- Kaspersky Secure Mail Gateway
- The Kaspersky Secure Mail Gateway interface
- Application licensing
- About the End User License Agreement
- About the license certificate
- About the key
- About the key file
- About the activation code
- About the subscription
- About data provision
- Modes of Kaspersky Secure Mail Gateway operation under license
- Adding an activation code
- Adding a key file
- Removing a key
- Monitoring license key status
- Configuring warnings about upcoming license key expiration
- Purchasing a license
- Renewing a license
- Application installation and setup
- Deploying a virtual machine in the management console of the VMware ESXi hypervisor
- Deploying a virtual machine in the web interface of VMware vSphere
- Deploying a virtual machine in the management console of the Microsoft Hyper-V Manager hypervisor
- Deploying a virtual machine using Microsoft SCVMM
- Application installation and setup
- Removing the application
- Preparing for removing the application
- Deleting a virtual machine in the management console of the VMware ESXi hypervisor
- Deleting a virtual machine in the web interface of VMware vSphere
- Deleting a virtual machine in the management console of the Microsoft Hyper-V hypervisor
- Deleting a virtual machine using Microsoft SCVMM
- Getting started with the application
- Monitoring of program operation
- Using message processing rules
- Viewing the rule table
- Configuring rule table display
- Message processing rule configuration scenario
- Creating message processing rules
- Configuring Anti-Virus protection
- Configuring URL Advisor
- Configuring Anti-Spam protection
- Configuring Anti-Phishing protection
- Configuring Content Filtering
- Mail Sender Authentication
- Notification settings for message scan events
- Adding a Warning about insecure message
- Adding email disclaimers
- Configuring KATA protection
- Viewing rule information
- Enabling and disabling a message processing rule
- Changing rule settings
- Deleting message processing rules
- Allowlists and denylists
- Managing the cluster
- Creating a new cluster
- Viewing the cluster node table
- Configuring the display of the cluster node table
- Viewing information about a cluster node
- Adding a node to the cluster
- Modifying node settings
- Removing a node from a cluster
- Changing the role of a node in a cluster
- Deleting the cluster
- Restarting a cluster node
- Managing the SSL certificate of the cluster node
- Checking data integrity
- Modifying the network settings of a cluster node
- Managing roles and user accounts
- Backup
- Configuring Backup settings
- Configuring personal Backup
- Viewing the table of objects in Backup
- Configuring the display of the table of objects in Backup
- Filtering and finding message copies in Backup
- Viewing information about a message in Backup
- Delivering a message from Backup
- Downloading a message from Backup
- Deleting a message copy from Backup
- Event log
- Message queue
- Reports
- General protection settings
- About computer protection against certain legitimate applications
- Configuring the Anti-Virus module
- Configuring URL Advisor
- Configuring the Anti-Spam module
- Configuring the Anti-Phishing module
- Configuring Content Filtering
- Configuring external services
- Preparing to configure SPF and DMARC Mail Sender Authentication for outgoing messages
- Configuring date and time
- Configuring the proxy server connection settings
- Downloading upgrade packages
- Database update for Kaspersky Secure Mail Gateway
- Exporting and importing settings
- Participating in Kaspersky Security Network and using Kaspersky Private Security Network
- Integration with an external directory service
- KATA protection
- Integration with a single KATA server
- Integration with multiple servers of the KATA cluster
- Creating a configuration file for the built-in balancer
- Configuring and running the built-in balancer on a cluster node
- Adding a KATA server
- Configuring KATA protection settings
- KATA integration dashboard
- Adding, modifying, and deleting IP addresses of KATA servers
- Disabling KATA integration
- Managing the application over SNMP
- Configuring the snmpd service in the operating system
- Enabling and disabling the use of the SNMP protocol in Kaspersky Secure Mail Gateway
- Configuring SNMP server connection settings
- Enabling and disabling forwarding of SNMP traps
- Configuring encryption of SNMP connections
- Description of MIB objects of Kaspersky Secure Mail Gateway
- Exporting MIB objects
- Email notifications for Kaspersky Secure Mail Gateway
- Authentication using the single sign-on technology
- Connecting to cluster nodes over the SSH protocol
- Editing MTA settings
- DKIM signature for outgoing messages
- Using the TLS protocol in the operation of Kaspersky Secure Mail Gateway
- Domains and configuration of email routing
- Publishing application events to a SIEM system
- Contacting Technical Support
- Glossary
- Advanced persistent threat (APT)
- Anti-Phishing
- Anti-Spam
- Anti-Spam Quarantine
- Anti-Virus
- Backup
- BEC attack
- Certificate fingerprint
- Cluster
- Content Filtering
- Control node
- Directory service
- DKIM Mail Sender Authentication
- DMARC Mail Sender Authentication
- Email notification
- Heuristic analysis
- Kaspersky Anti Targeted Attack Platform
- Kaspersky Private Security Network
- Kaspersky Security Network (KSN)
- Kerberos authentication
- Key file
- Keytab file
- LDAP
- Malicious links
- Moebius service
- MTA
- NTLM authentication
- Phishing
- PTR record
- Reputation filtering
- SCL rating
- Secondary node
- Service Principal Name (SPN)
- SIEM system
- SMTP verification
- SNMP agent
- SNMP trap
- Spam
- SPF Mail Sender Authentication
- Spoofing
- TLS encryption
- Update source
- Virtual machine
- Information about third-party code
- Trademark notices
Using the TLS protocol in the operation of Kaspersky Secure Mail Gateway > Managing TLS certificates
Managing TLS certificates
Managing TLS certificates
Processing messages transmitted over encrypted TLS connections requires a TLS certificate. When you create a cluster, the application automatically creates a self-signed certificate and uses is as the active certificate. This certificate is displayed in the table of TLS certificates as Default Cert.
If you do not want to use this default certificate, you can add one or more TLS certificates and make one of the added certificates active. The other certificates are displayed in the table with the switch turned off. You can make a different certificate active at any time.
You can use certificates of the following types:
A comparison of certificate types supported by the application is provided in the following table.
Comparison of supported certificate types
Property |
Self-signed |
CSR-based |
PFX |
|---|---|---|---|
Must use a certification authority |
No |
Yes |
Yes |
The private key of the certificate is stored outside of the cluster |
No |
No |
Yes |
Can manually configure the certificate |
Can populate only some fields |
Can populate only some fields |
Yes |
|
In this section Adding a self-signed certificate Adding a CSR-based certificate |
Article ID: 207395, Last review: Jan 24, 2025