Why the same email looks different in every inbox
A practical guide to how Gmail, Outlook, Apple Mail, and Yahoo render HTML email differently, and wh...
Email Chart - Lead story
How inboxes render email, and how to reach them
Email Chart is a practitioner reference for founders: rendering differences across Gmail, Outlook, and Apple Mail, authentication setup, pre-send testing, and fair ESP comparisons.
A practical guide to how Gmail, Outlook, Apple Mail, and Yahoo render HTML email differently, and what founders should expect before they blame their ESP.
Read guide: Why the same email looks different in every inboxAlso worth reading
- Email deliverability for founders: the first 90 days
Authentication, list quality, complaint rates, and warming explained for first-time founders who need mail to reach the ...
- SPF, DKIM, and DMARC: setup that actually sticks
A DNS-first walkthrough of the three authentication standards mailbox providers expect, with alignment examples and a sa...
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Reference guides
Email deliverability for founders: the first 90 days
Authentication, list quality, complaint rates, and warming explained for first-time founders who nee...
SPF, DKIM, and DMARC: setup that actually sticks
A DNS-first walkthrough of the three authentication standards mailbox providers expect, with alignme...
Email client CSS: what works, what fails, and what to avoid
A developer-friendly map of CSS support across Gmail, Outlook, Apple Mail, and Yahoo, with patterns ...
Pre-send testing: a workflow that catches real failures
Litmus, seed inboxes, link checks, and spam filter tests arranged into a repeatable pre-send workflo...