Cisco Cisco Email Security Appliance C650 ユーザーガイド
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Cisco IronPort AsyncOS 7.1 for Email Configuration Guide
OL-22158-02
Chapter 1 Getting Started with the IronPort Email Security Appliance
IronPort Systems combines hardware, a hardened operating system, application,
and supporting services to produce a purpose-built, rack-mount server appliance
dedicated for enterprise messaging.
and supporting services to produce a purpose-built, rack-mount server appliance
dedicated for enterprise messaging.
The IronPort AsyncOS™ operating system integrates several intelligent features
into the IronPort appliance:
into the IronPort appliance:
•
Anti-Spam at the gateway, through the unique, multi-layer approach of
SenderBase Reputation Filters and IronPort Anti-Spam integration.
SenderBase Reputation Filters and IronPort Anti-Spam integration.
•
Anti-Virus at the gateway with the Sophos and McAfee Anti-Virus scanning
engines.
engines.
•
Virus Outbreak Filters™, IronPort’s unique, preventive protection against
new virus outbreaks that can quarantine dangerous messages until new
Anti-Virus updates are applied, reducing the window of vulnerability to new
virus outbreaks.
new virus outbreaks that can quarantine dangerous messages until new
Anti-Virus updates are applied, reducing the window of vulnerability to new
virus outbreaks.
•
Spam Quarantine either on-box or off, providing end user access to
quarantined spam and suspected spam.
quarantined spam and suspected spam.
•
Email Authentication. IronPort AsyncOS supports various forms of email
authentication, including Sender Policy Framework (SPF), Sender ID
Framework (SIDF), and DomainKeys Identified Mail (DKIM) verification of
incoming mail, as well as DomainKeys and DKIM signing of outgoing mail.
authentication, including Sender Policy Framework (SPF), Sender ID
Framework (SIDF), and DomainKeys Identified Mail (DKIM) verification of
incoming mail, as well as DomainKeys and DKIM signing of outgoing mail.
•
IronPort Email Encryption. You can encrypt outgoing mail to address
HIPAA, GLBA and similar regulatory mandates. To do this, you configure an
encryption policy on the Email Security appliance and use a local key server
or hosted key service to encrypt the message.
HIPAA, GLBA and similar regulatory mandates. To do this, you configure an
encryption policy on the Email Security appliance and use a local key server
or hosted key service to encrypt the message.
•
Email Security Manager, a single, comprehensive dashboard to manage all
email security services and applications on the appliance. Email Security
Manager can enforce email security based on user groups, allowing you to
manage IronPort Reputation Filters, Virus Outbreak Filters, Anti-Spam,
Anti-Virus, and email content policies through distinct inbound and outbound
policies.
email security services and applications on the appliance. Email Security
Manager can enforce email security based on user groups, allowing you to
manage IronPort Reputation Filters, Virus Outbreak Filters, Anti-Spam,
Anti-Virus, and email content policies through distinct inbound and outbound
policies.
•
On-box Quarantine areas to hold messages that violate email policies.
Quarantines seamlessly interact with the Virus Outbreak Filters feature.
Quarantines seamlessly interact with the Virus Outbreak Filters feature.
•
On-box message tracking. AsyncOS for Email includes an on-box message
tracking feature that makes it easy to find the status of messages that the
Email Security appliance processes.
tracking feature that makes it easy to find the status of messages that the
Email Security appliance processes.
•
Mail Flow Monitoring of all inbound and outbound email that provides
complete visibility into all email traffic for your enterprise.
complete visibility into all email traffic for your enterprise.