Documentation

Linux & Security

Practical guides, configuration examples, verification steps, common mistakes and production notes.

Reduce attack surface and protect credentials.

Detect authentication abuse and control ports.

Block repeated SASL and protocol abuse.

Back up, optimize and troubleshoot mail application databases.

Protect disk space while retaining useful mail logs.

Monitor PowerMTA, Postfix, Dovecot, DNS and databases.

Back up configuration, databases, keys and reports.

Contain compromised SMTP credentials and investigate activity.