Email list cleaning service that also resolves catch-all leads
Upload your list and get it back clean in minutes. Our email list cleaning service removes invalid, disposable, role-based and duplicate addresses before they bounce and hurt your sender reputation. Many list cleaners mark every catch-all address as "risky" and leave the choice to you. We check each one and tell you which one is safe to send.
1,000 free credits, no card needed. CSV or Excel, up to 50,000 addresses per file. Credits never expire.
- anna@acme.comDeliverable
- j.doe@globex.ioUndeliverable
- sara@northwind.coDeliverable
- mark@initech.comDeliverable
Clean your email list in three steps
Upload your list
Add a CSV or Excel file with up to 50,000 addresses. Bigger list? Split it into a few files.
We check every address
Syntax, the domain's mail servers (MX) and the mailbox itself over SMTP, plus disposable, role-based, duplicate and catch-all checks. No email is sent to your contacts.
Download the clean list
You get a CSV with a result on every row, so you can keep, remove or review each address.
What email list cleaning removes
| Result | What it means | What to do |
|---|---|---|
| Invalid | The mailbox or domain doesn't exist. Sending to it causes a hard bounce. | Remove |
| Disposable | A temporary inbox from a service like Mailinator or 10MinuteMail. It will be gone soon. | Remove |
| Role-based | A shared inbox like info@, sales@ or support@. Rarely a real decision-maker. | Remove for outreach, keep for support lists |
| Duplicate | The same address appears more than once. | Keep one copy |
| Catch-all, resolved | The domain accepts every address. Giggal checks the mailbox behind it. | Keep if valid, remove if invalid |
| Unknown | The server didn't answer in time or asked us to retry later (greylisting). | Retry later. Unknown results are refunded. |
Removing these addresses keeps your bounce rate low. That protects your sender reputation, so more of your emails reach the inbox. New to bounces? Read what a hard bounce is and hard bounce vs soft bounce.
Why many email list cleaners flag good leads as risky
Many company mail servers accept every address, real or made up. That's a catch-all domain. On these domains a standard check gets the same "yes" for a real mailbox and a typo. Many email list cleaning services stop there, label the address "risky" and leave the decision to you.
On B2B lists these domains are common. Larger companies often sit behind security gateways that hide the mailbox. Delete these addresses and you throw away real buyers. Send to them and the dead ones bounce.
Giggal resolves each catch-all address to valid or invalid for the same 1 credit as any other check. It also works on domains behind security gateways like Proofpoint and Mimecast, where other tools return "unknown". See how catch-all verification works.
Email list cleaning pricing
Pay for the emails you clean, with no monthly commitment. One credit cleans one address, catch-all checks included. Credits never expire, and your first 1,000 are free.
Cleaning a 10,000-contact list costs $9.90. Monthly plans save 10%. See all prices
How often should you clean your email list?
Addresses go stale on their own. People change jobs, companies change domains, and old inboxes get shut down. B2B lists go stale fastest. Clean your list:
- Before a campaign to any list you haven't cleaned in the last few months.
- Right after you import a purchased, scraped or enriched list.
- When your bounce rate starts climbing. For cold email, stay under 2%.
- On a regular schedule for any list you send to often.
Regular cleaning is what people mean by email hygiene: keeping only addresses that exist and can receive your mail. It's the simplest way to reduce your bounce rate. To keep bad addresses out in the first place, verify new sign-ups in real time with the API.
Clean up your email list where it already lives
You don't have to export and re-import by hand.
Email list cleaning vs email verification
They use the same checks. Email verification answers the question for one address. Email list cleaning runs those checks on a whole file and gives you back a list you can send to. You'll also see it called email scrubbing or using an email list cleaner. It's the same job.
To check a single address, use the free email checker. To see if an address is a throwaway inbox, use the disposable email checker.
Email list cleaning FAQ
It checks every address on your list and removes the ones that would bounce or hurt deliverability: invalid, disposable, duplicate and role-based addresses. Giggal also resolves catch-all addresses to valid or invalid instead of marking them risky.
One credit per address, catch-all checks included. 10,000 addresses cost $9.90, and your first 1,000 credits are free. Credits never expire.
Yes, up to 1,000 addresses. Every new account gets 1,000 free credits, no card needed, and they never expire. After that, 10,000 addresses cost $9.90.
Most lists come back in minutes.
No. The checks talk to the receiving mail server and stop before any message is sent. Your contacts never see anything.
Each one is checked and returned as valid or invalid, for the same 1 credit. You keep the real contacts and drop the dead ones.
CSV or Excel, up to 50,000 addresses per file. You download the clean list as a CSV.
Yes. Email scrubbing, list cleaning and email hygiene all describe the same job: removing addresses that won’t receive your mail.
Unknown means the mail server didn’t give a clear answer, often because of greylisting. Try again later. Credits for unknown results are refunded.
Clean your email list in minutes
1,000 free credits, no card needed. Up to 50,000 addresses per file.
Related tools and guides
Free email checker
Verify a single email address: syntax, MX records and a live SMTP mailbox check.
Disposable email checker
Detect temporary, fake and throwaway inboxes across 100,000+ domains.
Catch-all email verification
How Giggal resolves accept-all business domains to deliverable or undeliverable.
How accurate email verification is
What the 97–99% accuracy claims measure, and how to test a verifier on your own list.
Why cold emails bounce
The common causes of hard vs soft bounces and how to read SMTP response codes.
How to reduce email bounce rate
What causes a high bounce rate and how to bring it down.
Good bounce rate for cold email
Under 2% is healthy. What to do at 2–5% and above 5%.
Email verification API
Check addresses at sign-up or clean files from your own code.