Run a check and watch it live

Once your list is ready, running it is one click.

Before you start

When you create a list, we quickly tidy it up first, free of charge:

• Exact duplicate addresses are removed, so you never pay to check the same email twice.
• Anything that is not a valid email is skipped at no cost.

We then show you how many addresses will be checked and what it will cost before you commit.

Start the run

1. 1Open your list and press Start.
2. 2Watch the progress bar fill as we work through your addresses.
3. 3See the running totals update live — safe, risky, and do-not-send counts climb as results come in.
4. 4Results appear in the table as they are ready. You do not have to wait for the whole list to finish to start looking.

Need to stop?

You can press Cancel at any time while a run is going. We stop right away, and you keep all the results we found up to that point.