Modes of Kaspersky Secure Mail Gateway operation under license

Kaspersky Secure Mail Gateway can operate in various modes depending on the license.

Unlicensed

Kaspersky Secure Mail Gateway runs in this mode from the time when you install the application and start its web interface and until you add an active key.

Kaspersky Secure Mail Gateway does not scan email messages in Unlicensed mode.

Trial license

In this mode, Kaspersky Secure Mail Gateway scans email messages and updates databases.

When the trial license key expires, Kaspersky Secure Mail Gateway stops scanning email messages and updating databases.

In order for Kaspersky Secure Mail Gateway to resume operation, you have to install a commercial license key.

Commercial license

In this mode, Kaspersky Secure Mail Gateway scans email messages and updates databases.

When the commercial license key expires, Kaspersky Secure Mail Gateway continues scanning email messages but stops updating databases.

To resume database updates, add a new commercial license key or renew the existing commercial license key.

Kaspersky Secure Mail Gateway supports the following types of commercial license keys:

Fully-functional key. When this key is added, the application works in full-functionality mode. This means that it scans for spam, phishing, viruses and other types of malware, employs Link scanning, Content Filtering and Mail Sender Authentication, and scans messages using Kaspersky Anti Targeted Attack Platform.
Key for Anti-Virus protection. When this key is added, the application scans for viruses and other types of malware, employs Link scanning, Mail Sender Authentication and Content Filtering, and scans messages using Kaspersky Anti Targeted Attack Platform. With this key, the application does not scan for spam or phishing content. The status label assigned by the application to a message following scans by these modules contains information regarding limited functionality.

Key denylist

A key can be added to the key denylist in a number of cases. If this has happened, Kaspersky Secure Mail Gateway stops scanning email messages, but continues attempts to update databases in case the key is removed from the list of forbidden keys.

As soon as the key has been removed from the list of forbidden keys, Kaspersky Secure Mail Gateway resumes scanning of email messages in accordance with the valid license.

After message scans are disabled, the following functionality continues to work in the application:

Mail Transfer Agent (MTA)
LDAP server connection
Event log
Application operation reports
Use of the web interface to manage all application settings except protection settings, message processing rules and their related settings for notifications and comments.