Implemented validation to prevent the creation of conflicting rules:

If a black rule exists for an exact address, no white rule can be created for the same address.

If a white rule exists for an exact address, no black rule can be created for the same address.

Introduced the "Spam Score" field in Settings -> Local domains -> Add/Edit. This allows users to assign a specific spam score to domains. If no specific rule affects an email, this default spam score is applied. Emails with a score higher than the domain's score are automatically quarantined as spam.

Improved Monit configuration to automatically restart the Kaspersky service when necessary, enhancing system reliability and uptime.

Added the ability to apply customer's certificates

This feature is available exclusively for on-premises single-tenant installations.

Allowing SPF authentication.

Username and Password: Enforced minimum and maximum symbols:

Username: Minimum of 4 symbols and maximum of 64 symbols. Spaces at the beginning and end are not allowed.

Password: Minimum of 8 symbols and maximum of 64 symbols. Spaces at the beginning and end are not allowed.

Allowing manual IP authentication.

Updated rules checking mechanisms to correctly handle emails containing specific characters, ensuring accurate application of rules.

Added functionality to include relay IPs in the IP list to bypass spoofing checks. Emails from these IPs are now categorized as L2R (Local-to-Remote) or L2L (Local-to-Local).

Description: Fixed an issue with multiple submission blocks occurring in the Postfix configuration after repeated executions of ms-update-config. This update ensures that the configuration remains clean and efficient after multiple updates.