---
credentials:
  secret_key:
    description: Secret key for cryptographic operations in Mailu (must be a 16-byte random string, hex-encoded)
    algorithm: sha256
    validation: ^[a-f0-9]{32}$
  database_password:
    description: Password for the Mailu PostgreSQL or MariaDB database user
    algorithm: bcrypt
    validation: ^\$2[aby]\$.{56}$
  api_token:
    description: Authentication token for accessing the Mailu RESTful API
    algorithm: alphanumeric
    validation: ^[A-Za-z0-9]{32,}$
  initial_administrator_password:
    description: Initial password for the Mailu administrator account (used during setup)
    algorithm: sha256
    validation: ^[a-f0-9]{64}$