^[[ABusyBox64 ~ # sendmail -bt -d0.13 < /dev/null
Version 8.13.4
 Compiled with: DNSMAP LDAPMAP LOG MAP_REGEX MATCHGECOS MILTER MIME7TO8
                MIME8TO7 NAMED_BIND NETINET NETINET6 NETUNIX NEWDB PIPELINING
                SCANF STARTTLS TCPWRAPPERS USERDB USE_LDAP_INIT XDEBUG
    OS Defines: ADDRCONFIG_IS_BROKEN HASFCHOWN HASFCHMOD
                HASGETDTABLESIZE HASINITGROUPS HASLSTAT HASNICE HASRANDOM
                HASRRESVPORT HASSETREGID HASSETREUID HASSETRLIMIT HASSETSID
                HASSETVBUF HASURANDOMDEV HASSTRERROR HASUNAME HASUNSETENV
                HASWAITPID IDENTPROTO NEEDSGETIPNODE REQUIRES_DIR_FSYNC
                USE_DOUBLE_FORK USE_SIGLONGJMP
Kernel symbols: /boot/vmlinux
     Conf file: /etc/mail/submit.cf (default for MSP)
     Conf file: /etc/mail/sendmail.cf (default for MTA)
      Pid file: /var/run/sendmail.pid (default)
 libsm Defines: SM_CONF_LDAP_INITIALIZE SM_CONF_LDAP_MEMFREE
                SM_CONF_LONGLONG SM_CONF_MEMCHR SM_CONF_MSG SM_CONF_SEM
                SM_CONF_SIGSETJMP SM_CONF_SHM SM_CONF_SSIZE_T SM_CONF_STDDEF_H
                SM_CONF_SYS_CDEFS_H SM_CONF_UID_GID DO_NOT_USE_STRCPY
                SM_HEAP_CHECK SM_OS=sm_os_linux SM_VA_STD
   FFR Defines:
Canonical name: BusyBox64.Linux-box
 UUCP nodename: BusyBox64
        a.k.a.: BusyBox64
        a.k.a.: [81.103.87.97]
        a.k.a.: [127.0.0.1]
        a.k.a.: localhost.localdomain
     Conf file: /etc/mail/sendmail.cf (selected)
      Pid file: /var/run/sendmail.pid (selected)

============ SYSTEM IDENTITY (after readcf) ============
      (short domain name) $w = BusyBox64
  (canonical domain name) $j = BusyBox64.Linux-box
         (subdomain name) $m = Linux-box
              (node name) $k = BusyBox64
========================================================

ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)
Enter <ruleset> <address>