Advanced Spam and Virus Filtering Made Easy

Protect your server from spam, malware and phishing attacks
99.5% Accuracy
As low as $0.55 per user
Free 30 day trial. Unlimited messages.
Quick setup. Constantly updated.

MX Guardian is a cloud-based email spam and malware filtering service that works silently in the background to protect your users from phishing attacks, viruses, spam, denial-of-service (DoS) attacks and other email threats. It frees up your mail server so it only has to deal with legitimate messages and provides a backup MX service to prevent messages from bouncing in case your server is temporarily down or unreachable.

MX Guardian is designed for businesses, ISPs, web-hosting companies, or anyone who has a domain that receives email. We're also compatible with popular cloud platforms such as Microsoft Office 365 and Google G Suite.

Don't let our prices fool you. We have a long list of available features - without any hidden fees.

Nothing To Install

All email filtering takes place on our servers, in the cloud. We are constantly updating our detection engines so you don't have to.

Real-Time Reports

Analyze trends and see the effectiveness of our filtering technology at any time. Or if you choose, have a daily report sent straight to your inbox.

LDAP Synchronization

Synchronize your user list with any LDAP-compatible server such as Microsoft Active Directory so you don't need to manually add & remove users.

Protect Your Network

Spam, viruses, and phishing scams are all safely quarantined on our servers so they don't waste your valuable bandwidth.

User Quarantines

Users can safely review their quarantined messages from our web-based control panel and release messages if necessary.

Email Server Monitoring

Receive instant alerts via SMS or email when your mail server is not responding.

Message Queuing

In the event your server is down, we prevent messages from bouncing by keeping them in our queue until your server is back online.

Whitelist and Blacklist

Users can block or allow sender addresses and domains by adding them to a whitelist or blacklist. In addition, administrators can define domain-wide lists.

Pass-Through Authentication

Users can login to our control panel using their email password. We support POP3, IMAP, and LDAP pass-through authentication.

By making a simple change to your domain's MX record, all your incoming messages are redirected to our highly-reliable mail filtering servers where they are analyzed by advanced spam-detection algorithms and multiple anti-virus engines to identify spam, viruses, phishing attacks, and other threats. Once the undesirable messages have been safely quarantined or deleted, the remaining legitimate messages are sent to your existing mail server for delivery as usual. This reduces the load on your production mail server, saves Internet bandwidth, and increases your network security by stopping threats before they enter your network. Since all the filtering is done on our servers, there is nothing for you to install or maintain. In the event your server is down or unreachable, we prevent messages from bouncing by keeping them in our queue until your server is back online.