Você pode usar FEAUTURE (virtusertable) para obter o equivalente de postfix < a href="http://www.postfix.org/postconf.5.html#relay_recipient_maps"> relay_recipients_maps
sendmail.mc
LOCAL_CONFIG
dnl virtusertable works by default only for local email domains
dnl $={VirtHost} lists non local domains served by virtusertable
C{VirtHost}example.net
divert(0)
dnl _VIRTUSER_STOP_ONE_LEVEL_RECURSION_ is described in m4/proto.m4 file
define('_VIRTUSER_STOP_ONE_LEVEL_RECURSION_')dnl
FEATURE('virtusertable')
arquivo virtuável (requer compilação makemap):
# list of valid emails in example.net
[email protected] %0
[email protected] %0
# default entry for example.net
@example.net ERROR:5.1.1:550 User unknown
link news: comp.mail.sendmail thread de 2006.
BTW você pode usar FEATURE (ldap_routing) com mapas padrão de sendmail (hash, btree, ..) em vez de pesquisas LDAP.