Cold email infrastructure cost calculator: domains, mailboxes and tools
In short: Type how many sending domains and mailboxes you run and what each line costs, and get the monthly and yearly total, the cost per mailbox, the cost per 1,000 sends and the share each line takes. No prices are built in. Limit: It uses only the prices you type and has no provider data.
Enter your number of sending domains, mailboxes per domain, the price of each domain, mailbox, sequencer, warm-up tool and verification plan, and how many emails a mailbox sends a day. The calculator returns the monthly and yearly total, the cost per mailbox and per 1,000 sends, and each line's share. Prices are all yours.
Price: this tool is free. Checking a whole email list is from $9/mo, and the first 100 checks are free with Google, no card. Check your list free nowSee pricing
Every number below is an example, not a real price. Replace them with the figures from your own invoices.
- Per month
- $132.00
- Per year
- $1,584.00
- Per mailbox per month
- $22.00
- Per 1,000 sends
- $33.33
6 mailboxes sending about 3,960 emails a month.
Sending domains
- Per month
- $3.00
- Share
- 2.3%
Mailboxes
- Per month
- $30.00
- Share
- 22.7%
Sequencer
- Per month
- $40.00
- Share
- 30.3%
Warm-up
- Per month
- $20.00
- Share
- 15.2%
Email verification
- Per month
- $39.00
- Share
- 29.5%
Other
- Per month
- $0.00
- Share
- 0.0%
| Line | Per month | Share |
|---|---|---|
| Sending domains | $3.00 | 2.3% |
| Mailboxes | $30.00 | 22.7% |
| Sequencer | $40.00 | 30.3% |
| Warm-up | $20.00 | 15.2% |
| Email verification | $39.00 | 29.5% |
| Other | $0.00 | 0.0% |
Formula: domains cost yearly price / 12 each; mailboxes cost domains x mailboxes per domain x monthly price; the other lines are added as entered. Per 1,000 sends = monthly total / monthly sends x 1,000. Taxes, discounts and lead costs are not included.
Sample result
With the example numbers, six mailboxes cost $132 a month, or $33.33 per 1,000 sends.
- Per month
- $132.00
- Per mailbox
- $22.00
- Per 1,000 sends
- $33.33
What this means for you
Verification is 29.5% of that total, and the sequencer is the largest line.
- Only your prices
- Per mailbox and per 1,000 sends
- Share of each line
- Yearly total
- Cost
- Mailboxes
- Calculator
By SimpleVerifier Team · Last updated · Runs in your browser; nothing you paste is sent to us
Verification is one line of the bill.
- Check the lists you send to, so the other lines are not spent on addresses that bounce.
- Upload or paste it at /verify. Every address gets a live mailbox check, and the first 100 email checks are free with a Google sign-in, no card.
How do I work out what my sending setup costs?
- Count your sending domains and mailboxes per domain.
- Enter what you pay for a domain per year, a mailbox per month, and the monthly price of your sequencer, warm-up tool and verification plan. The pre-filled numbers are examples.
- Enter emails sent per mailbox per day and sending days per month.
- Read the total, the cost per 1,000 sends and which line is biggest.
Example
- You enter
- Example numbers: 3 domains at $12 a year, 2 mailboxes each at $5 a month, a $40 sequencer, $20 warm-up, $39 verification, 30 emails per mailbox per day, 22 sending days.
- You get
- $132.00 a month and $1,584.00 a year for 6 mailboxes, $22.00 per mailbox. They send about 3,960 emails a month, which is $33.33 per 1,000 sends. Verification is 29.5% of the total.
- Limits
- Runs in your browser. The prices are examples you replace with your own.
How is the cost worked out?
Domains cost the yearly price divided by twelve for each domain. Mailboxes cost their monthly price times domains times mailboxes per domain. The sequencer, warm-up tool, verification plan and any other line are added as monthly amounts. The total divided by the monthly sends gives the cost per 1,000 sends, where monthly sends are mailboxes times sends per day times sending days.
Which line is worth comparing first?
With a lot of mailboxes, the mailbox line usually grows fastest, and the table shows each line's share so you can see it. To compare verification credits with a plan, use the credits vs monthly plan calculator; for how many mailboxes a daily volume needs, use the cold email volume calculator.
What does the calculator leave out?
Taxes, discounts, setup fees, the lead data itself and your own time are not included, and it does not know what any provider charges. Enter amounts from your own invoices.
Who uses this tool, and for what?
- Cold email senders
- Cost out a new batch of domains and mailboxes before buying them.
- Agencies
- Price the sending setup for a client from their numbers.
- Sales ops
- Show what share of the setup goes on tools versus mailboxes.
What can’t this tool tell you?
- It uses only the prices you type and has no provider data.
- Taxes, discounts, setup fees and lead costs are not included unless you add them to Other.
- The cost per 1,000 sends assumes every mailbox sends the daily number you enter on every sending day.
- It says nothing about replies, bookings or revenue.
Common questions
- Does the calculator know what providers charge?
- No. It has no prices; every number is one you type. The ones shown to begin with are examples.
- How are yearly domain prices handled?
- Divided by twelve and shown as a monthly amount.
- What are monthly sends?
- Mailboxes times emails per mailbox per day times sending days a month.
- Can I leave a line at zero?
- Yes. A line left empty or at zero costs nothing and drops out of the shares.
- Does it include lead costs?
- No. Add them in the Other line if you want them in the total.
- Is my data sent anywhere?
- No. The sums run in your browser.
A tidy list can still be full of dead addresses.
Extracting, deduplicating and syntax checks all work on the text of an address. None of them can tell whether the mailbox exists. Only the server that hosts it can answer that, through an SMTP check, and that is what the paid product does.
- Upload the cleaned file as it is: CSVs up to 100,000 rows
- A real SMTP mailbox check on every row, with catch-all detection
- Small list? Starter at $9/mo covers 2,500 emails a month, cancel anytime
Plans from $9 a month, cancel anytime, no contract. Sign in with Google and your first 100 email checks are free, no card. The free tools stay free either way.