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Clean your email list before the next campaign

Upload your list and remove the addresses that will bounce. Keep the risky ones you choose, with the reason for each.

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simplecold.com / dashboard / bulk-verifications
leads-october.csvExample · 4,212 rows
2,991deliverable842risky379undeliverable
first_namecompanyemailResultReason
JaneAcme[email protected]DeliverableThe mailbox exists and accepts mail.
TomBrightlane[email protected]RiskyThe domain accepts mail for any address, so this mailbox can't be confirmed.
DanaNorthwind[email protected]RiskyThis is a shared role address, like info@ or sales@, not a person.
MikeFreelance[email protected]UndeliverablePossible typo. Did you mean [email protected]?
AnaOld Studio[email protected]UndeliverableThis domain can't receive email.
SamLegacy[email protected]RiskyThe mail server would not confirm this address.
Your columns stay as they were, headers included. Result, Reason and the other result columns are added to every row.
  • Six checks on every address
  • A plain reason with every result
  • Slow servers never cost a second credit
  • 200 free credits, no card

What we find

What cleaning takes out of your list

Each problem gets a category and a reason, so you know why a row was removed or flagged.

Undeliverable

Missing mailboxes

The mail server says the mailbox doesn't exist. Mail to it would hard bounce.

Undeliverable

Typos

Misspelled domains like gmial.com, with the likely fix suggested.

Undeliverable

Dead domains

Domains that don't exist or have no mail server. Mail to them always bounces.

Risky

Throwaway inboxes

Disposable addresses that stop working soon after sign-up.

Risky

Shared role addresses

info@, sales@ and support@ inboxes nobody in particular reads.

Risky

Catch-all domains

Domains that accept every address, so the mailbox cannot be confirmed.

How it works

Clean a list in three steps

Works with exports from any CRM, email platform or spreadsheet.

  1. 01

    Export your list

    Download contacts from your email tool or CRM as a CSV.

  2. 02

    Upload and check

    Every address goes through the same six checks. Duplicates are removed and not charged.

  3. 03

    Import the clean list

    Download the Deliverable rows, or the full list to keep the Risky ones you want.

FAQ

List cleaning questions

Before you clean your first list.

Before every large campaign, and whenever a list has sat unused for a few months.

Still have a question? Talk to us.

Check your list before you send it

Start with 200 free credits. Pay per credit after that.