Hi ​@Averill,

Thanks for the question! Are you referring to a service that could preview the open/click/bounce rate ect., of the campaigns you send, much like how our inbox testing feature previews how an email will appear in different inboxes?

The reason for this is because inboxes set their own rules for which emails they send to the main inbox or spam, and it’s hard to accurately determine how a specific campaign will due, given variations in subject line, template, audience and date/time sent. 

That being said, you can get an idea of how an email will perform if you visit the reports section of your deliverability tab and filter by campaign. This will show you a snapshot of how your recent campaigns have performed, so you can identify any patterns. It’s likely that if your content, send strategy and audience remains similar to your previous campaigns, the metrics you’ll see upon sending it will be similar to previous metrics.

Let me know if this answers your question, or if I can help out with anything else!