Guides
Email QA, written down.
Short, practical guides from the workflow SendLint automates. No fluff, no invented statistics, no gated PDFs.
The email QA checklist (the one regulated senders actually use)
Every check a bank-grade email QA pass covers, why each exists, and which ones humans consistently miss.
Read the guide →How to QA an email against the copy deck
Both directions, per language, per version — including alt text, the links table, and the structural gotchas that break naive diffs.
Read the guide →Bilingual email QA: how EN/FR campaigns actually go wrong
Language leaks, links that don't switch languages, lost accents, unequal legal copy — and the pass that catches each one.
Read the guide →How to prove the email you sent is the email that was approved
Approval usually lives in a screenshot and a thread. Here's how to bind it to the exact bytes instead, and verify any file against it later.
Read the guide →Pre-send verification in Salesforce Marketing Cloud
Gate the send itself on QA approval: hash the approved HTML, ask the verification API, stop the automation when the bytes changed.
Read the guide →How to turn a brand guide PDF into email QA rules
Palette, typography, logo lockups, trademark superscripts, spacing — extracted from the PDF with page-level provenance, reviewed once, then enforced on every build.
Read the guide →Comparisons
A Litmus alternative for regulated email QA
Rendering previews and verification are different jobs. An honest side-by-side of which tool fits which one.
Read the comparison →Using SendLint
SendLint for agencies
One rulebook per client, rounds that hand the developer a variance log, free Reviewer seats, and a client sign-off with a public certificate.
See how agencies use SendLint →Help centre: every setting, explained
Brand rules and check policies, copy-deck import, creative compare, real Outlook rendering, SendLint Approved certificates and the verification API — the product documentation, searchable.
Open the help centre →