Lead List Cleaner

A dirty list costs more than a small one

Every list arrives with the same four problems: the same person three times under different spellings, companies that no longer exist, shared inboxes pretending to be people, and names in whatever casing the source happened to use. Sending into that burns your domain reputation and puts ALL CAPS company names into your first line.

Duplicates are rarely identical

Exact match deduplication catches the easy half. The rest hide behind casing, plus addressing, a middle initial, or the same person listed under both the parent company and the subsidiary. Choosing what counts as the same row, the mailbox, the domain or the person, is the decision that determines how much of the list survives.

Only a live check finds dead companies

A well formed address at a company that folded eighteen months ago looks perfect in a spreadsheet. Nothing about the string is wrong. The only thing that catches it is asking the domain whether it still has a mail server, and asking the server whether it still has that mailbox.

Normalisation is what merge fields depend on

Hi ACME SUPPLY CO is the fastest way to tell someone they are on a list. Consistent company names, proper name casing and trimmed whitespace are not cosmetic once your first line uses them, they are the difference between a message that reads as written and one that reads as generated.