Pricing checked 12 Oct 2026
Mailfloss pricing
Mailfloss charges $29.00 for 10,000 checks a month as of 12 Oct 2026 ($29/mo plan with 10,000 a month). In full: $29 a month for 10,000 credits, or pay as you go from $8.00 per 1,000 on a 1,000 pack, falling to $1.04 at 2,500,000. SimpleVerifier Pro is $29.99 a month with no monthly cap on email verification, at up to 45 checks a minute.
Source: mailfloss.com pricing page · as of · by SimpleVerifier Team · full Mailfloss vs SimpleVerifier comparison
$8 for a 1,000-credit pack
$29/mo plan with 10,000 a month
One-time pack: 1 × 10,000 emails ($19), credits never expire
Mailfloss plans and credit packs
Every tier on Mailfloss’s pricing page as we read it on 12 Oct 2026. Per 1,000 is the tier price divided by its allowance.
| Route | Volume | Price | Per 1,000 |
|---|---|---|---|
| Subscription | 10,000 a month | $29/mo | $2.90 |
| Subscription | 25,000 a month | $59/mo | $2.36 |
| Subscription | 35,000 a month | $94/mo | $2.69 |
| Subscription | 60,000 a month | $174/mo | $2.90 |
| Subscription | 75,000 a month | $204/mo | $2.72 |
| Subscription | 125,000 a month | $209/mo | $1.67 |
| Subscription | 135,000 a month | $244/mo | $1.81 |
| Subscription | 175,000 a month | $354/mo | $2.02 |
| Subscription | 260,000 a month | $479/mo | $1.84 |
| Subscription | 275,000 a month | $509/mo | $1.85 |
| Subscription | 375,000 a month | $659/mo | $1.76 |
| Subscription | 510,000 a month | $729/mo | $1.43 |
| Subscription | 525,000 a month | $759/mo | $1.45 |
| Subscription | 625,000 a month | $909/mo | $1.45 |
| Credit pack | 1,000 credits | $8 | $8.00 |
| Credit pack | 10,000 credits | $40 | $4.00 |
| Credit pack | 50,000 credits | $160 | $3.20 |
| Credit pack | 100,000 credits | $300 | $3.00 |
| Credit pack | 250,000 credits | $500 | $2.00 |
| Credit pack | 500,000 credits | $800 | $1.60 |
| Credit pack | 1,000,000 credits | $1,200 | $1.20 |
| Credit pack | 2,500,000 credits | $2,600 | $1.04 |
Source: mailfloss.com/pricing/, as of 12 Oct 2026. Prices in USD.
Cost at 1k, 10k, 50k and 100k emails a month
A recurring monthly volume on each side’s lowest-cost published route: for Mailfloss, the smallest subscription tier that covers it or the pay-as-you-go pack bought again each month; for SimpleVerifier, one-time packs or Pro, whichever costs less.
| Emails a month | Mailfloss | SimpleVerifier | Lower cost |
|---|---|---|---|
| 1,000 | $8.00Pay as you go: 1,000-credit pack at $8.00 per 1,000 | $9.00One-time pack: 1 × 2,500 emails ($9), credits never expire | Mailfloss, by $1.00 |
| 10,000 | $29.00$29/mo plan with 10,000 a month | $19.00One-time pack: 1 × 10,000 emails ($19), credits never expire | SimpleVerifier, by $10.00 |
| 50,000 | $160.00Pay as you go: 50,000-credit pack at $3.20 per 1,000 | $29.99Pro plan, no monthly cap | SimpleVerifier, by $130.01 |
| 100,000 | $209.00$209/mo plan with 125,000 a month | $29.99Pro plan, no monthly cap | SimpleVerifier, by $179.01 |
- On these published prices Mailfloss costs less than SimpleVerifier at 1,000 emails a month, and the table says so.
- SimpleVerifier one-time packs ($9 for 2,500 emails or $19 for 10,000 emails) never expire but cover email verification only, without the API, finder or phone lookups. Pro includes them.
- Pro has no monthly cap, but runs at up to 45 checks a minute per account, so 100,000 addresses take about 37 hours. Larger lists queue rather than fail.
- “Not published” means Mailfloss’s page did not price that volume; we do not extrapolate. Run your own numbers in the cost calculator.
Free allowance and credit expiry
Mailfloss
- Free allowance
- Not recorded; check mailfloss.com
- Credit expiry
- Mailfloss says its pay-as-you-go credits never expire.
