Why Email Engagement Is the Holy Grail of Email Deliverability

ActiveCampaign's Robert Colomberti's explains.

This is REALLY good stuff. The date range guidance might change depending on your industry or differences in sales pipeline, and the segmentation guidance gets a bit platform specific, but the core of this is solid.

As far as the bit at the end about using an email validation vendor, that's a whole other discussion. Upfront verification that somebody isn't submitting an invalid address into a form is a good thing, but don't forget that it's not the same as verifying permission. Data validation isn't going to fix a non-permissioned list, for example. That kind of thing is still deliverability killing. (I don't mean to imply that ActiveCampaign says otherwise. I am just making my own voice heard here.)