The Inbox Trust Ladder
Do your emails reach the inbox, and would anyone miss them if they stopped? Four rungs show how much mailbox providers and customers trust you: authenticated, recognized, welcomed and relied on.
Works on any email platform.
Ask yourself first
- If your emails vanished tomorrow, would a customer notice?
- When did you last check that your sending domain is set up correctly?
- What would a mailbox provider say about you if it could talk?
The short answer: Each rung unlocks the next, and skipping one makes the rest of your email marketing system work harder for less. Find your rung, fix the first gap above it, and run it again every quarter.
When to use it
- Revenue from email has dropped while send volume stayed flat.
- Your emails land in spam more than they used to.
- You are about to rebuild flows and want to be sure they will be seen.
- You are moving to a new platform or sending domain.
The four rungs
Rung 1. Authenticated
Mailbox providers can verify you are who you say you are.
- SPF, DKIM and DMARC are set up for your sending domain, and they align.
- You send from your own domain.
- Every marketing email has a one-click unsubscribe.
Rung 2. Recognized
Providers and customers know your sender.
- Same from name and address, steady sending cadence.
- A clean list: bounces removed, long-inactive contacts handled.
- Spam complaints stay very low.
Rung 3. Welcomed
People want your emails.
- Real people click and reply.
- The welcome email sets expectations and asks to be added to contacts.
- People who never engage are suppressed on a schedule, and replies are answered by a person.
Rung 4. Relied on
People look for your emails.
- Customers reply to, forward and save your emails.
- Messages are tied to moments they care about: orders, restocks, gifts.
The workbook has seven pages. A cover with a symptom guide, one page per rung with where to look and what to do for every check, a readout with a 30, 60 and 90 day plan, and a glossary. Blank and sample versions are free.
Common mistakes
- Rebuilding flows before fixing rung 1.
- Treating open rate as proof of rung 3. Privacy features inflate opens, so use clicks and replies.
- Sending to the whole list at once after a long silence.
- Letting promotions crowd out the moments people value.
Questions people ask
What is the Inbox Trust Ladder?
A four-rung model for how much mailbox providers and customers trust your emails.
How do I know which rung I am on?
Use the workbook. Your rung is the last one where every check is a yes.
Where should I start?
On the lowest rung with a gap, nearly always authentication.
Is this the same as deliverability?
Deliverability is the first two rungs. The ladder adds what happens once people actually receive your email.
Part of Email Experience Design. See all the models and workbooks.
Curious which rung you are on? See rung 1 in ten seconds.
The free scan checks SPF, DKIM and DMARC and gives an A to F grade. No login.