Verify a Skrapp.io Export Before You Send: Valid vs Catch-all Rows
Re-verify a Skrapp.io export on the day you send it, and treat its Catch-all rows as a separate, riskier batch. Skrapp marks each found address Valid or Catch-all and charges a credit for both. Valid rows passed Skrapp's check when it looked; Catch-all rows sit on servers that say yes to every address, so nobody can confirm the mailbox. Export with the status column, run every row through a live SMTP check, send valid rows first, and keep catch-alls to a small second wave.
What Skrapp says
From Skrapp.io's pricing page, read 8 November 2026:
- "Each email credit allows you to find one professional email address, marked as either 'Valid' or 'Catch-all'. Or verify a single email address."
- "You will use your credits when the Email Finder returns an email address along with an email verification status."
- "Your account is not charged for email credits labeled as 'Invalid' or 'Unknown' ... We only charge for deliverable emails marked as 'Valid' or 'Catch-all.'"
- Unused credits roll over to the next month, and team members share one credit pool.
So a Skrapp list is two lists in one file: rows Skrapp could confirm and rows it couldn't. The page doesn't say how often a Valid result is re-checked, so read "Valid" as "valid when Skrapp checked".
Why Skrapp lists still bounce
- Catch-all domains. Skrapp calls them deliverable and bills for them, but a catch-all server accepts every address during a check. Some of those mailboxes don't exist, and the bounce arrives after you send. See what a catch-all domain is.
- Time. A list built from Sales Navigator in the spring holds people who changed jobs by autumn. B2B data decays every month (B2B contact data decay).
- Reused lists. The same Skrapp list loaded into a second campaign, a second sequencer or a client's account.
The pre-send routine
1. Export with the status column
Export your Skrapp list to CSV and keep the email status column alongside name, company, domain and LinkedIn URL. Then split it into two files: Valid and Catch-all. If you're not sure how a domain behaves, the bulk catch-all checker tests the domains themselves.
2. Dedupe and cap per company
Remove repeats with remove duplicate emails and cap contacts per account with limit contacts per company. Ten people from one domain in one morning is a pattern spam filters notice.
3. Verify both files
Upload each file to the verify page. Every address gets a live SMTP mailbox check:
| Result | What to do |
|---|---|
| Valid | Main sequence |
| Risky (catch-all) | Second batch, best grades first |
| Risky (role, disposable, full inbox) | Drop for cold outreach |
| Invalid | Suppress, don't retry |
| Unknown | Re-check tomorrow |
SimpleVerifier never calls a catch-all address valid. It reports it as risky with a grade and the reason, so you can send the best-scored rows first (catch-all scoring).
4. Send in waves
Valid rows first. Catch-all rows a day later, a few hundred at most, and stop that wave if hard bounces pass 2%. Most sequencers pause somewhere between 2% and 15% (see bounce rate thresholds by platform), and the damage to your domain starts before the pause.
5. Keep the bounces out of the next campaign
Add every hard bounce and every invalid row to one suppression list and load it into each sending tool. The suppression list merger combines exports from several tools into one file.
What checking costs
- Starter, $9 a month: 2,500 checks.
- Pro, $39 a month: Unlimited email verification.*
- Business, $99 a month: the first 300,000 checks a month at full speed, 5 seats.
- Agency, $249 a month: the first 750,000 checks a month at full speed, 15 seats, client workspaces.
*Pro fair use: the first 100,000 checks a month at full speed, then slower, never cut off. See pricing. Check your list free: 100 checks with a Google sign-in, no card.
More reading: catch-all leads in sequences, clean a Sales Navigator lead list, verify an Evaboot export, and verify your list before cold email.
Common questions
Does Skrapp.io verify emails?
Yes. Its pricing FAQ says the Email Finder returns an address 'along with an email verification status', and Skrapp also sells a separate Email Verifier. The statuses are Valid, Catch-all, Invalid and Unknown.
Does Skrapp charge for catch-all emails?
Yes. Its FAQ says it charges only 'for deliverable emails marked as Valid or Catch-all' and not for Invalid or Unknown ones. So you pay for catch-all rows even though their mailbox can't be confirmed.
Are Skrapp catch-all emails safe to send to?
Not as safe as Valid rows. A catch-all domain accepts any address during a check, so a typo or a departed employee looks the same as a real mailbox. Send them in a small, separate batch and stop if hard bounces climb.
Do Skrapp credits roll over?
Its FAQ says unused credits roll over to the next month and that you keep your credits if you cancel your subscription.
Check your list before you send
Real mailbox checks over SMTP, and nothing is sent to the address. Sign in with Google and your first 100 email checks are free, no card. Plans for bigger lists are on the pricing page.