If your WordPress site sends order confirmations, password resets, or contact form notifications, but those messages end up in spam folders, it’s almost like they were never sent at all. Transactional emails are vital for communications. When they go missing, customers get frustrated and you miss important inquiries or tasks.
You’re far from the only person to experience this kind of issue. So, how do you fix it?
First, determine why it’s happening. Then you can then implement measures like updating your content or using an SMTP plugin or a reputable form builder like Jetpack Forms. These tools improve deliverability for emails originating from your site.
In this post, we’ll take a look at the reasons WordPress emails go to spam. We’ll then show you how to resolve this issue and make sure it doesn’t happen again. Let’s dive right in!
Why WordPress emails get marked as spam
There are different culprits behind WordPress emails going to spam. Understanding the root causes will help you identify the problem and take the necessary steps to fix it.
Here’s what might be happening and what you can do:
Server reputation issues
Shared hosting increases the likelihood that your emails will be marked as spam.
Websites on shared servers have the same IP address. If one website on the server sends spam or experiences delivery issues, email providers may flag that IP. As a result, your legitimate WordPress emails might get caught in spam filters, too.
Some hosting providers maintain reputable IP addresses, but if you notice repeated spam issues, you might want to check if your server’s IP is on a blocklist. You can use a tool like MXToolbox for this.
Missing authentication
Email providers use authentication protocols to verify that an email is coming from your domain (and not a malicious source). There are three main records:
- SPF (Sender Policy Framework): It identifies which servers are allowed to send emails on your domain’s behalf.
- DKIM (DomainKeys Identified Mail): This adds a cryptographic signature to your emails to confirm that the message hasn’t been intercepted.
- DMARC (Domain-based Message Authentication, Reporting & Conformance): This tells email providers how to handle unauthenticated messages.
Without these records in place, your emails may appear suspicious, and providers like Gmail or Outlook will therefore mark them as spam.
Spoofing detection
Spoofing is when the “from” address on an email doesn’t match the server sending it. For example, if your WordPress contact form uses info@yourdomain.com but the server isn’t authorized via SPF/DKIM, email clients like Gmail may flag the email as potential fraud.
This is common when using the default WordPress PHP mail functions. Many hosting servers are not configured to send authenticated emails, which consequently triggers spoofing alerts.
Content triggers
Many spam filters analyze the content of emails. Certain keywords and formatting styles can trigger spam detection.
These include excessive capitalization or exclamation points, too many links, and overuse of promotional or “sensitive” words.
If the nature of your site covers sensitive topics, your email’s use of certain words, while acceptable to your audience, might trigger spam filters. In this case, you’ll need to find new phrases or workarounds.
Your messages can be flagged if their content contains spam-like patterns.
Volume concerns
Sending a high volume of emails in a short period is another red flag for spam detectors. Many email providers track sending patterns, and a sudden surge of emails from the same source, even if legitimate, might result in the sender being flagged as spam.
This is particularly true for ecommerce sites that send order confirmations and other transactional messages daily. If you regularly hit email limits on your shared hosting plan, consider solutions that improve deliverability.
How to fix WordPress emails going to spam
Now, let’s look at how to stop your WordPress emails from going to spam. Let’s explore several different solutions.
1. Install and configure an SMTP plugin
The default PHP mail function in WordPress may not give you the best email deliverability. An SMTP (Simple Mail Transfer Protocol) plugin ensures that your emails are sent via authenticated servers. This means that they’re less likely to be marked as spam.
There are different plugins you can use, one of the best options being MailPoet. This transactional email service comes with an SMTP solution built in. It boasts a near 99 percent global delivery rate and the SMTP is very easy to activate.
Here’s how to quickly set up SMTP with MailPoet. Navigate to Plugins → Add Plugin and use the search bar to find the tool.

Click on Install Now and Activate, and you’ll be directed to the setup page.

MailPoet will ask you to connect to your account. You can create a MailPoet account for free.

Once you’ve connected to your account, go to MailPoet → Settings in your WordPress dashboard and select the Send With tab.

Here, make sure that MailPoet Sending Service is selected. That’s it: Your emails are now delivered through MailPoet’s SMTP service.
2. Use a reliable form plugin to enhance deliverability
A reliable form plugin like Jetpack Forms can improve deliverability. Built by Automattic, the people behind WordPress.com, Jetpack Forms integrates seamlessly with your WordPress site and works well with SMTP plugins, ensuring messages are sent securely.
The plugin is available for free. Go to your WordPress dashboard and click on Plugins → Add Plugin. Look for “Jetpack – WP Security, Backup, Speed, & Growth” in the search bar.

Select Install Now and Activate, then connect to your WordPress.com account or create one for free.
You can now open any page or post to add a form. Click on the plus icon (+) to add a new block and select Form. Jetpack offers pre-made templates, including registration forms, contact form, and more.

