Hard Bounce vs. Soft Bounce: What the Difference Costs You
Hard bounces are dead addresses. Soft bounces are maybes. Here is how to tell them apart, what each does to your sender reputation, and what to do about both.
ReadUpload your contacts and every suppression file you have: bounces, unsubscribes, complaints, blocks. Seven minutes later, download a clean CSV with every column exactly where you left it.
Works with the export from
We do not ping servers and guess. We remove the addresses you already know are bad, from the file you already have, and hand it back the way you gave it to us.
Any CSV, any columns, any size. First name, last name, tags, custom fields. We find the email column and leave the rest alone.
Bounces from one platform. Unsubscribes from another. A complaint export, a blocklist, a plain text file of addresses to drop. Add them all at once; we merge and de-duplicate them.
Every suppressed address removed, matched case-insensitively. Every other row and column untouched. Re-import, send, and watch the bounce rate fall.
Stop running the same cleanup three times. Drop in every export you have and clean against all of them in a single pass.
Names, tags, purchase history, custom fields. The cleaned file has the same structure as the original, minus the bad rows. Re-import without remapping.
Catches gamil.com, yaho.com and the rest of the typo family, suggests the fix, and flags addresses that look like spam. You approve every change before export.
Photograph a stack of business cards or a sign-in sheet. Get back a CSV with name, company, email and phone. No typing.
Type a business name and city. We find its website, read the contact page and hand you the public email address, with the page it came from.
Original counts, suppressed counts, cleaned counts, download and preview for every list you have ever run. Rename, archive, delete.
Your files are yours. Stored privately, never shared, never used for anything but your cleaning, deleted after 30 days or the moment you say so.
A verification tool pings a mail server and infers whether an address might accept a message. Sometimes it is right. Sometimes it marks a paying customer "risky" and you delete them. Sometimes a catch-all domain says yes to everything and you keep a thousand ghosts.
Your platform already knows which addresses failed. It told you, in a report you never opened. Suppression cleaning takes that certainty and applies it to the whole list. Use it first. Verify the survivors if you still want to. Either way, you stop paying for the dead on the first pass.
Verification vs. suppression cleaning, explainedFrom a warning-level 4% to well under 1% on the next send. Inbox providers notice within a few campaigns.
Platforms charge by contact. Remove 4,500 dead addresses and you drop a pricing tier that month.
Fewer bounces and complaints mean more of your real subscribers see the message, not the spam folder.
Open and click rates stop being diluted by addresses that could never open anything.
Pro is $19.99 a month for unlimited lists, unlimited projects, the AI Email Fixer, Image to CSV, the Email Finder and the archive. Cancel whenever you like. The free account lets you look around first.
Billed monthly through Stripe. We never see your card number.
Create your free accountThen upgrade when you are ready to clean. Full pricing details
Pick your list size. We will show you the math, then send you a one-page cleanup plan for your platform.
Fifty-seven guides and thirty-five articles on bounces, suppression, reputation and the cost of a list nobody cleans.

Hard bounces are dead addresses. Soft bounces are maybes. Here is how to tell them apart, what each does to your sender reputation, and what to do about both.
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Industry bounce-rate benchmarks, the thresholds inbox providers actually enforce, and a simple way to find out which side of the line you are on.
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Suppression lists explained in plain English: bounces, unsubscribes, complaints, and how to merge and use them before every send.
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Every bounced address on your list is billed, counted and ignored. A tour of the quiet theft happening inside your email platform.
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It was born on a signup form in 2019. It died when its owner changed jobs. Nobody told you. Here lies the typical address on your list.
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How a few hundred bad addresses can get an entire domain locked up, and the parole process nobody tells you about.
ReadCreating an account is free, and you can look at everything. Cleaning a list requires the Pro plan at $19.99 a month. There is no contract; cancel from your billing page whenever you like.
Every address that appears in any suppression file you upload: bounces, unsubscribes, complaints, blocks, or any list of addresses you want gone. Matching is case-insensitive and ignores surrounding spaces. Nothing else is touched. Every other row and column of your original file comes back exactly as it went in.
No. We remove addresses you already know are bad, using the suppression exports your platform gives you. That is certain where verification is a guess. If you want verification as well, run it on the cleaned list afterward; you will pay to verify far fewer addresses.
CSV for the contact list, with a header row that includes a column containing the word "email". Suppression lists can be CSV with any columns or plain text with one address per line; we find the addresses wherever they are. Files up to 50 MB each, up to 20 suppression files per project.
Any platform that exports CSV, which is all of them: Mailchimp, Klaviyo, HubSpot, ActiveCampaign, Constant Contact, MailerLite, Kit, Brevo, SendGrid, Salesforce Marketing Cloud, GetResponse, AWeber, Campaign Monitor, Drip, Omnisend and the rest. The cleaned file imports back into the same tool without remapping columns.
They are stored privately on our servers, used only to produce your cleaned list, never shared or sold, and deleted after 30 days or the moment you delete the project. Full details are in the privacy policy.
Upload your contacts and every suppression file you have. Download a clean CSV with every column intact. Seven minutes, start to finish.