Sendmailのバージョンを知るには

Sendmailのバージョンを調べるには下記のコマンドを入力してみましょう。

$ echo \$Z | /usr/sbin/sendmail -bt -d0
Version 8.12.10
 Compiled with: DNSMAP LOG MATCHGECOS MIME7TO8 MIME8TO7 NAMED_BIND
                NETINET NETUNIX NEWDB PIPELINING SCANF USERDB XDEBUG

============ SYSTEM IDENTITY (after readcf) ============
      (short domain name) $w = i175
  (canonical domain name) $j = i175.local-test.XXXX.co.jp
         (subdomain name) $m = local-test.XXXX.co.jp
              (node name) $k = i175.local-test.XXXX.co.jp
========================================================

ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)
Enter <ruleset> <address>
> 8.12.10