You can then customize these forms by adding, removing, and editing fields.
3. Make sure your form plugin has anti-spam protection
Even if your emails reach inboxes, spam submissions from bots can trigger filters that block your messages. Jetpack Forms integrates with Akismet, which automatically blocks spammy form submissions.
This not only protects your inbox, but also helps you maintain a positive sender reputation.
Akismet has a 99.99 percent spam detection accuracy. It also runs spam checks in the background, so it doesn’t interfere with the user experience of real visitors.
4. Authenticate your domain (SPF, DKIM, DMARC)
As mentioned earlier, there are DNS records that authenticate your emails and make sure that they arrive in your customers’ inboxes. Most hosting providers allow you to add DNS records for SPF, DKIM, and DMARC.
If you bought your domain through a registrar, you’ll need to manage these records from that account.
When you set up these records, email providers can verify that your domain is legitimate. Therefore, your messages are less likely to be marked as spoofed.
Some providers have reporting tools that let you check whether unauthorized emails are being sent from your domain.
The process for adding these records will vary depending on your provider, so refer to their documentation for step-by-step instructions.
5. Check your email content
Spam filters also analyze what’s inside an email. So even if your WordPress emails are sent from a reputable server with proper authentication, they can still end up in spam if the content raises red flags. Here are some common things that trigger spam filters:
- Overuse of spammy keywords: Phrases like “Act Now,” “Cure,” “Medication,” “Get Rich Quick,” “Earn $$$,” or “No Credit Check” are often associated with unsolicited marketing emails.
- Excessive punctuation and capitalization: Subject lines like “BUY NOW!!!” or emails full of ALL CAPS can make your message look aggressive or promotional.
- Too many links: If your email contains more links than text, it may appear suspicious.
- Unnecessary attachments: Many email clients block or filter messages with unexpected attachments, especially large uncompressed files.
- Unclear sender information: If your email says it’s from “Admin” or “No-reply,” recipients may distrust it.
So, make sure to keep formatting clean and simple. A well-structured email with short paragraphs and clear fonts looks more trustworthy.
Also, personalize the message when possible, as this signals authenticity. Include the recipient’s name or order details.
You’ll also want to use a clear subject line. Instead of vague titles like “Important Information”, go for something more specific like “Order Confirmation #12345” or “Message from YourWebsite Contact Form.”
You can use tools like Mail Tester or GlockApps to check whether your email content is likely to trigger spam filters. Sending test emails to accounts on different platforms (like Gmail and Outlook) is also a good way to see how your content performs.
6. Monitor email volume
Many WordPress sites on shared hosting have built-in sending limits (e.g. 100–500 emails per hour). Exceeding these limits can cause emails to be flagged.
Plus, a sudden spike in email activity may look like spam behavior to ISPs. If your IP address is associated with bulk mailing without proper controls, it could get listed on spam blocklists.
If you need to send a large batch of emails, avoid delivering them all at once. Many SMTP plugins and email services allow you to schedule or queue emails.
You may also want to consider a dedicated email service provider like Mailgun, SendGrid, or Amazon SES. These services are designed for high-volume sending.
How to ensure this doesn’t happen again
Now that you know how to stop WordPress emails from going to spam, here’s how to prevent this problem in the future.
Regularly test your contact forms
Try to send test submissions weekly (or after major updates). Simply fill out your contact form with a test message and confirm delivery in your inbox. It’s also a good idea to check across multiple email providers.
If your form has attachments, dropdowns, or custom fields, test them all.
Regular testing ensures that your most basic communication channel stays reliable. Plus, you’ll catch issues before customers do.
Regularly test your WordPress and WooCommerce emails
Beyond contact forms, WordPress also sends a variety of automated emails, like password resets, order confirmations, invoices, and shipping updates. If these don’t reach customers, it can damage trust and lead to lost revenue.
So, test WooCommerce transactional emails by placing small test orders. You’ll also want to track bounce rates if you send bulk notifications. High bounces indicate an authentication issue. Depending on the email service you use, you should be able to track metrics like open and click-through rates.
Periodically review your DNS and SMTP settings
DNS and SMTP settings are essential for email deliverability, and small changes in hosting, domain providers, or plugins can cause disruptions.
For example, you might move to a new registrar or your host resets DNS records. Switching servers or upgrading plans may also change your IP address.
Therefore, check DNS records quarterly, using tools like MXToolbox to confirm your SPF, DKIM, and DMARC are intact.
It’s also important to review SMTP plugin settings and make sure that authentication credentials (like API keys or app passwords) haven’t expired.
Keep plugins and WordPress updated
Finally, you’ll want to keep WordPress core, plugins, and themes up to date. Outdated software can introduce bugs, conflicts, or vulnerabilities that impact email deliverability.
For example, new versions of Gmail, Microsoft, or third-party mail APIs may require updated authentication methods. Additionally, hackers often exploit outdated plugins to send spam, which can damage your domain’s reputation.
You can enable automatic updates or update plugins manually when new versions are available. If you opt for the latter, make sure to check your website for plugins at least once a week.
It’s a good idea to run a contact form submission or a WooCommerce test order after updates to confirm that everything is working as it should.Â
Level up your contact forms with built-in spam protection
Choosing a plugin like Jetpack Forms adds another layer of security. Its integration with Akismet stops spam before it hits your inbox. Akismet uses AI and machine learning to block spammy content through forms. It does all this work in the background, without affecting your forms or the user experience of your customers.
With Jetpack Forms, you’ll also have access to the AI Assistant. This feature helps you build forms more easily. Simply enter a prompt, like “create a dropdown field with a list of countries,” and the AI Assistant will create it for you.
Are you ready to boost email deliverability and security? Get started with Jetpack Forms today!







