Question 1

Frequently Asked Questions

Accepted Answer

This guide walks you through everything you need to know about setting up your email infrastructure, warming up your inboxes, and sending messages that actually reach people. We’ve made the answers friendly and simple—while still giving you the technical details when you need them.

🔹Mailbox Creation & Management

Q: How do I create mailboxes in Mission Inbox? Head to your account in Mission Inbox and look for the Domains tab. Once your domain is added, you can go to "Mailboxes" and create mailboxes by clicking “Add Mailbox.” You can choose to enter them manually, or use the bulk upload feature if you’re working with lots of addresses at once. Q: Can I bulk upload mailboxes using a CSV file? Absolutely! We even give you a pre-formatted CSV template to make it easy. Fill it out with the mailbox details, upload it, and Mission Inbox will generate all your inboxes in one go. Q: What’sthe maximum number of mailboxes per domain or subdomain? We recommend keeping it to 3 mailboxes per root domain, or 1 per subdomain (with a max of 5 subdomains/domain). This keeps your sender reputation clean and makes it easier to track performance across campaigns. Q: Can I create mailboxes before verifying my domain? Yes—you can create the mailboxes ahead of time. Just know that they won’t be able to send emails until the domain is fully verified with the correct DNS records. You will not be able to use the bulk domain creation with unverified domains though. **Q:

Question 2

Billing and Pricing FAQ

Accepted Answer

Mission Inbox - Pricing

Pricing Philosophy

Simple, transparent pricing that grows with you. Start at $199/month and scale at your own pace. No hidden fees, no surprises.

Plans

Starter Plan - $199/month (Most popular)

Recommended for: Agencies, startups, and companies who require mailboxes to serve their clients and team. What's Included:

30 mailboxes included
10,000 sends per month
Dedicated IP addresses
MI Shield protection
20 credits Extra Usage:
Additional mailbox: $3 per mailbox
Per 1,000 sends: $1
Premium credits: $0.50 per credit

Pro Plan - $599/month

Recommended for: Platforms and enterprises sending over 5M+ emails per month looking to send directly using the API. What's Included:

Everything in Starter
API sending unlocked (OBM Engine)
Discounted mailboxes
Slack direct support
10K sends included
Dedicated IPs
Slack priority support Extra Usage:
Per domain connected: $2
Per mailbox: $2
Per 1,000 sends: $1
Premium credits: $0.50 per credit

Custom Enterprise Plans

For: Teams sending over 10M emails per month or requiring custom features. To get one you must contact sales for a custom quote.

| Price Calculator Mission Inbox offers a price calculator on the pricing page https://missioninbox.com/pricing The calculator provides personalized plan recommendations based on your answers.

||| When calculating pricing, you need to contemplate all the variables: Subscription f

Question 3

Why Mission Inbox is different?

Accepted Answer

Why Mission Inbox is the Only Email Infrastructure Built for Sales Success

Traditional email providers like SendGrid, Mailgun, and Resend operate like nightclub bouncers. They'll let you in, but the moment you start doing anything that looks like sales outreach, you're thrown out onto the street. Mission Inbox is different. We're the VIP club built specifically for revenue teams, where cold email isn't just tolerated, it's optimized for maximum deliverability and inbox placement.

The Fundamental Problem: Why Legacy Providers Can't Handle Cold Email

52% of B2B sales emails never reach inboxes. This isn't a content problem. It's an infrastructure problem. SendGrid, Mailgun, and Resend prohibit cold email for a simple economic reason: cold emails are unsolicited, which means higher spam rates. When emails get marked as spam, it damages their expensive IP infrastructure and affects their paying customers who use the same shared IPs for transactional emails like order confirmations and password resets. Building and maintaining email infrastructure is costly. Without a way to prevent spam before it sends, allowing cold email would destroy their entire system. So they simply ban it and force sales teams to find other solutions. This creates the "shared IP death spiral." One bad sender ruins deliverability for everyone sharing that IP address. Your perfectly crafted sales emails get lumped in with actual spam and blocked at the gateway.

