Hi, why there is no `reject_rbl_sender` restriction? It probably does not make so much sense as `reject_rbl_client`, but it would help me in my spam battle. Quite a lot of emails come from servers not listed inside Spamhause blacklists, but sender's domain points to blacklisted IP.
For example yesterday came email from: Jaromil <jaromilbfc3...@spplalru.com> from client: bounce.countrcultur.com [66.45.255.215] Client is not blacklisted under Spamhaus, but lets have a look in more detail to sender. # Domain is not listed: > host spplalru.com.dbl.spamhaus.org Host spplalru.com.dbl.spamhaus.org not found: 3(NXDOMAIN) # Check for IP: > host spplalru.com spplalru.com has address 185.140.110.3 # But the domain point on blacklisted server! > host 3.110.140.185.zen.spamhaus.org 3.110.140.185.zen.spamhaus.org has address 127.0.0.2 And this is not a unique case! In fact most of spam that pass my anti-spam setting would be filtered with such restriction according sender domain. Maybe it is more problem of Spamhaus and its list synchronization, I do not know. Or is there any fundamental reason why rejecting emails according sender's domain IP is not a good idea? My best wishes, Martin Jiřička
