In order to improve upon and maintain good deliverability, it is essential to continually monitor your email performance throughout Klaviyo. The best way to do so is to monitor your campaign and flow open, click, bounce, and spam rates. For more information on how to do so, head to our article around How to Monitor Deliverability Performance.
That being said, there are also several third-party tools that can help you monitor your sender reputation and deliverability performance as well.
Third-Party Deliverability Tools
- Postmaster Tools
Postmaster Tools by Gmail is an official Google sender reputation platform that is helpful if you send to a large number of Gmail users. Postmaster Tools helps align your sending with Gmail’s best practices, track whether or not your emails are securely sent, and monitor how many are delivered successfully or marked as spam.
- Smart Network Data Services
Smart Network Data Services is only applicable for Klaviyo users with a dedicated IP. It is the official Outlook sender reputation platform that monitors your deliverability performance according to Outlook 365 email best practices.
250ok validates the emails within your lists and designs previews for email sends. They also provide insights on deliverability, design, DMARC, and analytics.
- Return Path
Return Path is a deliverability tool that helps with list validation, inbox placement, and sender reputation.
Litmus allows you to design and preview emails before sending. It includes pre-send testing that you can utilize alongside your Klaviyo analytics to optimize your campaign sends.
- Email on Acid
Email on Acid is a tool that focuses on the email testing process. They enable large scale email previewing, campaign precheck, spam testing, and more.
Kickbox is a MA3WWG-certified list verification tool that integrates with Klaviyo. They ensure 99% of emails will reach the inbox when using their tool.