Verify email addresses with Email Verifier

Check a pasted list, CSV file, audience, or CRM selection, understand Valid, Risky, Unknown, and Invalid results, and export or reuse them.

Email Verifier checks whether email addresses are likely to receive mail before you send to them. Use it when you import a list, prepare a campaign audience, or want to clean up CRM contacts so fewer messages bounce.

Before you begin

Access: anyone who can open Email can view saved results. To prepare or start a check, you need Email edit permission. If you only have view access, the page says You can view results. Email edit permission is required to prepare or start checks.
Credits: new checks use workspace credits. The balance shown under Available to this workspace is what the verifier can use. Reused recent results and checks that end without an answer are free.
Your list: have the addresses ready as pasted text, a CSV or TXT file, a saved audience, or a set of CRM leads or people.
Consent is separate: a valid address does not mean the person agreed to hear from you. Keep checking consent and unsubscribes before any send.

Where to find it

Open Email → Email Verifier. The page has up to three tabs:

Verify emails – start a new check.
History – reopen earlier runs or look up a single address.
Credit usage – see verification spending. This tab appears only if you can view billing.

You can also start a check from an audience, a campaign draft, or CRM. See Verify from an audience, a campaign, or CRM.

Step 1: Choose the addresses to check

Under What would you like to check?, pick one source.

Paste emails

Select Paste emails.
In Email addresses, paste one address or a list. Separate them with new lines, commas, or semicolons. You can also paste columns straight from a spreadsheet.
Keep pasted lists to 50,000 emails. For bigger lists, upload a file instead.

Upload a CSV or TXT file

Select Upload file, then drop a file on the page or browse for it. Files can be CSV or TXT, up to 20 MiB, 50,000 rows, and 500 columns, in UTF-8 or UTF-16.
Not sure about the layout? Select Download sample CSV.
Under Review your columns, confirm the Email column. Spacebrain may pre-select it and label it AI suggested · review before continuing. Check it yourself.
Tick or clear First row is a header, and pick the Separator (Comma, Semicolon, or Tab) if the preview looks wrong.
Optionally choose a Name column (optional).

You can keep other columns, such as names, companies, or notes. Only the email column is checked, and every original column is kept for export. The preview shows the first five rows.

Choose an audience

Select Choose audience.
Search in Find an audience or list, then pick one from Choose audience. Each option shows whether it is Dynamic or a Saved list. Only the first 30 matches appear, so type more of the name if you don't see yours.

Reviewing an audience takes a snapshot of its current addresses. Verification does not subscribe anyone or change who is in the audience.

Decide whether to recheck recent results

By default, addresses that were checked recently are reused for free, and duplicates are checked only once. Tick Recheck recently verified addresses too only if you need fresh results. This can cost extra credits, and the new maximum is shown before you confirm.

When you're ready, select Review emails. Preparing a review is free and does not start any paid checks.

Step 2: Review the list and the maximum cost

The Review your emails screen shows what will be checked and the most it can cost.

The top of the page shows how many unique emails were found. If some rows are missing an address or are badly formatted, a link such as "12 missing or invalid emails — review" lets you see them. Rows marked Needs correction won't be checked.
The Maximum verification cost panel shows Up to a number of credits, plus a breakdown: Submitted, Duplicates, Malformed or missing input, Reused free, Estimated repeat cost avoided, New checks, and Credits per new check.
Review valid until shows when this cost review expires.

To start, select the button that reads Verify followed by the number of emails and the credit maximum. If the review has expired, select Refresh cost review first.

If you don't have enough credits, the page tells you how many more are needed and says: Add credits or prepare a smaller list. Add credits under your workspace billing, then come back. See Workspace billing and usage.

Step 3: Follow live progress

Checks run in batches. You can leave the page; your progress and credit receipts are saved. The run shows one of these statuses:

Status	What it means
Ready to review	The cost review is ready. Nothing has been charged.
Queued	Waiting for a free slot.
Checking emails	Results are arriving in batches.
Paused	No new batches will start. A batch already sent may still finish.
Waiting for credits	Paused until enough credits are available. Add credits, then select Resume.
Waiting for permission	Paused because verification access isn't available. Ask a workspace admin to check permissions and settings.
A new cost review is needed	Select Refresh cost review before more checks can start.
Stopping remaining checks	No more batches will start.
Stopped	You stopped the run.
Completed	Every address has a result.

