Email Security (EMS)

How To Activate Your USS Account.

USS Dashboard Walk Through.

Getting Started with Web Security

Getting started with Cloud Application Security.

Getting started with Email Security

Getting started with Security Awareness Training

Activity Reports

Charts

Schedules

Data retention periods

Admin Auditing

Settings

Licenses

Notifications

Branding

Events not arriving for Office 365 Onedrive or Sharepoint

Overview

App Catalog

API Integrations

App Catalog List

Managing an MFA lock-out

Count how many users are in an AD group

ADFS Login not being intercepted for MFA

Configure FortiGate to use PAP for Challenge-Response

Overview

Quick Start

MFA - Rules Engine Concepts

Authentication Client (server)

Authentication App (enduser)

MFA - Product Configuration

Third Party Guides

Configuring Windows Logon Protection

Configuring RADIUS Protection

Deploying the Cloud MFA Authentication App

Configuring RD Web Access using IIS Website Protection

Products not supporting RADIUS Challenge-Response

Configuring AD FS Protection

CEA User Guide

Viewing and Managing History in CEA

Using the CEA Outlook Add-in

Viewing and Managing Spaces in CEA

Managing Deletion Requests from CEA

Installing the Outlook Add-in for CEA

Legal Hold in CEA

Authorised Delete in CEA

Viewing and Managing CEA results

Configuring Google Workspace OAuth and Service Account

Integrate Gmail with a CEA

CEA - Data storage explained

Compliant Email Archive Quick Start Guide

How to calculate incoming and outgoing emails for mailboxes on Exchange on Prem.

Understanding Data Guardians

Email Archive End User Guide

Configuring journaling on Exchange 365

Configuring authentication with O365 via OAuth

Ingest mail via Mailbox Reader with MSGraph

Configuring an Impersonation Account

Folder Replication Configuration

Assigning delegation via OAuth with User Directory

Compliant Email Archive - LDAP Configuration

Configuring journaling for Exchange and Office 365

Configuring a local user account

Re-enabling Outlook Homepage Tab

Ingest mail via Mailbox Reader for Exchange 2013 - 2019

Ingest mail via Mailbox Reader

End User Email Archive Authentication with ADFS

EMS - Message Rules

Connection Rules

Custom rule Data

Global Quarantine

Personal Quarantine

Spam Deny List

Spam Safe List

Mailboxes

Group Management

EMS - Product Configuration

How to avoid multiple disclaimers being added when forwarding or replying to emails

Executive Tracking

Nearby Domain Rule

Configuring TLS encryption

LinkScan: on-demand URL protection

Configure outbound DMARC

Configure outbound DKIM

How to Prefix a banner to inbound emails

Identify Safe Listed emails in Email Activity

Executive Tracking with Subject

IP Geolocation Connection Rule

Display Name Detection

How to configure Authenticated Received Chain (ARC) Inbound

How to use the Domain Name Detection rule

Empty Body Detection

How does DMARC work?

Reject oversized emails

MX records and IP addresses for all regions

MX records and IP addresses for EU customers

MX records and IP addresses for USA customers

MX records and IP addresses for UAE customers

MX records and IP addresses for India customers

Post Delivery Email Deletion (Retract)

Configure Office 365 for EMS

Safelisting Email Security IP addresses in Office 365

Configure Inbound mail on Office 365 to reject non-EMS emails.

Managing DNS in Office 365

Digest generation and Quarantines

Blocking emails from hacked Gmail accounts

Stop specific users from receiving Word documents

Detect credit card numbers in an email

Disable spam filtering for specific mailboxes

CoreService filter classifications

Configure GMail using Google Workspace for EMS

Configure outbound email for Exchange 2007/2010

Configure outbound email for Exchange 2016

Bulk Email & Fair Usage

Queue retention and retry times

Personal Safe Lists and Personal Deny Lists

Reject message due to message “550 5.1.8 sender denied”

Email Sandbox - Supported file types

[Marketing Medium] or [High Medium] prefixed to the subject of mails

DMARC Failure Reporting

What happens when my Email Security license is suspended or deleted?

Example Spam Digest or Quarantine Report

How to onboard users into the End User Portal

Cisco Fixup Protocol

Adding images to email disclaimers

Reject Top Level Domains

Adding an alias to a primary mailbox

Temporary Server Error

Unable to Relay error on outbound email

Notify Recipient/Sender Actions

Reject Disabled user accounts (mailboxes)

DLP Dictionaries

Activate the Quarantine Portal for Spam Digest users

DMARC Abuse Report received even though it passes DMARC

Unable to forward emails from Microsoft 365 accounts

How to use Custom Rule Data (formerly Dictionaries)

HTML attachments

How to block double extension filenames

Manage Mailboxes using the API

Email Security: Best Practice Guide

How to work with System Locked rules

How to detect simplified Chinese character sets

Placeholders for inserting message data into actions

Creating Custom Digests

Advanced Email Sandbox - Overview

Redirect emails to a different address

Connector Mode Setup

How to add comments in Regex

Configuring MTA-STS and TLS-RPT (Inbound)

QR Code scanning

How to Report Spam and Phishing Emails via the Censornet Outlook Plugin.

