Agents / Marketing & AI visibility / Claude skill packs
Fix domain typos, apply your unsubscribes, merge Gmail duplicates and drop domains with no mail server before you verify or send. Does not probe mailboxes.
Pro Use it here · Ready in about 1 minFormat: Claude skill#Marketing & AI visibility#Claude skill packs
$19one-time, launch price
ProReadyBuy Now opens our own checkout on this site; the payment provider is the merchant of record. You get the download right after payment. 14-day refund. Refund policy.
Coming soon. Press "Get notified" and you'll get an email when it launches. It will sell on this site, with a 14-day refund.
Drop your file and get the result in seconds. It runs in your browser, so your files never leave your device. Free: the full free clean on your whole list (syntax, duplicates, role and disposable addresses).
The mail-server check runs in the download version.
How Email List Cleaner Pro with MX check moves through a job, step by step. The run below is an example output, written from what this agent does. It isn't a live run on your data.
Sample input
One or more CSV exports (any delimiter) or a plain one-address-per-line file
Example output Illustration
You get: - clean.csv with your original columns - removed.csv with status, reason and a suggested fix - all-with-status.csv - report.md with counts, reasons and top domains
Third-party costs are paid to those providers, not to us.
65/65 automated checks pass on Python 3.13.5 (standard library only); 29 cases incl. invalid input, duplicates and upstream failures. Not tested: lists over 200,000 rows (works, but slower); every CSV dialect of every email tool; internationalised addresses beyond IDNA domains.
Demos use fictional businesses and data.
Start free
Two small Claude skills, free: clean a messy CSV, and check which AI crawlers can reach your site.
This is an AI agent: it uses an AI model to read, sort, score or draft. It runs in your own accounts. Anything it would send outside your business waits for your approval unless you choose otherwise, and it never needs your passwords. Our AI disclosure.
Setup steps, fixes and version history. The help box answers from these docs; it is not a person.
5 tested Claude skills check whether search and AI crawlers can reach and read your site: crawl, bot access, schema, llms.txt. Not a rank tracker.
5 Claude skills
Download + 3-step setup · Ready in about 6 min
$29
Get itTwo small Claude skills, free: clean a messy CSV, and check which AI crawlers can reach your site.
2 Claude skills
Download + setup guide
Free
Get itCheck your Etsy listings against Etsy's own title and tag guidance: 140 characters, 13 tags, allowed characters, photos. Free, no login.
Claude skill
Use it here · Ready in about 1 min
Free
Get itFix domain typos, apply your unsubscribes, merge Gmail duplicates and drop domains with no mail server before you verify or send. Does not probe mailboxes. clean.csv with your original columns. removed.csv with status, reason and a suggested fix. all-with-status.csv. report.md with counts, reasons and top domains.
You need: Claude.ai with code execution, or Claude Code; Python 3.10+ (standard library only); Any CSV export from your email tool, CRM or form. Third-party costs are paid to those providers, not to us.
65/65 automated checks pass on Python 3.13.5 (standard library only); 29 cases incl. invalid input, duplicates and upstream failures. Not tested: lists over 200,000 rows (works, but slower); every CSV dialect of every email tool; internationalised addresses beyond IDNA domains.
It sells on this site for $19, one-time. When payments are open, the button on this page says "Buy Now": you pay through our checkout (the payment provider is the merchant of record) and get the download right after, with a 14-day refund. If it says "Get notified", payments aren't open yet.
It covers the checks that do not need a mail server: syntax, typos, duplicates, role and throwaway addresses, your suppression list and whether the domain can receive mail. It does not probe individual mailboxes, so it cannot spot a deleted mailbox on a working domain.
No. With --check-mx only the domain names are looked up over DNS-over-HTTPS. Without it nothing leaves your computer.
CSV with commas, semicolons, tabs or pipes, from any email tool, CRM or form, or a plain text file with one address per line. The email column is found automatically or named with --column.
Yes. Give several files; the email columns are merged into one and duplicates across files are caught.
Review them. Role inboxes and throwaway domains often never opted in. Use --keep-risky to keep them in clean.csv.
It depends on your list. Every address removed here is one you do not pay a verifier for, and the report shows how many were removed and why. We do not promise a percentage.
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