Fix · Forms and email

Email says "sent on behalf of" or fails sender checks

What you may see

The email service says my domain is not verified

Most likely cause

The email service has not seen the records that prove you own the sending domain.

Check first (about two minutes)

Compare the records the service lists with the DNS records at your domain company.

The fix prompt

What you type here never leaves your browser. The search runs on this page, and nothing is sent to a server or to an AI.

The exact error or what you see

What you did before it happened

Kept only in this browser, on this device. Keys and passwords are removed before anything is saved.

Prompt language

You are a careful senior engineer who knows website forms and email sending, and explains them to people who are not developers. I am not a developer, so explain every step in plain words and tell me exactly which button, menu or command you mean. If you are not sure about something, say so; do not guess.

THE PROBLEM
Email says "sent on behalf of" or fails sender checks

THE EXACT ERROR OR WHAT I SEE
[paste the exact error here]

WHAT I DID BEFORE IT HAPPENED
[write in a few words what you did before it happened]

MOST LIKELY CAUSE
The email service has not seen the records that prove you own the sending domain.

DO THESE STEPS, IN THIS ORDER
1. List the records the email service asks for (type, name, value) and the ones that exist now.
2. Tell me exactly which to add, avoiding a second SPF record (only one SPF record is allowed; merge).
3. Wait for DNS to update, then ask the service to re-check.
Stop and tell me if what you see does not match a step. Do not skip ahead.

CHECK THAT IT WORKED
- The service shows the domain as verified.
Tell me exactly what I should see on the screen when it works.

DO NOT CHANGE
- Do not delete records you do not recognise.
- Anything I did not ask about: the design, the text, other pages, other settings or the data.
- Do not delete files, data or branches, do not reset or force-push, and do not rewrite history, unless you first show me exactly what would be lost and I say yes.
- Do not paste, print or ask me to paste a password or secret key into this chat. If one is needed, tell me which settings page of the right service to store it in.

WHEN YOU FINISH
Explain in simple words what you changed (file by file or setting by setting), why you changed it, and how I can undo it.

Paste it into Claude, ChatGPT, Gemini or Cursor, then follow what it says.

After you tried it, did it work?

Steps

List the records the email service asks for (type, name, value) and the ones that exist now.
Tell me exactly which to add, avoiding a second SPF record (only one SPF record is allowed; merge).
Wait for DNS to update, then ask the service to re-check.

Do not do this

Do not publish two SPF records.
Do not delete records you do not recognise.

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