Updated sendmail.mc. After the big CentOS update the sendmail.mc in use was replaced by a new version. Now adding again Spam features. Add these features after the delay_checks

dnl FEATURE(delay_checks)dnl
FEATURE(`dnsbl’,`dnsbl.njabl.org’,`”550 Mail from ” $&{client_addr} “rejected – see http://njabl.org/”‘)dnl
dnl # FEATURE(`dnsbl’,`dnsbl.sorbs.net’,`”554 Rejected ” $&{client_addr}” found in dnsbl.sorbs.net”‘)dnl
FEATURE(`dnsbl’,`relays.ordb.org’,`”554 Rejected ” $&{client_addr} “found in relays.ordb.org”‘)dnl
FEATURE(`dnsbl’, `bl.spamcop.net’, `”550 – Email blocked by SpamCop see: http://spamcop.net/bl.shtml?”$&{client_addr}’)dnl
FEATURE(`dnsbl’,`sbl-xbl.spamhaus.org’,`554 Rejected – see http://www.spamhaus.org/’)dnl