SimpleVerifier
- Free allowance
- The first 100 email checks free after Google sign-in, once per account, no card.
- Credit expiry
- Pro has no allowance to expire. One-time credit packs never expire. Confirmed results are cached for 14 days, so re-checking them inside that window uses nothing.
How Mailfloss meters usage
In Mailfloss’s own framing: monthly plans by volume, or prepaid credits that never expire. What to watch: the plan is sized by monthly volume, so a list that grows pushes you up a tier whether or not the extra addresses are worth checking.
What it does well: Mailfloss is worth keeping if you want verification that runs automatically against your email platform's list rather than as uploads you remember to do.
For small volumes Mailfloss can cost less than Pro: up to 10,000 addresses can be bought from Mailfloss for under $29.99. If that covers your list and you verify it once, Mailfloss may be the better buy.
How to work out what Mailfloss will cost you
- 1
Count how many addresses you verify in a typical month, including re-checks of lists you already cleaned.
- 2
Find the smallest Mailfloss tier whose allowance covers that number in the plans table, and compare it with buying a pay-as-you-go pack of that size, if Mailfloss sells one.
- 3
Check whether unused Mailfloss credits expire before you would use them, and whether the plan meters finding and verifying from the same pool.
- 4
Compare the result with SimpleVerifier: one-time packs at $9 for 2,500 emails or $19 for 10,000 emails, or Pro at $29.99 a month with no monthly cap and a throughput of 45 checks a minute per account.
Common questions
- How much does Mailfloss cost?
- Mailfloss costs $29 a month for 10,000 credits, or pay as you go from $8.00 per 1,000 on a 1,000 pack, falling to $1.04 at 2,500,000. Metering: monthly plans by volume, or prepaid credits that never expire. Prices read from mailfloss.com on 12 Oct 2026.
- How much does Mailfloss cost for 1,000 emails a month?
- 1,000 emails a month costs $8.00 on Mailfloss (pay as you go: 1,000-credit pack at $8.00 per 1,000). On SimpleVerifier the lowest-cost route for 1,000 a month is $9.00 (one-time pack: 1 × 2,500 emails ($9), credits never expire; packs cover email verification only, without the API, finder or phone lookups).
- How much does Mailfloss cost for 10,000 emails a month?
- 10,000 emails a month costs $29.00 on Mailfloss ($29/mo plan with 10,000 a month). On SimpleVerifier the lowest-cost route for 10,000 a month is $19.00 (one-time pack: 1 × 10,000 emails ($19), credits never expire; packs cover email verification only, without the API, finder or phone lookups).
- How much does Mailfloss cost for 50,000 emails a month?
- 50,000 emails a month costs $160.00 on Mailfloss (pay as you go: 50,000-credit pack at $3.20 per 1,000). On SimpleVerifier the lowest-cost route for 50,000 a month is $29.99 (pro plan, no monthly cap).
- How much does Mailfloss cost for 100,000 emails a month?
- 100,000 emails a month costs $209.00 on Mailfloss ($209/mo plan with 125,000 a month). On SimpleVerifier the lowest-cost route for 100,000 a month is $29.99 (pro plan, no monthly cap).
- Do Mailfloss credits expire?
- Mailfloss says its pay-as-you-go credits never expire. How Mailfloss describes its metering: monthly plans by volume, or prepaid credits that never expire.
- Does Mailfloss have a free plan?
- We have not recorded a free allowance from Mailfloss's page, so check mailfloss.com directly. SimpleVerifier gives the first 100 email checks free after Google sign-in, once per account, no card.
- Is SimpleVerifier cheaper than Mailfloss?
- Not always. On these published prices Mailfloss costs less than SimpleVerifier at 1,000 emails a month, and the table says so. For small volumes Mailfloss can cost less than Pro: up to 10,000 addresses can be bought from Mailfloss for under $29.99. If that covers your list and you verify it once, Mailfloss may be the better buy.
- Is SimpleVerifier's Pro plan really unlimited?
- There is no monthly cap on email verifications, but there is a throughput limit: up to 45 checks a minute per account. A 100,000-address list therefore takes about 37 hours to finish. Larger lists queue rather than fail.
Check your own list first
The first 100 email checks free after Google sign-in, once per account, no card. Then Pro at $29.99 a month or Email + Phone at $49.99, cancel anytime.