Hey @suchi_klavier,
Glad to hear those troubleshooting tips helped you figure out the missing link between your subscribers and your flow.
I believe your emails landing in spam actually stems from using two separate email platforms - Klaviyo and Hubspot. Using two email platforms simultaneously is highly ill advised. This causes your emails to look suspicious since inbox providers wouldn’t be able to differentiate which sender is legitimate and/or which one is a malicious actor spoofing.
For this reason, it’s imperative to go through a warming period on the new platform after migrating services. This is to rebuild your legitimacy as a sender and for inbox providers to relearn where you’re sending emails from.
Setting up and using a dedicated sending domain is typically best practice. Especially if your sending domain was previously authenticated. In which case, setting up and using a dedicated sending domain would be required to realign your DNS records on the new platform.
There could also be other causes that are leading your emails to land in spam, which you may want to consult further with the help of a deliverability specialist. To get started though, I would suggest taking a look at some of the resources we offer below surrounding deliverability best practices and how to warm and strengthen your sending domain/reputation:
The double opt-in email is unique in the sense that it’s sent on your behalf from Klaviyo. Because of this, viewing the engagement data (opens, clicks, etc) for it is not available since it’s not technically sent from your specific Klaviyo account; but rather from the Klaviyo infrastructure itself.
David