Alex put forth on 4/18/2010 4:45 PM: > Is it possible to use maps_rbl_domains instead of reject_rbl_client > here? It appears this machine has a version of postfix that doesn't > understand reject_rbl_client.
maps_rbl_domains (default: empty) Obsolete feature: use the reject_rbl_client feature instead. reject_rbl_client rbl_domain=d.d.d.d ... *** This feature is available in Postfix 2.0 and later. *** (emphasis mine) Your statement leads me to believe you're using a Postfix version less than 2.0. IIRC, versions less than 2.3 are no longer supported. It appears you _really_ need to upgrade Postfix on that host. And given that it's likely a distribution package, you probably really need to update the OS on that host as well. -- Stan