Question Plesk Email Security

[hasoglu]

Server operating system version

PLSK.10174503.0001

Plesk version and microupdate number

Plesk Obsidian v18.0.49_build1800230110.16 os_CentOS 7

hello, on our linux server Plesk Email Security
delivery but not in any way weeding out spam mails. Has anyone had or solved the problem with these resources? thanks

plesk Obsidian v18.0.49_build1800230110.16 os_CentOS 7
CentOS Linux 7.9.2009 (Core)