Billing terms & Pricing Policy

Mission Inbox uses a hybrid billing model: a fixed monthly subscription combined with variable usage-based charges. These are two legally distinct obligations that operate on different schedules and carry different refund rules.

Mission Inbox offers two monthly subscription plans. Your plan determines your feature access and the rate schedule applied to all variable usage charges.

Free Trials

Free trials may be offered at Mission Inbox's sole discretion. A valid payment method is required to activate a trial. At the end of the trial period, your account will automatically convert to a paid subscription unless cancelled before the trial expires. Trial terms may be modified or revoked without notice.

On the Starter plan, mailboxes are billed on a cumulative tiered model. Each tier's rate applies only to mailboxes within that specific band — not retroactively to all mailboxes. The first 30 mailboxes are included in your subscription at no additional charge.

Pro Plan — Flat Mailbox Rate

On the Pro plan, all mailboxes are billed at a single flat rate of $2.00 per mailbox per month. There are no tiered steps. High Water Mark billing still applies — your billable count equals the peak mailbox count at any point during the cycle.

Domain management is a Pro-exclusive feature. Starter plan accounts cannot connect domains or subdomains through Mission Inbox's infrastructure.

Each distinct domain string is a separate billable unit. company.com, mail.company.com, and outbound.company.com are three units at $2.00 each = $6.00/month.

Email sends are charged at $1.00 per 1,000 sends, applied from the first email of the cycle. There is no free send allocation — every send is billable. This rate applies equally to Starter and Pro plans.

A month in which you send 47,001 emails is billed as 48 units ($48.00), not 47 units. There are no volume discounts on send pricing.

Certain Mission Inbox features consume credits. Credits are priced at $0.50 per credit and billed as usage — they accrue during the cycle and are collected at renewal alongside other usage charges.

All variable charges are billed in arrears and collected at your next renewal. No usage charges are collected mid-cycle. The table below covers every billable item.

Your billing cycle is 30 days, anchored to the date your paid subscription first activated. The exact same date each month is your renewal date.

How High Water Mark Works

Mailboxes and domains are billed based on the maximum count active at any single point during the cycle — not the average, not the end-of-period count.

No Mid-Cycle Subscription Proration

Mission Inbox does not prorate subscription fees for plan upgrades, downgrades, or cancellations made mid-cycle. Plan changes take effect at the start of the next billing cycle. The current cycle's subscription fee is non-refundable after the 2-day grace window.

Usage Collected at Renewal — Never Mid-Cycle

• No usage invoice is issued during an active cycle. All usage is visible in your dashboard but not charged until renewal.
• On renewal day, prior-cycle usage and the new subscription fee are charged in a single operation to your payment method on file.
• If your payment method fails for usage charges at renewal, your account may be suspended until the full balance is settled.
• Cancelling your subscription does not cancel, defer, or reduce accrued usage obligations — see Section 10.

Sequence of Events at Cancellation

• Platform access continues until the last day of your current paid cycle. You are not cut off immediately upon cancellation.
• Usage continues to accrue from the cancellation date through the end of your paid cycle. Sending emails or consuming credits after cancelling still generates billable usage.
• Final usage is locked at the end of your last active cycle and a final invoice is generated.
• Final usage charge is collected on what would have been your next renewal date, from the payment method on file.
• Your payment method must remain valid until the final invoice is cleared. Invalidating your payment method before the final charge processes constitutes a breach of these Terms.
• Unpaid final balances are subject to collection procedures, including referral to third-party collection agencies and applicable credit reporting.

How to Request a Subscription Refund

• Email hey@missioninbox.com within 2 calendar days of your renewal date with subject line: "Billing Refund Request."
• Include your account email address, the renewal date in question, and the reason for the request.
• Approved refunds are processed within 5–10 business days to the original payment method.
• Requests received after the 2-day grace window are declined without review — no exceptions.

Required Internal Dispute Process

Consequences of Unauthorized Chargebacks

• Immediate suspension of all Mission Inbox services and account access pending resolution.
• The full disputed amount plus a chargeback processing fee becomes immediately due and payable.
• Outstanding balance is referred to collections and may be reported to credit bureaus.
• Mission Inbox will contest all unauthorized chargebacks with documented usage evidence submitted directly to the payment processor.
• Accounts subject to unauthorized chargebacks are permanently banned. Re-registration under any name or entity is prohibited.

Accepted Methods

Mission Inbox accepts major credit and debit cards (Visa, Mastercard, American Express, Discover) and ACH bank transfers for eligible accounts. All charges are in USD. Currency conversion fees charged by your bank or card issuer are your responsibility.

Failed Payment Sequence

Updating Payment Method

You may update your payment method at any time in your account billing settings. It is your sole responsibility to update expired or cancelled cards before your next renewal date. Mission Inbox is not liable for service interruptions caused by outdated payment credentials.

Mission Inbox reserves the right to modify subscription fees, mailbox tier rates, domain rates, send pricing, and credit prices at any time subject to the following notice rules:

• Subscription fee changes are communicated with a minimum of 30 days' notice via email to your registered address and/or in-app notification.
• Usage rate changes take effect at the start of the first full billing cycle following the notice period.
• Continued use of Mission Inbox after the effective date of any price change constitutes unconditional acceptance of the new rates.
• Grandfathered or promotional pricing applies only for the explicitly stated term and does not renew automatically unless confirmed in a written agreement signed by Mission Inbox.
• Enterprise contracts with fixed pricing schedules are governed by the individual contract, which supersedes this general policy for the duration of that contract.

This Billing Policy is incorporated by reference into the Mission Inbox Terms of Service (last updated December 28, 2025). In the event of any conflict between this document and the Terms of Service, the Terms of Service shall govern. For billing questions contact hey@missioninbox.com. Mission Inbox Inc., 2093 Philadelphia Pike #2171, Claymont, DE 19703.