In the order they arrived, from the first email after signup.
How often, when and how HackMD emails its subscribers, measured from every email we received.
Every email HackMD sent in its first month, grouped by the day it arrived.
Every subject line and preview text, in the order they arrived.
We captured 3 emails from HackMD after signing up: account verification, welcome and digest emails.
67% of its emails arrived on the day we signed up, it sends with mostly Customer.io, and also Amazon SES, its designs lean blue and purple and 33% of its emails use plain text.
Its subject lines run about 51 characters.
