In the order they arrived, from the first email after signup.
How often, when and how Petcube emails its subscribers, measured from every email we received.
Every subject line and preview text, in the order they arrived.
We captured 3 emails from Petcube after signing up: sale / discount and product launch emails.
Its typical email arrived 45 days after signup, it sends with Mailchimp and 33% of its emails use discount code.
Its subject lines run about 54 characters.