Mission Inbox: The Only Infrastru

Question 4

Mission Inbox Compared to Sendgrid

Accepted Answer

Mission Inbox vs. SendGrid

SendGrid bans cold email, uses shared IP pools, offers no AI protection, and takes 2-3 days to set up. Mission Inbox provides isolated servers, AI pre-send scanning, cold email-friendly policies, and <5 minute setup.

Feature Comparison

SendGrid's Problems

Account Suspensions: Cold email violates SendGrid's Terms of Service. Accounts get suspended without warning. Thousands of accounts banned every month for "unsolicited emails," and your business stops overnight.
No Domain Protection: SendGrid doesn't check if emails look like spam before sending. There is no pre-send scanning, meaning your domain reputation burns without warning.
Shared IP Contamination: Emails share IPs with other senders, including spammers. One bad sender tanks deliverability for everyone on the shared pool. You have no control over who you share infrastructure with.

How Mission Inbox Solves This

Cold Email Friendly: Built for outreach. Mission Inbox does NOT ban cold email — it helps users do it right with AI protection and dedicated infrastructure.
MI Shield™ AI Protection: Every email is scanned before it leaves the server. MI Shield blocks anything that looks like

Question 5

Adding API Keys for Automatic DNS Registration in Mission Inbox

Accepted Answer

Mission Inbox now supports automatic DNS registration with Cloudflare and GoDaddy through direct API key integration. This eliminates the need to manually configure DNS records, streamlining domain setup and management.

Step-by-Step Instructions

1. Access the Integration Settings

Log in to your Mission Inbox dashboard.
Go to Settings from the main menu.
Click the Integrations tab.
Locate the integration options for Cloudflare and GoDaddy. You can integrate one or both services. There is no need to manually assign domains to accounts—the system detects and assigns automatically. Multiple accounts per provider are supported.

2. Add Your Cloudflare API Key

Watch video tutorial

a. Generate Your Cloudflare API Key

Go to the [Cloudflare dashboard].
Click your profile icon (top-right), then choose API Tokens.
Scroll to the Global API Key section.
Click View, enter your Cloudflare account password, and complete any security verification.
Copy your Global API Key (you may change it later if needed).

⚠️ Security Note: Do not share this key publicly. If exposed, regenerate it in Cloudflare and update it in Mission Inbox.

b. Add Key in Mission Inbox

Return to Mission Inbox > Settings > Integrations.

Paste your Cloudflare Global API Key.

Enter the **email address

Question 6

Mission Inbox - Product Overview & Architecture

Accepted Answer

Mission Inbox - Product Overview & Architecture

The Three Core Technology Layers

Mission Inbox operates on three distinct layers that work together to maximize inbox placement: 1. Inbox Layer For fast setup, the Inbox Layer allows users to:

Create or bring their own SMTP accounts or API
Features Auto-push DNS (for SPF, DKIM, and DMARC) with providers like Cloudflare and GoDaddy
One-click DNS automation for instant domain authentication

2. Pre-send Shield (MI Shield) An AI-powered firewall that scans every outgoing email to prevent:

Poor structure
Lack of personalization
Bad DNS
Spam triggers All checks happen BEFORE the message leaves the system.

3. OBM Engine (Outboxment) The sending server component that offers:

Complete reputation control
Detailed logs
Bounce handling
Feedback loops
Deliverability analytics

Two Ways to Send Email

SMTP Mailboxes

Standard SMTP protocol
Works with any sales engagement platform
Plug-and-play integration
Traditional email sending approach

API Sending (OBM Engine)

RESTful API integration
SDKs for 6+ programming languages (Node.js, Python, Ruby, PHP, Go, Java)
Comprehensive documentation and examples
Webhook support for real-time events
<50ms average latency
99.9% uptime
Sandbox environment for testing

Core Features

Cubes & Dedicated IPs (Isolated Infrastructure)

Every customer gets a dedicated server instance (a "Cube")
Each Cu

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