Cisco Cisco Email Security Appliance C650 Guía Del Usuario
1-7
User Guide for AsyncOS 10.0 for Cisco Email Security Appliances
Chapter 1 Getting Started with the Cisco Email Security Appliance
Cisco Email Security Appliance Overview
•
Cisco Email Security Appliance Overview
The AsyncOS™ operating system includes the following features:
•
Anti-Spam at the gateway, through the unique, multi-layer approach of SenderBase Reputation
Filters and Cisco Anti-Spam integration.
Filters and Cisco Anti-Spam integration.
•
Anti-Virus at the gateway with the Sophos and McAfee Anti-Virus scanning engines.
•
Outbreak Filters™, Cisco’s unique, preventive protection against new virus, scam, and phishing
outbreaks that can quarantine dangerous messages until new updates are applied, reducing the
window of vulnerability to new message threats.
outbreaks that can quarantine dangerous messages until new updates are applied, reducing the
window of vulnerability to new message threats.
•
Policy, Virus, and Outbreak Quarantines provide a safe place to store suspect messages for
evaluation by an administrator.
evaluation by an administrator.
•
Spam Quarantine either on-box or off, providing end user access to quarantined spam and
suspected spam.
suspected spam.
•
Email Authentication. Cisco 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.
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.
•
Cisco 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.
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 Cisco Reputation Filters, Outbreak Filters, Anti-Spam, Anti-Virus,
and email content policies through distinct inbound and outbound policies.
and applications on the appliance. Email Security Manager can enforce email security based on user
groups, allowing you to manage Cisco Reputation Filters, Outbreak Filters, Anti-Spam, Anti-Virus,
and email content policies through distinct inbound and outbound policies.
•
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.
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.
email traffic for your enterprise.
•
Access control for inbound senders, based upon the sender’s IP address, IP address range, or
domain.
domain.
•
Extensive message and content filtering technology allows you to enforce corporate policy and act
on specific messages as they enter or leave your corporate infrastructure. Filter rules identify
messages based on message or attachment content, information about the network, message
envelope, message headers, or message body. Filter actions allow messages to be dropped, bounced,
archived, blind carbon copied, or altered, or to generate notifications.
on specific messages as they enter or leave your corporate infrastructure. Filter rules identify
messages based on message or attachment content, information about the network, message
envelope, message headers, or message body. Filter actions allow messages to be dropped, bounced,
archived, blind carbon copied, or altered, or to generate notifications.
•
Message encryption via secure SMTP over Transport Layer Security ensures messages traveling
between your corporate infrastructure and other trusted hosts are encrypted.
between your corporate infrastructure and other trusted hosts are encrypted.
•
Virtual Gateway™ technology allows the Email Security appliance to function as several email
gateways within a single server, which allows you to partition email from different sources or
campaigns to be sent over separate IP addresses. This ensures that deliverability issues affecting one
IP address do not impact others.
gateways within a single server, which allows you to partition email from different sources or
campaigns to be sent over separate IP addresses. This ensures that deliverability issues affecting one
IP address do not impact others.
•
Protection against malicious attachments and links in email messages, provided by multiple
services.
services.
•
Use Data Loss Prevention to control and monitor the information that leaves your organization.