Verify Your List Before the First Send From a New Domain

A new sending domain has no history, so the first messages are judged on what mailbox providers can see right away. The setup records prove who you are. The list shows how you behave: how many addresses bounce, how many people engage, how many complain. A clean first list helps; a dirty one makes the domain look careless on day one. Verify the list on the verify page before the first send. The first 100 checks are free on a Google sign-in, no card.

Two jobs, two checks

• Setup: the new domain readiness check covers the records and basics.
• List: this guide. Verification removes what would bounce.

Email warm-up vs email verification explains why one does not replace the other.

Step 1: Choose who goes first

Pull the addresses that have been most recently active: opened, clicked, bought or replied lately. If you have no engagement data because this is a new platform, choose the most recent sign-ups. Keep the oldest rows for later, or for a separate old-list plan.

Step 2: Verify those rows first

Upload them to the verify page. A smaller file is quick, and you can read every result. Email verification statuses explained covers each result.

Step 3: Send small, then grow

Send the first batch to valid addresses only. Read bounces and replies. If they are clean, send a larger batch the next day, and keep going. If a bounce shows up, find out why before sending more. The bounce message analyzer helps read it.

Step 4: Keep risky rows for later

Risky addresses are often on domains that accept all mail, so they may be real, but you cannot confirm it. They go in a later batch once the domain has a few clean sends behind it. Catch-all emails: what to do explains why.

Step 5: Keep a record

Write down each batch's size, the bounce count and the date. If a provider starts filtering you, the record tells you which step to repeat. The inbox placement seed test is one way to check where messages land.

What no list can fix

If the domain's setup is wrong, a clean list will not rescue it. If the content is what people mark as spam, nor will it. The list is one input, and the one you control completely.

Check the list

SimpleVerifier Pro is $39 a month. The first 100,000 checks a month run at full speed, then they run slower, and you are never cut off, so one list and every file after it fit in the same plan. Start with 100 free checks, no card, on a Google sign-in. See the pricing page.