Help centre
How can we help?
Straight answers about cleaning your list, reading your report and getting the clean file back into your email tool.
Getting started
Your first upload, from CSV to clean list.
- How ListBouncer worksUpload a CSV, we check every address against its mail server, and you download a clean list. Here's each step.
- Preparing your CSVWhat file to upload, how we find the email column, size limits, and what happens to duplicates and broken rows.
- Checking a single email addressUse Check one email for a live answer on one address, with typo suggestions. It only uses a credit when we get a definite answer.
Understanding your results
What each result, grade and number on your report means.
- What each result meansSafe, Major provider, Risky, Will bounce and Unknown, explained in plain English, with what to do about each.
- Your list health gradeHow we grade your list from A to F, why you see two grades, and what the projected bounce rate means.
- Why Yahoo, Outlook and AOL are "Major provider"Some big providers block mailbox-level checks. Here's why we put them in their own group instead of calling them invalid or unknown.
- Catch-all domains and shared inboxes (Risky)What catch-all and role addresses are, why we can't confirm them, and when it's fine to send to them.
- Unknown resultsWhy some mail servers don't give a clear answer, and what to do with addresses we couldn't confirm.
Exporting and importing
Getting contacts out of your email tool, and the clean list back in.
- Exporting your contacts from MailPoetGet your MailPoet subscribers into a CSV in under a minute, ready to clean.
- Exporting your contacts from MailchimpExport a Mailchimp audience or segment to CSV, and which file in the download to upload.
- Exporting your contacts from KlaviyoExport a Klaviyo list or segment to CSV, ready to clean.
- Exporting from Brevo, Kit, MailerLite, ActiveCampaign, Shopify and WooCommerceWhere the export button lives in other popular email tools and stores.
- Building and downloading your clean listPick which groups go in your file, choose a format for MailPoet, Mailchimp or Klaviyo, and add a result column if you want one.
- Removing bad addresses from your email toolHow to stop sending to the addresses we flagged as Will bounce, in MailPoet, Mailchimp, Klaviyo and other tools.
Credits and billing
How credits are counted, packs, and refunds.
Account, privacy and emails
Your data, reminders and account settings.
Still stuck?
Send us a message. A real person reads every one and replies by email.