Zscaler Enterprise Email Security
Email Security Cloud For Large And Medium Enterprise
Email volume is growing every day and 80% of the content is spam. Traditional appliance based solutions cannot keep up with the volume and are forcing enterprises to add more boxes each year just to keep up. The Zscaler Email Security service provides virtually unlimited scalability, better security, and lower cost and maintenance overhead. Enterprises can protect against malware, granularly control mail flow, and prevent data loss over email.
Overview:
Email volume is growing every day. Administrators struggle with a growing number of appliances to block spam, viruses, and malware from entering networks, while also ensuring sensitive data does not leave the network via email. With over 80% of email being spam, much of enterprise bandwidth is wasted with messages that are simply dropped as spam. Appliance based solutions cannot keep up with the volume of mail and are forcing organizations to add more boxes each year to keep pace with the continued onslaught of malicious mail.
Enterprises across the world are adopting cloud based email security solutions. Cloudsolutions offer enhanced security and scalability, while also offering lower cost and reduced maintenance overhead. Zscaler's Email Security Cloud offers a complete portfolio of email capabilities including malware protection, mail routing control, and data loss prevention. The cloud also offers seamless integration with active directory, a single administration and reporting portal to manage users globally, and the reliability and support that Zscaler is known for around the world.
Zscaler is already regarded as the global leader in cloud based web security. By adding email security, Zscaler now offers companies a single vendor solution for integrated email and web SaaS security.

Benefits
Power
- Over one billion people utilize Zscaler's Anti-Spam technology
- Eight fully integrated modules covering email security, routing,and DLP
- Powerful cloud based portal for policy, adminstration, and reporting
Simplicity
- Intuitive policy manager makes policy setup easy
- Deploy in minutes – simply point your MX record to Zscaler
- Cloud based quarantine
Cost Savings
- No appliances, no software, no desktop clients
- No upfront costs, pay as you go
- No buying excess capacity (additional appliances) – cloud scales as you need capacity
Only From Zscaler
Traditional security vendors will tell you they have embraced the cloud, but look deeper. Building and running a cloud is complicated. Zscaler is the largest company in the world focused solely on cloud security. Our R&D centers span three continents, our cloud operates at four 9s availability, and our cloud specific patents stand at 30 and growing. Join the companies from 140 countries, who have thrown away their hardware and software, and moved to the Zscaler Email and Web Security Cloud. Security made simple!
In the Cloud:
Who'S On The Cloud Today?
Millions of users across 140 countries utilize the Zscaler Email Security Cloud every day. Companies from every sector including financial services, manufacturing, retail, government, education, as well as multi-billion dollar conglomerates have moved all their employees to the Zscaler Email Security Cloud.
Cloud Infrastructure
Multiple Data Centers – The cloud is deployed across 40 data centers around the world, providing access to the cloud locally. Zscaler's Mail Transfer Agent (MTA) architecture is fully multi-tenant, enabling any organization to use any of Zscaler's Enfocement Nodes (ZEN). NanoLogTM technology ensures that all the logs are consolidated, correlated, and made available to the administrator in real-time. Zscaler's architecture was built ground up to deliver SaaS without compromise.
High Reliability & Availability – Each ZEN can operate as a enforcement node for email or web.With over 40 data centers, N-way redundandancy ensures that the cloud is always available. Traffic from any ZEN can fail over to any other ZEN across the world, ensuring high availability, despite any regional failures such as natural disasters. All cloud components communicate with each other over secure links.
Privacy & Security – Our multi-tenant architecture was built from the ground up to ensure the highest levels of privacy and security. From Fortune 10 companies, to the most demanding government agencies in the world, our cloud has been tested and certified to be ultra-secure. The cloud is compliant with the most demanding data privacy regulations globally. Our data centers are located in facilities around the world with 24/7 monitoring and physical security with redundant power, cooling, and multiple internet uplinks. The ZENs do not store any transaction data to ensure highest level of privacy and security.

