No credit card required to get started
Remove invalid emails, block fake users and bots
Validate email lists, protect your sender reputation, prevent fraud, and save money on every campaign. Scrub keeps your deliverability high.
Your first 100 validations are free
Stop the bounces before they cost you your sender reputation
High bounce rate? Got a warning from your email provider? Scrub runs every address on your list through 20+ checks. Fake, dead, disposable and risky emails get caught before your next send, not after they hurt your deliverability.
- 1
Bring your list
Upload a CSV, paste addresses, sync from Listmonk or Listnun, or call the API.
- 2
We check every address
20+ checks on every email, run in parallel, with duplicates removed.
- 3
Send to a clean list
Download your results with a valid or invalid status and a 0–100 quality score on every address.
Won't deliver
Removed before they bounce.
Typos & broken formats
Missing @, stray spaces, double dots, no domain. Junk that should never have made it onto your list.
Fake & made-up domains
Domains that don't exist, like gmial.con or asdf.xyz, caught with a live DNS lookup.
Domains that can't receive mail
No MX records means every send to that domain hard-bounces.
Dead & non-existent mailboxes
Where the mail server allows it, a live SMTP check asks whether the inbox exists, catching deleted accounts and made-up names.
Hurts your reputation
Flagged as risky so you decide.
Disposable & burner emails
Throwaway inboxes used by bots and freebie hunters, checked against a blocklist that updates automatically.
Catch-all domains
Where the mail server allows it, we spot servers that accept every address, so real and fake look the same.
Role & dummy addresses
info@, admin@, noreply@, test@. Shared or placeholder inboxes that rarely engage and often complain.
Spoofable domains
We check DMARC so you know which domains protect their mail and which can be spoofed.
Know your list
Context to segment and send smarter.
Duplicates removed
The same person twice means paying twice and annoying them twice.
Free vs business email
Separate Gmail and Yahoo signups from company addresses for B2B targeting.
Mailbox provider
See who hosts each inbox: Google Workspace, Microsoft 365, Yahoo and more.
Quality score & reason
A 0–100 score and a plain-English reason on every address. No black box.
Simple, transparent pricing
Pay only for what you use. No hidden fees. Flat-rate plans available for higher volume.
Pay-as-you-go
$0.005
per email
First 100 validations free · Up to 5,000/month
No credit card required
Need more than 5,000/month? Commit to 10,000 validations for a flat $40/month (same $0.004 rate) — predictable billing, no per-validation surprises. Contact us.
Personal
$0.004
per email
10,000 validations/month · $40/month flat
Growth
$0.0035
per email
10,001 – 100,000 validations/month
Scale
$0.0030
per email
100,001 – 1,000,000 validations/month
Validation
Format & syntax check
MX record verification
Disposable email detection
Role-based address detection
Processing
Single email API
Bulk CSV upload
Results download as CSV
Real-time job progress
Platform
REST API access
Validation history
Integrations
Check your list before your next send
Your first 100 validations are free, with no credit card. Upload a CSV and get every address back with a status and a quality score.
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