How to Clean an Old Real Estate Lead List Before a Drip Campaign
To clean an old real estate lead list before a drip, export it as a CSV, remove duplicates and typos, verify every address, and start the drip with valid rows only. Real estate databases hold years of portal leads, sign-in sheets and past clients, so the oldest rows are the likeliest to bounce. The email verification for real estate agents page explains what each result means, and the email list cleaner handles the first pass.
Step 1: export and merge
Pull the list from your CRM and any side spreadsheets into one CSV. Agents often keep leads in a CRM, a portal export and a phone contacts file. Merge them with the merge lead lists guide so you do not email one person three times.
Step 2: remove duplicates and fix typos
Run the duplicate email remover, then the typo corrector. Hand-typed addresses are the main source of gmial.com and missing-dot errors, and they are easy to fix without a mailbox check.
Step 3: verify the list
Upload the CSV on the verify page. Reasons you will see:
| Result | Reason | What to do |
|---|---|---|
| Invalid | Mailbox not found, No mail server, Typo domain | Remove or suppress |
| Risky | Accepts all addresses, Role address | Hold back, test later |
| Risky | Yahoo, AOL and Microsoft consumer rows | Your call; send in a small batch |
| Valid | Mailbox exists | Into the drip |
Step 4: segment before the first send
Group by how recently you last had contact. Leads who answered in the last year go first; older ones get a softer re-introduction. The re-engagement campaign guide and the sunset policy guide cover what to do with those who stay silent.
Step 5: stage the send
Start with a small slice and watch bounces before sending the rest. If the bounce rate looks wrong, stop and check the list again with the bounce doctor. For phone numbers on the same list, see verifying lead emails and phone numbers.
What this cannot do
- A valid result is a snapshot. Leads change mailboxes after the check.
- It does not say whether a lead is still looking to buy or sell.
- Risky is a real answer, not an error; you decide whether to send.
Clean the list now
Upload it on the verify page: the first 100 checks are free with a Google sign-in, no card. For bigger databases, see bulk email verification and pricing.
Common questions
How do I clean an old real estate lead list?
Export it from your CRM as a CSV, remove duplicates, fix typo domains, then run a bulk verifier. Send the drip to valid rows and hold risky rows back.
How old is too old to email without checking?
There is no safe cut-off. Addresses decay with time, so anything you have not emailed in the last six to twelve months should be checked before it joins a campaign.
Why do Yahoo and AOL leads show as risky?
Yahoo and AOL accept mail for any address during the check, so a mailbox cannot be confirmed. The row is marked risky instead of guessed.
What about Outlook and Hotmail leads?
Microsoft consumer mailboxes (Outlook.com, Hotmail, Live) are not probed, so they also come back risky.
How much does it cost?
The first 100 checks are free with a Google sign-in, no card. Pro is $39 a month, with the first 100,000 checks a month at full speed, then slower, never cut off.
Check your list before you send
Real mailbox checks over SMTP, and nothing is sent to the address. Sign in with Google and your first 100 email checks are free, no card. Plans for bigger lists are on the pricing page.