Understanding suspicious templates in Klaviyo

Understanding suspicious templates in Klaviyo

Estimated 1 minute read

Updated Jul 7, 2025, 12:00 AM EST

Table of contents

You will learn
Why we do it
What you can do
Additional resources

You will learn

Learn about Klaviyo's abuse prevention system, and what to do if your template is suspicious.

Klaviyo's abuse prevention checks evaluate email campaign content for potential fraud. Content identified as high risk can cause a campaign to be canceled before sending.

Why we do it

Inbox providers look closely at email content to ensure a sender isn't trying to trick recipients into doing something they shouldn't. For example, a phisher may be posing as PayPal to obtain sensitive information such as usernames, passwords, and credit card details from email recipients.

When an inbox provider determines that an email or a sender is trying to trick recipients, they will start to filter messages to the spam folder or block them completely. Klaviyo's abuse prevention checks help maintain the health of Klaviyo's overall email system.

What you can do

Make sure that your templates direct people to domains that reflect your brand, like your website or your social media accounts.
Ensure that your content is straightforward, so a recipient can clearly understand who you are, what you're selling or sharing with them, and what actions they should take next (e.g., buy or visit your website).
Don't send emails posing as another company or send your subscribers content that is very unrelated to what they opted in to receive.

If your campaign is blocked and you believe your content is legitimate, see how to contact Klaviyo support for the options available to your account.

Additional resources

Understanding email deliverability

Learn about email deliverability, including the steps you can take to establish a strong sender reputation so that your emails are delivered to the inbox. - Guide to the email template editor

Learn about Klaviyo’s drag-and-drop email template editor, including how to use template styles and configure each block type. - Course on building a brand voice

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