## gecos_mask
## hcache_backend
## homedir
+## hostname
+## mailcap_path
+## mailcap_sanitize
+## mail_check
## no
+## operating_system
## quit
## send_charset
## sendmail
## sendmail_wait
## shell
+## shorthost
+## spam_separator
## sysconfdir
## tmpdir
## use_8bitmime