The cloud-based anti-spam service that works with your current e-mail infrastructure.
$0.36 per user and month!
Our email security system reduces spam, viruses and malware by over 99.9%. Keep your business safe from malicious email.
Inumbo activates the moment you register your domain. If you control your own DNS, you're up and running in minutes.
Fully redundant email, with 100% availability. We have servers all around the globe, and even uses two different TLDs.
We support IPv6, blocks phishing with DMARC, resolves with DNSSEC, and can do DKIM signing.
Are you a developer, integrator or provider? Use our APIs to manage your customer's domains.
The control panel is an App Engine project, so that you can see what's going on, or even fork us.
Many are used to email disappearing in-transit; a result of poor spam filters. We reject or send DSNs.