I've never used it but if it will help my emails get where they need to go I'm all for it.

An email warmup feature just as we have in Instantly and Lemlist (Lemwarm). The tool simulates real conversations by interacting with thousands of real users with established domain reputations. There's a pool of emails of different users that send and receive emails from each and open them up and even send replies and if they land in the spam folder, mark them as safe to take them out of spam. All of this give positive signals to gmail, outlook servers and thus warms up the emails for better deliverability.

Would love to have a built in email warming feature for sure