How Many Verifications Do You Need Each Month? Sizing a Plan
Pick a plan from your real sending pattern, not from a guess. A simple way to size monthly email verification, with worked examples for four typical senders.
A monthly plan is only a good deal if you use most of it. Too small and you pay for extras or wait for the next month. Too large and you pay for checks that disappear unused. Sizing it takes five minutes if you start from what you actually do.
What counts as one verification
Each address you check uses one verification, including addresses whose result turns out to be unknown. Addresses with an invalid format and short outages do not use one. Uploading a duplicate costs a check for no new information, so remove duplicates first.
The two numbers you need
- Your one-off cleaning: the size of the list you must clean the first time.
- Your monthly flow: new addresses per month, from sign-ups, forms, imports and outreach.
Four typical senders
- A small newsletter, 8,000 subscribers and about 400 new sign-ups a month. First clean takes one month of a 25,000 plan, after that the flow uses a small part of it.
- A growing SaaS, 1,500 sign-ups a month and a 30,000-address trial list. A 60,000 plan covers the flow and lets you clean the old list within the first two months.
- A sales team doing outreach, 20,000 new contacts a month from several sources. A 25,000 plan fits if lists are verified once, before sending.
- An agency cleaning lists for clients, with bursts of 100,000 at a time. A larger plan, or spreading the work over several months, avoids paying for peaks all year.
How to size it
- Count your current list and remove duplicates.
- Estimate new addresses per month from the last three months.
- Add a 20 percent margin for re-checks before big campaigns.
- Compare the total with the plan sizes on the pricing page. Mailbite monthly plans cover 25,000, 60,000, 150,000 and 300,000 verifications.
Starting small is fine
Start with the smaller plan if you are unsure. You can move up when you see how many checks you really use. A free plan also gives 100 verifications every month, which is enough to test a handful of addresses with the single email checker.
Frequently asked questions
What if I run out of verifications in a month? You can move to a larger plan. Check the pricing page for the current options.
Do unused verifications carry over? Plans are monthly, so plan on using what you pay for in the month.
Is one big clean enough? For a list that only grows slowly, a first clean plus checking new sign-ups at entry works well. Bulk verification handles the first pass.
