How to Fix Klaviyo Emails Going to Spam

Email marketing remains a powerful tool for customer engagement and sales.

However, the success of your campaigns hinges significantly on your emails’ ability to reach the inbox.

With Klaviyo, a leading email marketing platform, there are specific strategies you can employ to avoid the dreaded spam folder.

Understanding Spam Filters

How Spam Filters Work

Spam filters analyze incoming emails based on complex algorithms that consider various factors, including the sender’s reputation, engagement rates, and the content of the message itself.

Common Triggers for Spam Filters

Some common triggers include excessive use of sales language, frequent use of all caps or exclamation points, and embedding too many links or images.

Steps to Enhance Email Deliverability with Klaviyo

Verify Your Domain

Verifying your domain not only improves your credibility with email providers but also assures your customers that the communication is secure and legitimate.

Optimize Your Sender Reputation

Maintain a good sender reputation by avoiding spammy behaviors and focusing on sending emails that encourage user interaction and positive engagement.

Craft Compelling Subject Lines

Avoid spam-trigger words in your subject lines.

Instead, use engaging, clear, and direct language to entice your audience to open the email.

Use a Clean Email List

Regularly clean your email list to remove inactive subscribers who do not engage with your emails, as low engagement rates can affect your overall deliverability.

Maintain a Consistent Sending Schedule

Random and inconsistent email blasts can trigger spam filters.

Establishing a regular, predictable pattern helps in building trust with email providers.

Monitor Engagement Rates

Keeping an eye on how your subscribers engage with your emails is crucial.

High engagement rates are a good indicator of your emails’ relevance and value to your audience.

Use Klaviyo’s A/B Testing Features

Utilize A/B testing to understand better what content works best for your audience, thus enhancing the likelihood of your emails reaching the inbox.

Advanced Techniques to Avoid Spam Filters

Implement DKIM and SPF Records

Setting up DomainKeys Identified Mail (DKIM) and Sender Policy Framework (SPF) records can significantly improve your email deliverability by verifying that the emails are indeed from you.

Educate Subscribers on Whitelisting

Encourage your subscribers to whitelist your emails.

This not only ensures they receive your emails in their primary inbox but also signals to email providers that your communications are welcomed.

Monitoring Your Email Performance in Klaviyo

Analyze Reports and Adjust Strategies

Regularly review Klaviyo’s detailed reports to understand what’s working and what isn’t.

This data-driven approach allows for continuous improvement of your email strategies.


Navigating through the complexities of email deliverability can be challenging, but with the right practices and tools provided by Klaviyo, you can significantly increase the chances of your emails reaching your customer’s inbox rather than the spam folder.

Frequently Asked Questions

How often should I clean my email list?

It’s advisable to clean your email list every 3-6 months to remove unengaged subscribers and maintain high deliverability.

What are some key indicators that my emails are being marked as spam?

Sudden drops in open rates and increased bounce rates can be indicators that your emails are being filtered as spam.

Can formatting affect my email’s deliverability?

Yes, emails that are too heavy on images or poorly formatted text can trigger spam filters.

Is there a best time to send marketing emails to avoid spam filters?

While timing doesn’t directly affect spam filters, sending emails when your audience is most likely to engage can improve your overall sender reputation.

How do SPF and DKIM records prevent my emails from going to spam?

These records verify your domain and assert that the emails sent are indeed from the stated domain, increasing trust with email providers.

Hans Desjarlais
Hans Desjarlais

Hans Desjarlais is a seasoned tech entrepreneur with over a decade of industry experience. Faced with low open rates in his previous lifestyle software business, he dived into the complexities of email deliverability, performed rigorous testing and learned to achieve remarkable results. Now, he specializes in helping companies fix their email deliverability, avoid the spam folder and boost their email ROI.

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