While a run is active you can use Pause after current batch, Resume, or Stop remaining checks. A batch that was already sent can still finish and use credits.

How credits are handled

Credits for each batch are set aside while it runs. Unused credits are returned. The receipt panel shows Advanced, Returned, and Still set aside. Select View credit receipts to see each entry.

Step 4: Understand the results

Use the result buttons (All, Valid, Risky, Invalid, Unknown, Pending) to filter the list.

Result group	What it means	What to do
Valid	The address was classified as valid (Valid address).	Safe to use if you have consent. Delivery is still not guaranteed.
Risky	The address may accept mail but could still bounce or hurt your sender reputation. This covers Catch-all domains, Role address (like info@ or support@), Disposable addresses, and Inbox full.	Send with care, or leave these out of large campaigns.
Invalid	The mailbox doesn't exist (Invalid), has been deactivated (Disabled), or is a known Spam trap.	Don't send to these.
Unknown	No definite answer came back. This is not the same as invalid.	You weren't charged. Open the address to see why, then retry later if needed.
Pending	Not checked yet.	Wait for the run to finish.

For more detail, filter by Result, Verification source (Reused free or New results), or Reason. Select any address to open Address result, which shows Last verified, Reusable until, Credits, Why, and a Next step.

Why a catch-all address is Risky, not Valid

Some domains accept mail for every address, so the checker can't confirm that one specific mailbox exists. Mail might arrive, or it might bounce later.

Step 5: Export or use the results

Export filtered results downloads the addresses that match your current filters.
Export with original columns keeps your file's extra columns, duplicates, and rows with missing emails, so you can match results back to your spreadsheet. Duplicates don't add charges.

Exports include only the results available at that moment. If the run is still in progress, export again when it finishes.

Where your workspace supports it, Use these results opens two options:

Create an audience from CRM contacts: choose Contact type (Leads or People), check the eligible count, enter an Audience name, and select Create audience. Only recent valid results are used. Changed emails, opt-outs, and suppressed contacts are left out.
Emails outside your CRM: select Review import to open the People import wizard with the valid external emails. Importing does not subscribe anyone or send email.

Verify from an audience, a campaign, or CRM

Audiences: in an email workspace, the audience list and the audience page show a Verify emails button. It prepares a free cost review. After the check, select Return to audience.
Campaign drafts: on the Audience step of a new campaign, select Verify emails under the chosen audience. When you're done, select Return to campaign draft.
CRM leads and people: when CRM email verification is turned on, select leads or people in the list and choose Verify emails in the selection bar (up to 5,000 at a time). A contact's page can show its latest result as Recent result or Out of date.
Turn CRM checks on or off: on the verifier page, the CRM email verification setting (Enabled or Off) controls checks from CRM and automations. Contacts always save right away, whatever the setting.

Retry unresolved addresses

After a run finishes, any addresses without a final answer are listed under "unresolved emails · retry guidance", with a reason and advice for each group:

Could not reach the provider, or a reason that mentions the time limit: try again later.
Provider quota used up or rate-limit reasons: wait before retrying. Repeated attempts won't help.
Verification not configured or rejected credentials: contact support before retrying.
Run stopped before this check: review the remaining emails if you still want them checked.

Select Review unresolved emails for retry to prepare a new, free cost review. Only a retry that returns a definite answer may use credits. Addresses that already have a confirmed result are not checked again.

Check history and spending

History → Runs: filter by Source (Pasted emails, File upload, Audience snapshot, CRM, Automation) and Run status, then open a run.
History → Emails: under Has this address been verified?, enter an address and select Look up. This is free and never starts a check.
Credit usage: set From (UTC) and Through (UTC), select Apply dates, and use Export usage CSV if you need a record. AI usage is tracked separately.

The Ask AI box answers questions about lists, results, and credits in Orbit. Asking a question never starts a check.

If something goes wrong

What you see	What to do
Choose a CSV or TXT file up to 20 MiB.	Save the file as CSV or TXT, or split it into smaller files.
This text is too large to paste.	Upload the list as a file instead.
The Verify button is disabled	You may lack credits or edit permission, or the review expired. Read the message above the button.
New checks are temporarily unavailable.	Wait and try later. You can still prepare a review and view saved results.
Progress could not be loaded.	Select Refresh. The run keeps going on the server.
Many results are Unknown	You weren't charged. Check the reasons, then use the retry review later.
Email details have expired	Old runs keep their totals and receipts, but address details are removed after the retention period. Run a new check if needed.