This step is displayed only when installing KSMG on Astra Linux Special Edition.
You can specify if you want to enable the mandatory access control mode support in KSMG. This step is displayed at the previous step, you selected automatic integration with Exim.
Support of the mandatory access control mode allows KSMG to scan email messages with non-zero mandatory level labels and security categories in Astra Linux Special Edition operating systems. For details, see https://wiki.astralinux.ru/pages/viewpage.action?pageId=27362553.
If mandatory access control is being used in Astra Linux Special Edition 1.7 or 1.8, you must enable the mandatory access control mode support in KSMG.
To enable the support of the mandatory access control mode:
yes.