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Mission Inbox vs Resend
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Mission Inbox vs Mailgun

Mission Inbox was created to scale your prospecting—with protection, performance, and predictability from the very first send.

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See why Sales teams
choose Mission Inbox

Cold Email Friendly

MissionInbox

Sendgrid

Mailbox Provisioning

MissionInbox

Sendgrid

Pre-Send Quality Check

MissionInbox

Sendgrid

Deliverability Insights

MissionInbox

Sendgrid

Warm-Up Support

MissionInbox

Sendgrid

API Access

MissionInbox

Sendgrid

Dedicated Infrastructure

MissionInbox

Sendgrid

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Take back control
of your inbox destiny

Over half of B2B emails go straight to spam — even when they shouldn’t. Mission Inbox puts you back in command. Build and manage your own deliverability infrastructure to make sure your sales, marketing, and billing emails land exactly where they should: in the inbox. Stop guessing. Start delivering.

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Painel de controle do Mission Inbox

What does only
Mission Inbox offer?

Infrastructure Icon

Infrastructure for cold email, without fear

The only platform built from the ground up to scale outbound safely.

AI Protection Icon

AI that protects
before sending

Mission Shield™ validates each email and automatically blocks risks.

DNS Icon

Unlimited inboxes with automated DNS

Create and authenticate new inboxes in seconds—no technical effort required

Diagnostics Icon

Real-time diagnostics

Deliverability, reputation, and performance visible on a modern dashboard.

Scale Icon

Scale of truth

Send up to 30 million emails/month with complete control and active feedback loops.

Marketers have Hubspot, Sales have Salesforce; You have Mission Inbox!

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Comparative FAQ

Mission Inbox is built specifically for sales email, and is not limited to transactional automation. We allow cold email and protect your deliverability with proprietary pre-send checks and real-time monitoring.
You'll need to BRING YOUR OWN domains, but we will automatically update your DNS records (DMARC/SPF/DKIM), to make it easy—MI doesnt require you to be technical.
You'll receive alerts before you reach your sending threshold. However, you can add more mailboxes or increase sending volume seamlessly without interrupting service. Overusage will be charged on renewal at the most affordable price in the market. Overusage prices: $1 per thousand sends, and $3 or $2 per mailbox depending on you mailbox quantity.
Yes. You can adjust your plan based on your sending volume and needs. Minimum price is $199. Changes are pro-rated.
These platforms are often resellers of GMail, Outlook, or front-ends over fragile mail servers like Mailcow or Mail-in-a-Box. They depend on someone else's infrastructure, which makes them less reliable and harder to scale. Mission Inbox is fundamentally different—we're real infrastructure, like SendGrid or Mailgun, but purpose-built for sales email. We operate our own servers and IPs, fully independent from Google and Microsoft. Just as important, we're built on transparency. You own everything—your domains, your sending identities, and your DNS. We never use nameservers to hijack control or hide your setup. You see everything, configure everything, and can take your assets with you at any time. No lock-in. No black boxes. That's the standard we believe email infrastructure should meet.
Yes. Mission Inbox is real infrastructure designed for builders. With our OBM Engine (SendGrid-like API) and MI Shield (pre-send deliverability protection), you can plug in your tool, CRM, or product and start sending high-deliverability emails—without setting up or managing email servers.
No, but our starting price is very affordable, and you will only pay extra if you use more than what is included.
Yes, we do. Check the Explore menu on the header.

What Our Clients
Are Saying

Our agency sends roughly 450,000 emails/mo, having that volume with Gmail, Outlook and other infrastructures was a headache. Mission Inbox made it super easy to manage everything in a single place while having even better open and reply rates.

Foto de Velimir Elezovic

Velimir Elezovic

Head of Sales at Gobvio

Running a cold email agency isn’t easy, specially handling the deliverability component that not many people have expertise in. You guys allowed me to effortlessly scale the volume I had in the past and even have crazy high open rates, bringing my clients more interested replies per campaign.

Foto de Bobby Offterdinger

Bobby Offterdinger

CEO at TAM to Target

Switching to your email service has been a game-changer for us. Our open rates have improved by 20%, and our reply rates have increased by 80%. We appreciate the reliability of your service and not having to deal with constant Google disconnections and frustrating notifications. Thank you!

Foto de Nick Gil

Nick Gil

Head of Sales at Peakora

It isn't easy, specially handling the deliverability component that not many people have expertise in. You guys allowed me to effortlessly scale the volume I had in the past and even have crazy high open rates, bringing my clients more interested replies per campaign.

Foto de Outro Cliente

Nate Andorsky

Founder at Patent355

Are you old school and
would rather have a demo?