Defined in 3 files as a macro:
- external/ibm-public/postfix/dist/src/bounce/bounce_notify_service.c, line 172 (as a macro)
- external/ibm-public/postfix/dist/src/bounce/bounce_one_service.c, line 142 (as a macro)
- external/ibm-public/postfix/dist/src/bounce/bounce_warn_service.c, line 161 (as a macro)