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AI protection that stops spam-risk emails before they’re sent.
MI Shield analyses every outgoing email before it leaves your sending infrastructure, catching content, link, authentication and sending-pattern risks that could trigger spam filters, throttling or reputation damage.
We don't beat the spam filter. We are the filter.
No one filters outgoing email. That's why the ecosystem drowned in spam, and why the giants left. MI Shield screens every message before it leaves our network. Bad traffic never ships.
Every email is screened before SMTP handoff.
Nothing leaves your Cube without clearing MI Shield first, so the filtering happens on our side of the network, not the mailbox provider's.
Six layers of protection before every send.
Stops preventable damage before the email leaves
Traditional filters usually react after delivery problems appear. MI Shield sits before the send. It checks each message and blocks risky sends before they reach Gmail, Outlook or other mailbox providers.
Learns from inbox vs spam outcomes
MI Shield is trained on 100M+ emails and real placement outcomes, so it can learn from the signals that matter: inbox placement, spam placement, bounces, deferrals and provider response patterns.
Every customer helps sharpen the protection layer
As more customers send through Mission Inbox, MI Shield sees more patterns across content, sending behaviour, authentication, routing and outcomes. That gives the model a wider view of what mailbox providers accept, flag or throttle.
Keeps up without manual tuning
Spam filters change constantly. MI Shield monitors placement outcomes and provider signals, then updates its protection logic automatically. Your team does not need to rebuild rules every time Gmail or Outlook changes how they filter email.
Protects the assets your email depends on
Your domains and dedicated IPs are not disposable. MI Shield protects them at the infrastructure level by stopping risky sends before they create negative signals against your Cube.
Built to Gmail and Microsoft's own standards
Rather than guessing at what mailbox providers want, MI Shield enforces Gmail and Microsoft sending standards by design, so every message that clears the check already meets the bar providers hold senders to.
Included with every Cube.
No separate subscription. No extra setup. No bolt-on spam checker. MI Shield runs inside every Cube, protecting outbound campaigns, product email and API/SMTP workloads from the same infrastructure layer.
MI Shield FAQs
Protect your sending reputation before the first email goes out.
MI Shield is included with every Cube, so every workload gets pre-send protection from day one.
© 2026 Mission Inbox Inc, All Rights Reserved | Property of Mission Inbox Inc
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