Comparison

Zapmail vs InboxKit: Pricing, Features and Which to Choose

A side-by-side look at price per mailbox, pre-warmed options, Microsoft support and integrations, using each provider's published terms, plus a third option worth checking.

30 mailboxes · monthly cost
  • Zapmail
    Standard $99Pre-warmed not public
  • InboxKit
    Standard $90Pre-warmed $180
  • JetmailYou're here
    Standard $99Pre-warmed $180
  • Keep your domains
  • DNS re-configured automatically
  • 1-click reconnect to your sequencer

Jetmail at a glance

Built for cold email at scale

mailboxes set up
1M+
domains managed
330k+
average setup time
5 min
customer rating
4.8

Side by side

Zapmail vs InboxKit vs Jetmail: features & pricing

Everything below comes from each provider's public website and help center, checked October 2026. Prices change, so confirm on their site before you buy.

ZapmailInboxKitJetmail
Google mailboxes$39/mo for 10 · $99/mo for 30 · $299/mo for 100 (extra $3.50–$3.00)$3.00/mailbox monthly, $2.50 billed annually; no minimum$39/mo for 10 · $99/mo for 30 · $299/mo for 100 (extra $3.50–$3.00)
Microsoft mailboxesOffered; price not shown on siteSame price as GoogleSame price as Google
Pre-warmed mailboxesOffered; price not public. 12-month term, non-refundable, Zapmail-owned domains only$6–$9/mailbox by warm age, plus a one-time domain transfer feeGoogle & Microsoft: $39 for 3 · $149 for 12 · $339 for 30 first month, then $6–$8/mailbox
DomainsExtra, priced at checkout; non-refundableExtra; never refundedBring your own or buy in the dashboard; registered to you
Setup time5–10 minutesUnder 1 minute (first domain live in ~5)5 minutes on average
Minimum order10 mailboxes (Starter)None10 mailboxes (Starter)
RefundsFinal and non-refundable (two narrow exceptions)Generally non-refundable; credit if an order is delayed 48h+Report a problem within 7 days; refund where eligible
Integrations50+ (Instantly, Smartlead, Lemlist, …)24+ (Smartlead, Instantly, Apollo, …)50+ (Instantly, Smartlead, …)
APIPro planYes, with webhooksPro plan

Sources: zapmail.ai · help.zapmail.ai/en/articles/12355038-what-happen · help.zapmail.ai/en/articles/13358418-pre-warmed- · help.zapmail.ai/en/articles/9759194-refund-polic · inboxkit.com/pricing · inboxkit.com/learn/inboxkit-prewarmed-mailboxes · inboxkit.com/refund-policy

Cost

What 30 mailboxes cost per month

Monthly billing, mailboxes only. Domains are billed separately by every provider.

Standard mailboxes · 30 per month

Zapmail prices shown are first-year prices; its help center says Google and Microsoft mailbox prices rise after 12 months. InboxKit pre-warmed shown at its cheapest tier (2–4 weeks warmed), excluding one-time domain transfer fees.

Standard mailboxes · 30 per month
Zapmail$99
InboxKit$90
Jetmail$99

Pre-warmed mailboxes · 30 per month

Zapmail doesn't publish a pre-warmed price.

Pre-warmed mailboxes · 30 per month
InboxKit$180
Jetmail$180

By volume

Monthly cost at different sizes

Standard mailboxes, monthly billing, domains excluded.

MailboxesZapmailInboxKitJetmail
10$39$30$39
30$99$90$99
100$299$300$299
250$749$750$749

Verdict

Which one should you pick?

Pick Zapmail if

You want bundled plans with 50+ integrations and don't need a published pre-warmed price.

Pick InboxKit if

You want per-mailbox pricing with no minimum, annual billing at $2.50, and published pre-warmed tiers.

Pick Jetmail if

You want Zapmail-style bundles at the same price, plus pre-warmed inboxes from $6.00/mailbox.

Switching

Moving from Zapmail and InboxKit to Jetmail

Most teams switch over a day: new mailboxes go live while the old ones finish their sequences.

  1. Step 1

    Export

    Pause new sequences and export leads and templates from your sequencer.

  2. Step 2

    Domains

    Bring domains you own or buy fresh ones in the Jetmail dashboard.

  3. Step 3

    Auto DNS

    Mailboxes created with SPF, DKIM, DMARC and MX published.

  4. Step 4

    Reconnect

    1-click OAuth into Instantly, Smartlead and 50+ tools.

  5. Step 5

    Resume

    Start sending, or go pre-warmed to skip the ramp.

Calculator

Price your exact setup

Mailboxes
46
Domains
16
Jetmail / mo
$151

30 sends per mailbox per day, 3 mailboxes per domain, 22 sending days. Monthly billing, mailboxes only (domains are extra with every provider). Competitor prices from their public sites, checked Oct 2026.

Monthly cost for 46 mailboxes

  • Jetmail$151
  • Zapmail$151
  • InboxKit$138
  • Icemail$115
  • Instantly$230
  • Zapmail prices shown are first-year prices; its help center says Google and Microsoft mailbox prices rise after 12 months.
  • InboxKit pre-warmed shown at its cheapest tier (2–4 weeks warmed), excluding one-time domain transfer fees.
  • Icemail standard price is a limited-time promo ($3.50 list).
  • Instantly accounts also need a paid Instantly sending plan (from $47/mo), not included above.

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Zapmail and InboxKit are trademarks of their respective owners. Jetmail isn't affiliated with or endorsed by them.

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Frequently asked questions

Zapmail vs InboxKit: which is cheaper?

It depends on volume. With monthly billing, 10 mailboxes cost $39 on Zapmail vs $30 on InboxKit, and 100 cost $299 vs $300. InboxKit drops to $2.50/mailbox on annual billing. Zapmail's prices rise after 12 months, per its help center.

Which has pre-warmed inboxes?

Both. InboxKit publishes $6–$9 per mailbox depending on warm age. Zapmail offers pre-warmed mailboxes on a fixed 12-month, non-refundable term but doesn't list the price publicly.

Do both support Microsoft 365?

Yes. InboxKit charges the same for Microsoft and Google. Zapmail offers Microsoft mailboxes but doesn't show the price on its site.

Which integrates with more tools?

Zapmail lists 50+ integrations, InboxKit 24+. Both connect to Instantly and Smartlead. InboxKit offers a full API with webhooks; Zapmail's API is on its Pro plan.

Is there a third option?

Jetmail offers Zapmail-style bundles at the same prices, Microsoft at the same price as Google, and pre-warmed inboxes priced upfront from $6.00 per mailbox.

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