--- version: "3.8" services: vaultwarden: environment: SMTP_HOST: ${VAULTWARDEN_SMTP_HOST:?err} SMTP_FROM: ${VAULTWARDEN_SMTP_FROM:?err} SMTP_FROM_NAME: ${VAULTWARDEN_SMTP_FROM_NAME:?err} SMTP_SECURITY: ${VAULTWARDEN_SMTP_SECURITY:?err} SMTP_PORT: ${VAULTWARDEN_SMTP_PORT:?err} SMTP_USERNAME: ${VAULTWARDEN_SMTP_USERNAME:?err} SMTP_PASSWORD: ${VAULTWARDEN_SMTP_PASSWORD:?err} SMTP_AUTH_MECHANISM: ${VAULTWARDEN_SMTP_AUTH_MECHANISM:?err}