Black and white lists of addresses

This section contains information about black and white lists of email addresses that you can create and edit in Kaspersky Secure Mail Gateway.

About black and white lists of addresses

Black and white lists of addresses can be used to fine-tune the mail system's response to messages that are not spam officially (such as news feeds). Black lists of addresses can also be used to configure the application to block messages containing threats and spam before Kaspersky Security databases have been updated.

There are two types of black and white lists of addresses:

• Custom. They contain addresses of message senders for the given recipient. A custom white list of addresses allows messages to pass through without anti-spam scanning. The messages are still scanned for phishing, viruses, and other threats, and content filtering is also performed.
• Global. Contain the addresses of message senders and recipients. You can configure such lits in the preset WhiteList and BlackList message processing rules. You can also create rules and specify the addresses of senders and recipients whose messages should be rejected without scanning or delivered without scanning. A global white list of addresses allows messages to pass through without scanning for spam, viruses, and phishing threats.

Messages whose sender and recipients have their addresses on a global black or white list of addresses are processed as follows:

• If the addresses of the sender and recipients of a message are on a global black list of addresses, the application rejects the message. The message does not reach the mail server of Kaspersky Secure Mail Gateway.
• If the addresses of the sender and recipients of a message are on a global white list of addresses, the application refers the message for further scanning, bypassing scanning by the Anti-Spam, Anti-Virus, and Anti-Phishing components.
• If the addresses of the sender and recipients of a message are both on the global white list and the global black list of addresses, the application processes the message according to a rule with a higher priority.

A message is processed according to the rule of a custom white list or personal black list of addresses if the rules of the global black list and global white list of addresses do not apply to it.

A message whose sender has his address on a custom black or white list of addresses is processed as follows:

• If the message sender's address is on a custom black list of addresses and one of the addresses of the message recipients belongs to the owner of the custom black list of addresses, the message is not delivered to the recipient who owns the custom black list. Depending on the action configured for messages from senders on a custom black list, the message is either deleted or quarantined.
• If the sender's address is on a custom white list of addresses, the message is delivered to the recipient depending on the results of scanning for viruses, phishing threats, and content filtering.
• If the sender's address is both on a custom white list and black list of addresses, the message is processed according to the rules of the personal white list of addresses.

Configuring the custom black list of addresses

To configure the custom black list of email addresses:

1. In the main window of the application web interface, open the management console tree and select the Settings section and Protection subsection.
2. In the Custom black list settings section, click any link to open the Black list settings window.
3. In the If the sender's address is blacklisted list, select one of the following actions to take on messages:
   • Delete message if you want to delete messages from a sender whose address is in the custom black list.
   • Reject if you want to reject messages from a sender whose address is in the custom black list.
4. In the Move message to Backup list, select one of the following values:
   • Yes if you want to move messages from a sender whose address is in the custom black list to Backup.
   • No if you do not want to move messages from a sender whose address is in the custom black list to Backup.
5. Click the Apply button.

Viewing custom black and white lists of addresses

To be able to access custom black and white lists of addresses from the web interface of Kaspersky Secure Mail Gateway, you have to add a connection to an LDAP server.

To be able to manage custom black and white lists of addresses from the web interface of Kaspersky Secure Mail Gateway, you have to connect to an LDAP server.

To view custom black and white lists of email addresses:

1. In the main window of the application web interface, open the management console tree and select the Settings section and LDAP subsection.
2. In the Custom Black and White lists of addresses settings group, click the Access to black and white lists link to open the Custom Black and White lists of addresses window.
3. In the Search by user name or group name in the LDAP directory service field, type a search string for searching custom black and white lists of addresses by user name or group name in the LDAP directory service.
4. Click the Find button on the right of the entry field.

   A list of LDAP accounts matching the search string you specified appears under the entry field.

5. Click the LDAP account of the user whose custom black and white lists of addresses you want to view.
6. After you finish managing the user's custom lists, click the Close button.

The Custom black and white lists of addresses window closes.

Adding addresses to custom black and white lists of addresses

To be able to access custom black and white lists of addresses from the web interface of Kaspersky Secure Mail Gateway, you have to add a connection to an LDAP server.

To be able to manage custom black and white lists of addresses from the web interface of Kaspersky Secure Mail Gateway, you have to connect to an LDAP server.

To add addresses to custom black and white lists of email addresses:

1. In the main window of the application web interface, open the management console tree and select the Settings section and LDAP subsection.
2. In the Custom Black and White lists of addresses settings group, click the Access to black and white lists link to open the Custom Black and White lists of addresses window.
3. In the Search by user name or group name in the LDAP directory service field, type a search string for searching custom black and white lists of addresses by user name or group name in the LDAP directory service.
4. Click the Find button on the right of the entry field.

   A list of LDAP accounts matching the search string you specified appears under the entry field.

5. Click the LDAP account of the user to whose custom black and white lists of addresses you want to add addresses.

   The custom black and white lists of addresses appear in the lower part of the window.

6. In the address entry field of the list of addresses to which you want to add email addresses, type the email address that you want to add.

   The email addresses are entered one at a time. Repeat the process of adding addresses to the list for all email addresses that you are adding.

   You can use the symbols "*" and "?" to create an address mask, and regular expressions beginning with the prefix "reg".

   Regular expressions are not case-sensitive.

7. Click the Add button to the right of the entry field.

   The email address that has been added appears in the list you have selected.

8. After you finish managing the user's custom lists, click the Apply button.

The Custom black and white lists of addresses window closes.

Removing addresses from custom black and white lists of addresses

To be able to access custom black and white lists of addresses from the web interface of Kaspersky Secure Mail Gateway, you have to add a connection to an LDAP server.

To be able to manage custom black and white lists of addresses from the web interface of Kaspersky Secure Mail Gateway, you have to connect to an LDAP server.

To remove addresses from custom black and white lists of email addresses:

1. In the main window of the application web interface, open the management console tree and select the Settings section and LDAP subsection.
2. In the Custom Black and White lists of addresses settings group, click the Access to black and white lists link to open the Custom Black and White lists of addresses window.
3. In the Search by user name or group name in the LDAP directory service field, type a search string for searching custom black and white lists of addresses by user name or group name in the LDAP directory service.
4. Click the Find button on the right of the entry field.

   A list of LDAP accounts matching the search string you specified appears under the entry field.

5. Click the LDAP account of the user from whose custom black and white lists of addresses you want to remove addresses.

   The custom black and white lists of addresses appear in the lower part of the window.

6. In the list of addresses from which you want to remove the address, select the email address that you want to remove.

   The email addresses are deleted one at a time. Repeat the process of removing addresses from the list for all email addresses that you are deleting.

7. Click the Delete button on the right of the list of addresses.

   The email address is removed from the list of you have selected.

8. After you finish managing the user's custom lists, click the Apply button.

The Custom black and white lists of addresses window closes.