Package: sendmail Version: 8.15.2 It seems that SOCKETMAP support for 8.15.2 was dropped, this may be because of a change in the "default" options between 8.14 and 8.15 but it is not consistent.
sendmail -d0.1 -bt < /dev/null Version 8.14.4 Compiled with: DNSMAP LDAPMAP LDAP_REFERRALS LOG MAP_REGEX MATCHGECOS MILTER MIME7TO8 MIME8TO7 NAMED_BIND NETINET NETINET6 NETUNIX NEWDB NIS NISPLUS PIPELINING SASLv2 SCANF SOCKETMAP STARTTLS TCPWRAPPERS USERDB USE_LDAP_INIT XDEBUG Version 8.15.2 Compiled with: DNSMAP IPV6_FULL LDAPMAP LDAP_REFERRALS LOG MAP_REGEX MATCHGECOS MILTER MIME7TO8 MIME8TO7 NAMED_BIND NETINET NETINET6 NETUNIX NEWDB NIS NISPLUS PIPELINING SASLv2 SCANF STARTTLS TCPWRAPPERS USERDB USE_LDAP_INIT XDEBUG I suggest 8.15.2 also be compiled with SOCKETMAP support, to streamline upgrading between the versions. With kind regards, Michiel