Remove the junk from your public inboxes
Tired of link exchanges, cold outreach, and phishing attempts landing in your user and public contact@ etc. inboxes?
Trusted by teams who value customer success
Who it's for
Built for the addresses you have to leave open
Shared addresses and personal mailboxes are open doors. Immune is the gate in front of the mail your company publishes to the world, and the mailboxes your people use every day.
Team inboxes
support@, sales@, ops@
High-volume shared addresses that attract spam, spoofed vendors, and phishing aimed at whoever is on duty.
Public-facing
contact@, partnerships@
Addresses listed on your site, LinkedIn, and pitch decks. These are the ones strangers write to first, and attackers abuse constantly.
User inboxes
People, not just aliases
Protect individual mailboxes the same way. Unknown senders challenge once, known contacts pass, junk stays out.
"We had been using Intercom's filtering system. But it just does not work. It drove the team nuts for years. Wet gave Immune a try. The minute it was up, all the junk was blocked. "
The gap
Why anti-spam alone does not work
Filters were built for bulk junk. They were not built for people who write like customers; sales outreach, partnership pitches, AI-written cold email, and targeted phishing that already passes SPF and DKIM.
Filters
Score the message
Content models guess intent from words and reputation. When mail looks legitimate, it is delivered, by design.
Senders
Write like humans
Advertisers, sellers, and attackers now sound personal. They want a reply, so they clear the same checks your real contacts clear.
Immune
Challenge the sender
Unknown senders prove they are human before delivery. Bots and bulk campaigns almost never complete the step.
Results
99.97%
of undesirable mail stopped
Immune has been protecting thousands of inboxes of spam, phishing attacks and undesired cold outreach emails.
How it works
Verify first. Deliver second.
Not another AI-based filtering system. Immune is a practical gate, holding emails from unknown senders until they prove they are human.
01
Put Immune in front
Configure Google Workspace/Microsoft 365 to redirect each inbox you want to protect (e.g support@) to Immune's server.
02
Whitelist users/customers
Through a one-click import, add your existing users and customers to Immune's verified sender list so they bypass the challenge.
03
Challenge senders
Unknown senders' emails are held for review until the sender proves they are human.
04
Deliver to your team
Once verified, the held emails are released to your team's inboxes and the sender is added to the verified sender list.
"Our support inbox was completely unusable. The team's morale was low, drowning in spam and link exchange emails. We set up Immune and it was just magic. Nothing was getting through!"
Why Immune
Built for the inboxes that get hit hardest
Enterprise suites price per seat and protect everything the same way. Immune is for the addresses that are published, shared, and attacked, and for the people behind them.
Human verification
Unknown senders complete a lightweight challenge. Automated spam and most phishing never make it past the gate.
Per-inbox control
Each address gets its own preferences and destination: helpdesk (Intercom, Zendesk, Featurebase etc.), Google Group, Outlook user inbox etc.
Quarantine, not silence
Suspicious mail is held in quarantine should your team want to analyze it. Nothing disappears without a trail.
Ready to protect your inboxes?
Start your trial today and set up your first inbox in minutes.