Anti-Virus & Anti-Spyware – The cloud is constantly kept up to date with the latest signatures and dynamic counter measures to protect against a comprehensive array of spyware and viruses. Companies no longer need to push signatures to datacenter hardware or end user desktops;It is all done in the cloud.
Anti-Spam – A world-class reputation engine front-ends Zscaler's anti-spam solution. Reputation and spam updates are sent out to the cloud every 30 seconds to block the latest spam outbreaks. The Anti-Spam engine detects image spam, malicious URLs, and mutations in real-time. Each user gets their individual quarantine portal where they can release or drop suspect spam emails.
Availability –Zscaler simplifies disaster recovery measures with a highly reliable cloud architecture. Delivery Assurance: Zscaler receives and holds emails if the organization's exchange server is unavailable. DDoS Protection: Zscaler mitigates all attacks and denial of service attempts in the cloud, keeping your network, exchange server, and firewalls free from excessive unwanted traffic. Cloud based directory harvest attack prevention ensures your servers as well as your information is protected.
Email Routing Services In The Cloud
Mail Flow Policy – Through simple and intuitive policy rules Zscaler offers very granular mail flow rules that allow any email to be routed based on sender, receiver, and attachment file types.
Alias & Masquerading – Alias management, mail routing, and creating copies is simplified through the alias and masquerading policies. Organizations that have multiple email domains can ensure that consistent email addresses are presented for any emails external to the organization.
Encryption – Zscaler always attempts secure delivery of email messages when connecting to a remote MTA. Based on the combination of sender, receiver, and content of an email, administrators can enforce delivery of emails over an encrypted channel.
Email Data Loss Prevention (DLP) Services In The Cloud
DLP Dictionaries – Zscaler provides dictionaries that can detect three forms of data: Well defined numbers (Credit Cards, SSN, Canadian CSIN) where a full checksum is performed to minimize false positives, Document detection(Financial Statements, Medical statements, Source code) are ArtificaI Intelligence engines that detect this form of documents,andCustom Phrases where an administrator can define any important phrases to be detected in documents and conversations that leave the organization.
DLP Engines – Dictionaries are combined to form engines for detecting and blocking transactions to enforce PCI or HIPAA compliance. In addition, administrators can define their own engines that combine multiple dictionaries to detect and preventloss of intellectual property.
DLP Rules–Zscaler scans all data leaving your organization over any email including the message body and attachments. The engines scan all Microsoft document formats, PDFs, or compressed archives. Rules can be set at the granularity of users, groups, or domains. The actions include encrypted delivery, dropping messages, or notifying the users.
Unified Policy And Reporting Services In The Cloud
Administrators have a single console to create a comprehensive policy across Security, Anti-Spam, Mail Flow Management, and DLP. Administrators manage their own policy and any changes are reflected across the entire cloud insantly.
Zscaler is unique in its ability to provide the IT administrator instantaneous access to logs of any email transaction, anywhere in the world. Through over 20 summary views and interactive drilldown capabilities, the administrator can quickly recover detailed transaction logs for event forensics.

Email Security Suite:
| Email Security Suite | |
|---|---|
| Cloud Platform | |
| Access to any of Zscaler's cloud based data centers globally | Yes |
| High Availability - 99.99% | Yes |
| Near-Zero proxy latency - less than 10 milliseconds | Yes |
| Fully cloud based - no onsite hardware or software | Yes |
| Protect sensitive data with SSL and TLS encryption | Yes |
| Full Active Directory and LDAP Integration with DHAP | Yes |
| Intelligent mail routing to distributed exchange servers | Yes |
| Availability | |
| Delivery assurance if customer's mail server has an outage | Yes |
| DDoS stopped in cloud to protect enterprise infrastructure | Yes |
| Reporting | |
| Real-time reporting - any transaction anywhere in seconds | Yes |
| 2 yrs summary + 6 mo transaction logs (extensible to 7 yrs) | Yes |
| Integrated web and email reports for accurate correlation | Yes |
| Anti-Spam | |
| Granular spam score rules by groups, users, and domains | Yes |
| Individual user quarantine with no space limit | Yes |
| Real-time IP Reputation based filtering | Yes |
| Day-zero outbreak protection | Yes |
| Inbound and outbound spam blocking | Yes |
| Multi-language fully customizatable Quarantine portal | Yes |
| Inline Anti-Virus & Anti-Spyware | |
| Signature based anti-malware protection for any file size | Yes |
| Full inbound/outbound file inspection with near-zero latency | Yes |
| True file type control by users, groups and destinations | Yes |
| Mail Flow Control | |
| Granular rules by user/group/domain for managing delivery | Yes |
| Alias management for inbound and outbound emails | Yes |
| Manage emails for any number of domains in a single policy | Yes |
| True file-type detection for blocking attachments | Yes |
| Encryption | |
| Mail flow policy based enforcement of encryption | Yes |
| Enforce encryption based on detection of sensitive content | (optional) |
| Data Loss Prevention | (optional) |
| Inline scanning of all email leaving the organization | |
| Log, block, or quarantine emails with confidential data | |
| Inspect Office, Adobe and multi layered zip files | |
| Customized phrase dictionary with fuzzy matching | |
| Predefined engines + dictionaries (HIPPA, PCI, credit cards) | |
Documentation:
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Download the Zscaler Enterprise Email Security Datasheet (PDF).
