# Email Sender Fix Desk: safe unsubscribe fix rules and a ten-check email scan (free sample)

> From Email Sender Fix Desk: the mistakes agents make when they fix newsletter footers and sender records, nine rules to paste into your agent, and a read-only script that runs ten checks on one saved email, from missing one-click unsubscribe headers and unsubscribe links to a missing postal address, fake Re: subjects, leftover placeholders and inbox promises.

- URL: https://paperchasewebb.ai/bots/marketplace/items/email-sender-fix-desk-safe-unsubscribe-fix-rules-ten-check-email-scan-free-sample/
- Type: Prompt pack
- Category: Solo business
- By: PaperChaseWebb
- Works with: Claude Code, Codex, Grok Bot, Hermes (named in the listing); Plain .md plus one Python 3 script, standard library only, read-only. The rules paste into AGENTS.md, CLAUDE.md, Hermes notes or a Grok Bot's standing instructions. Tested on Linux
- Price: Free USD
- Difficulty: Beginner
- Setup time: 5 min
- Time to result: About five minutes to a first scan
- Format: Markdown (.md) file, email-sender-fix-desk-safe-unsubscribe-fix-rules-ten-check-email-scan-free-sample.md
- Version: 1.0, updated 2026-11-01
- License: Personal and commercial use.

## What you end up with

You can see whether a newsletter, or an agent's fix of it, has the unsubscribe headers, unsubscribe link and address it needs before it goes out.

## What you get

- Why agent email fixes need checking
- Nine rules for agents that fix newsletters and sender records
- email_mini.py: ten read-only checks for one saved email
- A made-up newsletter with four findings and a clean fixed copy

## Who it is for

Anyone who wants a quick check on a newsletter, or on an agent's fix of it, before it goes out.

## Tools needed

- Python 3.8 or newer: runs the email scan, the fix check, the DNS and DNS proposal checks, the report check, the rules and settings checks and the owner approval script; standard library only
- You need: Python 3.8 or newer
- You need: One email saved as .eml

Cost to run: Free.

## Sample prompt: Check before it goes out (Grok Bot, Claude Code, Codex, Hermes)

```
Run python3 email_mini.py on [fixed email]. Fix every finding without deleting words, inventing an address or an unsubscribe link, or hand it to me. Do not send anything.
```

The rules and script are in the file.

## Free preview of email-sender-fix-desk-safe-unsubscribe-fix-rules-ten-check-email-scan-free-sample.md

````markdown
# Email Sender Fix Desk: safe unsubscribe and footer fix rules and a ten-check email scan (free sample)

Version 1.0, 2026-11-01. By PaperChaseWebb. For anyone letting an AI agent fix the unsubscribe headers and footer of a newsletter. One page and one Python 3 script, standard library only, read-only: it reads one saved email, prints findings and changes nothing. It sends nothing and opens no network connection. No API key, no login. Tested on Linux with Python 3.13, 3.12, 3.11, 3.9 and 3.8: 5 unit tests, and 96 of 96 planted faults caught. The example business is made up. Not legal advice.

## Why agent fixes need checking

Gmail and Yahoo ask senders of marketing mail in volume for a one-click unsubscribe in the headers and a visible unsubscribe link in the body, and Outlook.com rejects high-volume mail without SPF, DKIM and DMARC. CAN-SPAM asks for a real postal address and a working opt-out. Most small newsletters are missing one or two of these.

An agent can fix them fast, and it gets them wrong in the same few ways:

- It trims the footer and takes real content with it.
- It writes in a postal address that is not yours.
- It invents an unsubscribe link that goes nowhere.
- It adds a tracking pixel.
- It "cleans up" SPF and drops the tool your invoices go out through.
- It writes that the email is "fully CAN-SPAM compliant" and will reach the inbox.

## Rules to paste into AGENTS.md, CLAUDE.md, a Grok Bot standing order or Hermes notes

1. Never send, schedule or publi
````

## Test record

- Date: Nov 1, 2026
- What was run: tests/test_mini.py (5), 96 planted faults against email_mini.py, and the copy extracted from the sample page. Linux, Python 3.13, 3.12, 3.11, 3.9 and 3.8.
- Result: 5 passed, 0 failed on all five versions; 96 of 96 faults caught; the extracted copy was identical to the tested script and found 4 problems on the example email and 0 on its fix.
- Not run: Your settings, the fix check, the DNS checks and the eval set (the full kit does those).

Copied from this item's dated test notes. What was not run stays in.

## Worth knowing

- The sample checks one email on its own. Your settings, the fix check against the original, the SPF, DKIM and DMARC checks, the eval set, owner approval and agent setups are in the full kit.
- Not legal advice. It does not say an email meets any law or where it will land.
- On 2026-11-01 email_mini.py passed 5 unit tests and 96 of 96 planted faults on Linux with Python 3.13, 3.12, 3.11, 3.9 and 3.8, and the copy extracted from the sample page was identical to the tested script.

## Questions

**Does it change my files or send anything?** No. It reads the file you name and prints findings. It opens no network connection, sends nothing and changes nothing.

**What is in the full kit?** An 18-check scan using your own settings, a 14-check fix check against the original email, SPF, DKIM and DMARC checks with a check on the agent's proposed records, owner approval at a terminal, a 6-email eval set, and setup for Grok Bot, Claude Code, Codex and Hermes. $29.

## How to get it

Free sample. Download it directly at https://paperchasewebb.ai/bots/marketplace/items/email-sender-fix-desk-safe-unsubscribe-fix-rules-ten-check-email-scan-free-sample/, no signup.

Seller: PaperChaseWebb Inc., mgmt@paperchasewebb.com