This is a simple implementation based off my opensmtpd-filters-go library.
filter "dnsbl" proc-exec "/usr/lib/x86_64-linux-gnu/opensmtpd/filter-dnsbl ix.dnsbl.manitu.net"
listen on "127.0.0.1" port 25 filter dnsbl
This is a simple implementation based off my opensmtpd-filters-go library.
filter "dnsbl" proc-exec "/usr/lib/x86_64-linux-gnu/opensmtpd/filter-dnsbl ix.dnsbl.manitu.net"
listen on "127.0.0.1" port 25 filter dnsbl