. The most common symptom. Emails sent to your address bounce or disappear, but you have no idea because you never see them.

Email works sometimes but not always. Partial MX record issues cause intermittent delivery. Some emails arrive, others don't, with no obvious pattern.

You recently changed something with your website or domain. Hosting changes, domain transfers, and website rebuilds often accidentally affect email settings.

Your email provider says everything is fine on their end. If Google or Microsoft says your account is working, but emails aren't arriving, the problem is usually in your DNS settings—including MX records.

Emails you send land in spam. While not strictly an MX issue, email problems often come in clusters. If sending is broken, receiving might be too.

Common Scenarios That Break Business Email

Understanding what causes MX record problems helps you prevent them:

Switching Website Hosts

You moved your website to a new hosting company. They set up DNS for your website, but either didn't copy your MX records or overwrote them with defaults. Your website works great; your email stops working.

Domain Renewal Issues

You forgot to renew your domain, or renewal failed due to a payment issue. The domain expires, DNS stops working, and suddenly nothing resolves—including your MX records.

Email Provider Migration

You switched from one email service to another (say, from GoDaddy email to Google Workspace). The new provider gives you MX records to add, but the old ones are still there too. Email gets confused about where to go.

DIY DNS Edits

You tried to add a website record yourself, but accidentally modified or deleted the MX record. Copy-paste errors, typos, or wrong fields cause this constantly.

Someone Else Made Changes

Your web developer, hosting company, or IT person made DNS changes without realizing they'd affect email. They didn't tell you, and now email is broken for reasons nobody understands.

What You Can Do About It

You don't need to become a DNS expert to protect your business email:

Check Your MX Records Right Now

Use our free tool above to see what MX records exist for your domain. If you use Google Workspace, you should see records pointing to google.com servers. If you use Microsoft 365, you'll see outlook.com servers. If you're not sure what you should see, compare against another business you know uses the same email provider.

Document Your Settings

Once you confirm email is working, save a screenshot or write down your current MX records. If something breaks later, you'll know what it should look like.

Be Careful With DNS Changes

Before anyone changes DNS settings—you, your web developer, your hosting company—ask "will this affect email?" Get confirmation that MX records will remain untouched.

Verify After Changes

Whenever you make changes to hosting, domains, or websites, check your MX records immediately after. Don't wait for customers to tell you email is broken.

Set Up Monitoring

Checking manually is good, but you can't check every day. Automated monitoring watches your MX records continuously and alerts you when something changes.

Understanding What Your MX Records Should Look Like

Different email providers have different MX record requirements:

Google Workspace uses multiple records pointing to servers like aspmx.l.google.com. You'll typically see 5 MX records with varying priorities.

Microsoft 365 usually has one MX record pointing to something like yourdomain-com.mail.protection.outlook.com.

GoDaddy, Bluehost, or other hosting email varies by provider. Check their documentation for correct values.

Zoho, Fastmail, ProtonMail and other providers each have their own MX records. Look up the correct values in their help documentation.

If your MX records don't match what your email provider specifies, that's the problem.

When to Get Help

Some email issues are easy to fix yourself. Others need professional help. Consider getting assistance if:

• You're not comfortable editing DNS settings
• The problem persists after you've tried the obvious fixes
• You're not sure which email provider you're supposed to be using
• Multiple people have made changes and nobody knows the correct configuration
• Email is critical to your business and you can't afford extended downtime

A web developer, IT consultant, or your hosting company's support team can usually resolve MX record issues quickly.

Beyond MX Records

MX records handle where email gets delivered, but other settings affect email too:

SPF records tell other servers who's allowed to send email from your domain. Without correct SPF, your sent emails might be flagged as spam. Check at spfrecordcheck.com.

DKIM adds a signature to your emails proving they're really from you. Missing DKIM hurts your sender reputation. Test at dkimtest.com.

DMARC tells receiving servers what to do if email fails authentication checks. Check at dmarcrecordchecker.com.

Together with MX records, these four settings determine whether your business email works reliably.

The Cost of Email Problems

Email issues aren't just inconvenient—they cost money:

Missed customer inquiries. A potential customer emails, never gets a response, and buys from your competitor instead.

Delayed payments. Invoice emails don't arrive, so customers don't pay on time.

Damaged reputation. "I emailed you three times and never heard back" makes your business look unprofessional.

Wasted time. Troubleshooting email problems takes hours you could spend running your business.

Compliance issues. Some industries require reliable business communication. Email failures can create legal or regulatory problems.

Proactive monitoring costs far less than dealing with the consequences of email downtime.

Monitor Your MX Records

Checking once is good. Monitoring continuously is better. The Email Deliverability Suite watches your SPF, DKIM, DMARC, and MX records daily and alerts you when something breaks.