Verify an email list before a cold email campaign

A list you bought, scraped or built a year ago will have dead addresses in it. Each one bounces. Inbox providers notice a high bounce rate and start to trust your mailboxes less. A few minutes of checking before you send protects weeks of warm-up.

What the verifier checks

Verify a list in ReplyDak

1. 1

   Sign up free

   Create an account at app.replydak.com/signup. No card is needed, and the verifier is free for your first 3 months.

2. 2

   Export your list as CSV

   From your CRM, spreadsheet or lead tool, save the prospects as a CSV file with an email column.

3. 3

   Upload it to Verify

   Open Verify in the dashboard and upload the file. One list can hold up to 5,000 addresses, and you can check up to 10,000 a day. Split bigger lists into parts.

4. 4

   Download the results

   You get the same CSV back with status columns added, so your other columns stay in place.

5. 5

   Remove or suppress bad addresses

   Keep the valid ones for your campaign. Add the invalid addresses to your opt-out list in one step, so they are never emailed by mistake.

6. 6

   Send the clean list

   Load it into Campaigns, or into Instantly or Smartlead with your exported mailboxes.

What it costs

For the first 3 months from sign-up, verification is free with no cap beyond the daily limits. After that it costs about ₹0.02 per address, which is ReplyDak's estimated cost with no markup. You pay from a wallet with top-ups from ₹200. If a job needs more than your balance, ReplyDak tells you before it starts, and nothing is half-done. During the free period, usage still shows at ₹0 on the Usage page so you can see what it would cost later.

Good list habits

• Verify again if a list has sat unused for a while; people change jobs.
• Think twice before emailing role addresses; they often reach a shared team inbox.
• Watch your bounce rate per campaign and stop if it climbs.
• Read the deliverability checklist before a big send.

When ReplyDak is not the right tool

If you need to clean very large lists in one go, ReplyDak's limits of 5,000 per list and 10,000 a day may feel slow, and a dedicated verification service could suit you better. ReplyDak also does not sell lead lists or find new email addresses; it only checks the ones you bring. And no verifier can promise zero bounces, since some mail servers do not say whether a mailbox exists. For a wider view of providers, see ReplyDak vs the market leader.