Outlook Add-in V2

Installing the Outlook add-in for Email Security

Outlook add-in is not the newest version

Upgrade Outlook Add-in for reporting spam and phishing email

SecureMail concepts explained

Configuring SecureMail

Using the SecureMail dashboard

Reporting spam or false positives

Insufficient system resources message on inbound email delivery

Outbound Delivery error: 550 Unable to relay

No Valid MX Record NDR message

Why do I see No SMTP transport in Email activity?

Identifying Spoofed Emails

DMARC Fail: Alignment reporting

Email Security: Quick Start for Microsoft 365.

Email Security: Quick Start

Email Security: Quick Start for Google Workspace

EMS - Default Rules

What's new ?

Understanding Product Usage

Service IP addresses and ports

End of Life

Supported Browsers

Introduction

Master Services Agreement (MSA)

Standard Contractual Clauses (SCCs)

Website Usage and Cookie Policies

Log Streaming Overview

Log Streaming to Microsoft Sentinel

Log Streaming record format

Log Streaming to Rapid7 InsightIDR

Log Streaming to Amazon S3

Log Streaming to Google Cloud Storage

Log Streaming for Splunk Enterprise or Cloud

Log Streaming to Sumo Logic

Administrators

Single Sign On

Active Directory

AD Connect software

Roles (RBAC)

Keyword Lists

Devices & Groups

Active Directory Synchronisation Explained

Active Directory Object Synchronisation

Account Password and MFA

Role Builder

Granting access to synchronise Entra ID shared mailboxes

Add the Exchange Online API permission to an existing AAD connection

Verify that Azure AD permissions are granted for Shared Mailbox sync

Google Workspace synchronisation

Posture Management Overview

Posture Management Dashboard (Homepage)

Connectors

Posture Management Scanning

Posture Management Activity and AI Remediation

Alerts

Controls Management

AWS Onboarding Guide

Google Cloud Platform Onboarding Guide

Microsoft 365 Onboarding Guide

Microsoft Azure Onboarding Guide

Salesforce Onboarding Guide

Configuring Microsoft Teams alerts

Upgrade Notice

SAT - User Guide

SAT - Hierarchical Tenancy Management.

Allow SAT Domains for EMS customers

SAT - Comms Template for Microsoft.

SAT - Comms Template for Google.

Course Overviews

Cyber Hints and Tips

How do I reset my SAT password?

SAT - Reports data not showing.

How to allow download of images within emails

SAT Course video do not load.

Display simulation images within Outlook using PowerShell.

How do I Access the SAT Portal as a New User via Email?

SAT - Using the Sim Creation Tool

SAT - Content Packs

WS - Rules Engine Concepts

WS - Filter Rules

Feature Control Rules

Browser Categories

Custom URLs

Bypass Categories

Deployment Section.

Agent Configuration Profiles

Unblock Requests

Web Security: Product Configuration

Prevent Law features for UK organisations

Deploying via Wizard

Deploying via Startup/Shutdown script

Deploying the Windows agent via a custom MSI

Deployment via GPO

Deploying USS Windows Agent via Microsoft Intune

Command-line parameters for the USS Agent for Windows.

Installing the USS Agent for Windows SSL certificate in Firefox.

Deploying the USS agent for Windows via Microsoft SCCM

Changelog - Windows Agent

Configuration options for the Windows agent type

Download Microsoft Windows agent

Requirements for the USS Agent for Windows

Processes used by USS Agent for Windows

Install - Deploying the USS Agent for Mac OS X via Wizard.

Command-line parameters For the USS Agent for Mac OS X

Deploying the USS Agent for Mac OS X via JAMF

Requirements for the USS Mac OS X agent

Changelog - MacOS Agent

Download macOS Agent

Configuration options for the Mac OS X USS agent.

Deploying Chromebook agent via Google Admin console

Requirements

Changelog - Chromebook Agent

Download Chromebook agent

Configuration options for the USS Chromebook agent.

USS Gateway - Requirements

Installation of the USS Gateway

Installing the USS Gateway on Microsoft Hyper-V

Deploying Web Browser proxy settings for the USS Gateway.

Migrating the SSL intercept certificate to a new gateway

Preparing the USS Gateway for use with a load balancer

Client Deployment options for explicit proxying to the USS Gateway.

