Checking a Seminar or Purchased Prospect List Before Your First Invite
Before a first seminar invite, verify the prospect list, send to valid rows in a small batch and hold risky rows for later. A first send to unknown addresses is where a sending domain is most exposed. The email verification for insurance and financial advisors page covers the check, and the purchased email list checker gives a quick read on the list itself.
Step 1: check where the list came from
Know how the addresses were collected. A seminar sign-up sheet is different from a bought list, and the rules on contacting people differ by location and by how you got the data. This post is not legal advice; confirm what applies to you. Our guide to insurance agent email and phone lists covers the sources.
Step 2: remove duplicates
Use the duplicate email remover. Sending two invites to one person looks careless.
Step 3: verify
Upload the CSV on the verify page. Reasons you will see:
- Mailbox not found, No mail server, Typo domain, Disposable address: invalid; drop them.
- Role address: a shared inbox, not a person; leave out of personal invites.
- Accepts all addresses: risky; the domain takes anything, so no mailbox can be confirmed.
Step 4: handle catch-alls with care
Business domains are often catch-all. A guessed address there can pass a syntax check and still bounce. See what to do with catch-all emails and the bulk catch-all checker.
Step 5: start small
Send the first invite to a slice of valid rows, check the bounce count, then widen. If it is higher than expected, use the bounce doctor to read the messages before you send more. The guide to mortgage loan officer lead lists covers a similar staged approach.
What this cannot do
- It says nothing about whether recipients agreed to be contacted.
- Yahoo, AOL and Microsoft consumer mailboxes cannot be confirmed, so those rows come back risky.
- A valid result means the mailbox exists; it does not mean the person will attend.
Check the list
Upload it on the verify page: the first 100 checks are free with a Google sign-in, no card. See bulk email verification and pricing.
Common questions
Why check a prospect list before the first invite?
A first send to unknown addresses is where bounces and spam traps can hurt a sending domain. A check removes the dead ones before you start.
What should I hold back from the first send?
Rows marked Accepts all addresses and Role address. They are risky, not invalid, so send in a small batch after the valid rows.
Can verification make a bought list safe?
No. It removes addresses that cannot receive mail. It does not tell you whether the recipients agreed to hear from you, and the rules differ by place.
How many should I send on day one?
A small batch of valid rows, then more as you see how it goes.
How much does it cost?
The first 100 checks are free with a Google sign-in, no card.
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.