Research

Original studies of marketing email, built from the emails brands sent to subscriptions of our own. Every study states its sample, its dates and its method.

Studies

  • Black Friday and Cyber Monday 2026

    In progress. Results after Cyber Monday, November 30.

    What the brands we follow send from Monday, November 23 to Cyber Monday: emails per day, the hour they peak, who starts first and what their subject lines say, split by email platform.

Live data

  • When brands send

    Every listed brand's emails by day of the week and hour. Updated every night.

  • ESPs

    Which email platforms the listed brands send with, and how often each platform's brands send.

Learn: the email marketing encyclopedia

  • Learn

    One page for every email marketing protocol, platform, email type, metric and law, written for practitioners and backed by our data. First entry: DMARC, with the DMARC records of 41,210 brands.

How our research works

Our own data only
Every figure comes from emails sent to addresses we subscribed ourselves.
What a subscriber sees
We receive what a new subscriber receives. A brand that sends some emails to only part of its list sends more than we count.
A stated sample
Each study says how many brands and emails it covers and over which dates. Times are US Eastern.
Fixed figures
A study's figures come from one saved copy of the data, taken on a stated date, so they do not change as new emails arrive. Its table can be downloaded.
Corrections
A corrected figure is changed in place and the change is noted at the foot of the study.

How we collect explains how a brand is added and what each figure means.

Get the Black Friday insights

We're collecting every Black Friday email from more than 41,000 brands as it lands. Get what we find: who starts first, the biggest discounts, and the subject lines that stand out.

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