We should use /etc/mail/local-host-names and /etc/mail/virtusertable for dynamic configuration

Makefile

@@ -50,6 +50,8 @@ all: sendmail-config mail-aliases sendmail-default sm-client-service sendmail-se
 	cd sendmail-8.16.1/doc/op && install -v -m644 op.ps /usr/share/doc/sendmail-8.16.1
 	openssl req -new -x509 -nodes -out /etc/ssl/private/server.pem -keyout /etc/ssl/private/server.pem -days 3650 -subj "/C=US/ST=Denial/L=Springfield/O=Dis/CN=localhost"
 	echo $$(hostname) > /etc/mail/local-host-names
+	touch /etc/mail/virtusertable
+	makedb -q /etc/mail/virtusertable /etc/mail/virtusertable.db
 	@echo "$$MAIL_ALIASES" > /etc/mail/aliases
 	newaliases
 	install -v -Dm644 sendmail.mc /etc/mail

sendmail.mc

@@ -5,6 +5,8 @@ OSTYPE(linux)dnl
 DOMAIN(generic)dnl
 
 define(`confDONT_PROBE_INTERFACES', `True')dnl
+FEATURE(use_cw_file)dnl
+FEATURE(`virtusertable', `hash -o /etc/mail/virtusertable.db')dnl
 
 dnl ----------------------------------------------------------------------------
 dnl Privacy.