version: "3.6"

services:
  smtp:
    configs:
      - source: mailfrom_overrides
        target: /overrides/postfix.cf
      - source: sender_logins
        target: /overrides/sender_logins

configs:
  mailfrom_overrides:
    name: ${STACK_NAME}_mailfrom_overrides_${POSTFIX_OVERRIDE_VERSION}
    file: postfix.mailfrom.cf
  sender_logins:
    name: ${STACK_NAME}_sender_logins_${SENDER_LOGIN_VERSIONS}
    file: sender_logins