## alias_format
## ask-no
## ask-yes
+## assumed_charset
+## autoencrypt
+## autopgp
+## autosign
+## autosmime
## beep
## beep_new
## bindir
+## ca_certificates_file
+## cert_file
+## charset
## docdir
## dotlock
## dsn_notify
## dsn_return
## editor
+## envelope_from_address
+## file_charset
+## force_tls
+## from
## gecos_mask
## hcache_backend
## homedir
+## hostname
+## mailcap_path
+## mailcap_sanitize
+## mail_check
+## min_dh_prime_bits
## no
+## operating_system
## quit
+## record
+## replyencrypt
+## replysign
+## replysignencrypted
+## send_charset
## sendmail
+## sendmail_wait
## shell
+## shorthost
+## signature
+## spam_separator
+## starttls
## sysconfdir
## tmpdir
+## use_8bitmime
## use_domain
+## use_envelope_from
## username
+## use_sslv3
+## use_tlsv1
+## verify_sig
## version
## yes