Configuring USS Gateway to work with LoadBalancer.org software load balancer

Set up Guide for Edge Nexus ADC and Censornet USS Gateways

Third Party Load Balancer Guides

Change the default listening port for the USS Gateway proxy

Installing an SSL Certificate on iOS 13 onwards.

Overview

Authentication & Identification

Network

USS Gateway Time & NTP Settings

USS Gateway System Settings

USS Gateway Advanced configuration

Configuration options for the USS Gateway agent.

USS Gatewat Charts

Download Gateway Virtual Machine

Changelog - USS Gateway.

USS Mac OS X Agent Log File Storage

Collecting debug information - USS Agent for Mac OS X

Processes used by the USS Agent for Mac OS X

USS Agent for Mac OS X Tray icon status codes.

Microsoft Teams Bypass Exception list on mac OS

Safari 17 Proxy Exceptions limit on a USS Mac OS X Agent.

How to disable Device Guard or Credential Guard

USS Window Agent Tray icon status codes

Temporary files generated by the endpoint agent software

USS Windows Agent Log File Storage

Incompatibility with nmap based products such as Wireshark

Collecting debug information - USS Agent for Windows

Using USS Windows Agent Web Security with Sophos

Windows agent - force download of anti-malware database

Change the default USS Windows agent configuration poll time.

Regular Gateway server maintenance

Accessing the USS Gateway Command Line

Resetting the Ubuntu Password To Log Into Gateway Command Line

Captive Portal on Samsung Devices

"The Requested Content Was Blocked" Error Message on a USS Gateway

Resizing a Partition in ESX Server Virtual Machine

Interception of iOS and Android apps (SSL Pinning)

Using an intermediate CA signed by Windows DC root CA

Updating the USS Gateway

Upgrading the USS Gateway from 20.04 LTS to 22.04 LTS.

Importing an SSL Certificate into the USS Gateway

Collecting debug information - USS Gateway

Adding a Static Route on a USS Gateway.

Chromebook Allowlist USS Gateway Proxy

Disable QUIC in Chrome Browser

Take a Packet Capture From the USS Gateway Command Line.

Check for the presence of a system proxy user

USS Gateway failing to install

ERR_CERT_HAS_EXPIRED_ Digicert certificate expiry 2023

How to add a Static Route to the USS Gateway

CVE-2020-15778

YouTube Safe or Restricted mode enforced by DNS on a USS Gateway.

Troubleshooting Web Security Filter Rules.

How to identify if a Bypass is affecting Web Security Filter Rules.

Bypassing Office 365

Unclassified / Uncategorised Site Processing

Censornet Web Filtering Policy and Approach for Education

List of domains to bypass apps for SSL Interception on the USS Gateway.

Blocking Embedded Games in Google Search

Enable Enhanced Unpacking Engine

MIME Categories and Types

How to submit a URL reclassification request

What happens when my Web Security license is suspended or deleted?

SSL/TLS Strict Mode blocked ciphers

Export Agents using curl script

Custom URL parsing and overlapping patterns

Allow partial websites/specific YouTube videos

Gateway failing to join the domain - the address handle that was given to the transport was invalid

Gateway proxy authentication pop-up login dialog

Bypasses not applying

USS Gateway IP changes unexpectedly

Global Web Filtering Coverage

Web Categories List

Fair Usage Policy for Web & CASB (Inline)

All Categories > Email Security (EMS)

102 articles

Email Security Configuration

Configuration Recommendations

17 articles by 2 authors

MX records and IP addresses

5 articles by 1 author

Office 365

5 articles by 1 author

Knowledge Base

46 articles by 3 authors

Outlook Plugin

5 articles by 2 authors

Securemail (add-on)

3 articles by 1 author

Email Security Troubleshooting

5 articles by 2 authors

Email Security Common Problems

2 articles by 1 author

Email Security: Quick Start for Microsoft 365.

Email Security: Quick Start for Microsoft 365 Follow this guide to successfully deploy Email Security (EMS) for Microsoft 365 (M365). Preparing The Environment. The below steps will guide you through…

Updated 2 months ago by admin

Email Security: Quick Start

Follow this quick start guide to quickly get up and running with Email Security. Download the digital PDF edition of the quick start guide. Whilst this guide is intended to help you implement the Ema…

Updated 8 months ago

Email Security: Quick Start for Google Workspace

Email Security: Quick Start for Google Workspace. Email Security: Quick Start for Google Workspace Follow this guide to successfully deploy Email Security (EMS) for Google Workspace. Preparing The En…

Updated 3 months ago by admin

EMS - Default Rules

Email Security comes with a set of sensible Default Rules. These defaults may be sufficient for your organisation, but we still recommend you familiarise yourself with them, in order to fully underst…

Updated 2 days ago