Fortinet FortiMail-100, Install Manual

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Key concepts FortiMail web-based manager modes
FortiMail™ Secure Messaging Platform Version 4.0 Patch 1 Install Guide
Revision 2
19
http://docs.fortinet.com/ • Feedback
where
fortimail.example.com
is the FQDN of the FortiMail unit.
FortiMail web-based manager modes
The web-based manager has two modes: basic mode and advanced mode.
•
Basic mode : Provides easy navigation using a simplified set of menu options that
allow for many typical FortiMail unit configurations, and includes the Quick Start
Wizard.
• Advanced mode : Provides the full set of menu options which allows you to achieve
more complex configurations, but does not include the Quick Start Wizard.
Unless otherwise specified, this document describes setup of the FortiMail unit using the
basic mode of the web-based manager.
For more information on basic mode, advanced mode, the Quick Start Wizard, or
configuring your FortiMail unit using either mode of the web-based manager, see the
FortiMail Administration Guide .
FortiMail operation modes
FortiMail units can run in one of three operation modes: gateway mode, transparent mode,
and server mode.
•
Gateway mode : The FortiMail unit acts as a mail transfer agent (MTA), or email
gateway, relaying email to and from the email servers that it protects. It does not locally
store email unless queued or quarantined.
• Transparent mode : The FortiMail unit transparently proxies or relays email traffic to
and from the email servers that it protects. It does not locally store email unless
queued or quarantined.
• Server mode : The FortiMail unit operates as a stand-alone email server and MTA. The
FortiMail unit locally stores email for delivery to its email users. Email users can access
their email using FortiMail webmail, POP3, or IMAP.
All operation modes can scan email traffic for viruses and spam, and can quarantine
suspicious email and attachments.
For more information on the differences between operation modes and configuring the
operation mode, see
“Choosing the operation mode” on page 71 .
FortiMail high availability modes
FortiMail units can be configured to operate in high availability (HA) clusters. FortiMail HA
has two modes: active-passive and config-only.
•
Active-passive HA : Two FortiMail units operate as an HA cluster, synchronizing both
configuration and data, providing failover protection.
• Config-only HA : Up to 25 FortiMail units use an identical configuration, but do not
synchronize data, and therefore operate as independent FortiMail units.
Fortinet recommends HA to achieve uninterrupted service.
Note: Reverse DNS records are required for FortiMail units operating in gateway mode or
server mode. However, they are also required for FortiMail units operating in transparent
mode, unless they have been configured to be completely transparent. For more
information on transparency, see the
FortiMail Administration Guide .