Bookkeepers & accounting firms

Clean your client list before year-end mail goes out.

Year-end statements, 1099 and W-9 reminders, tax-season newsletters and new-client outreach all go to lists that quietly rot: closed businesses, changed bookkeepers, typos from intake forms. Upload a CSV to Verifly, get every address marked deliverable, undeliverable or risky, and send only to the good ones. 100 free checks to try, then 5,000 for $10. No subscription.

No card needed · 500 free credits with a work email · credits never expire

Or call the API from your own scriptAPI
curl -X POST "https://verifly.email/api/v1/verify/batch" \
  -H "Authorization: Bearer vf_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{"emails":["owner@smallbiz.com","office@clientco.com"]}'

Real-time SMTP mailbox checks

Single, batch, and async bulk verification

Disposable, role account, and catch-all detection

Pay-as-you-go credits with no subscription lock-in

Search fit

Built for email list cleaning for bookkeepers

Use Verifly when you need a simple API, predictable pricing, and clean JSON results before emails hit your product, CRM, or campaign tool.

Year-end: verify client contacts before statements and 1099 reminders
Prospecting: clean purchased or scraped US small-business lists before cold outreach
QuickBooks / Xero / CRM exports: one CSV in, a clean CSV out
Newsletter tools (Mailchimp, Constant Contact): remove dead addresses that hurt delivery

Why bookkeeping lists go bad so fast

Small businesses close, change domains and switch staff constantly. A client list that was clean last January can easily have a noticeable share of dead addresses by December. Every hard bounce tells Gmail and Outlook that your firm sends to bad addresses, and that pushes your important mail (statements, deadlines, invoices) toward spam.

Cleaning takes minutes and costs a few dollars. It is cheaper than one missed deadline email.

How it works (no code needed)

Sign up, upload a CSV from your dashboard, and download the result with a status column.

  1. Create a free account (100 checks included, no card).
  2. Export your client or prospect list from QuickBooks, Xero, your CRM or a spreadsheet as CSV.
  3. Upload it in the Verifly dashboard and wait for the job to finish.
  4. Send only to deliverable addresses; review risky ones; delete undeliverable.

Pricing for a typical firm

A firm with 2,000 clients and contacts needs the $10 Starter pack (5,000 checks). Firms cleaning prospect lists of 20,000+ usually take Basic (25,000 for $37). Credits never expire, so leftovers carry to next year. Questions: hello@veriflyemail.com.

FAQ

Frequently asked questions

Do I need a developer?

No. CSV upload in the dashboard is enough. The API is optional.

Is it a subscription?

No. One-time credit packs, no auto-renew, credits never expire.

What does a risky result mean?

The mail server accepts everything (catch-all) or the result is unknown. Send to these carefully or in a small batch first.

Can I pay outside the US?

Yes. Stripe charges in USD and your bank converts; crypto checkout is also available.

Ready to wire this?

Start free with 100 credits, mint a vf_ API key, and paste the recipe above. Buy a pack only when you need more, credits never expire.