+--- a/contrib/smime.rc
++++ b/contrib/smime.rc
+@@ -4,33 +4,34 @@
+
+ # If you compiled mutt with support for both PGP and S/MIME, PGP
+ # will be the default method unless the following option is set
+-set smime_is_default
++#set smime_is_default
+
+ # Uncoment this if you don't want to set labels for certificates you add.
+ # unset smime_ask_cert_label
+
+ # Passphrase expiration
+-set smime_timeout=300
++#set smime_timeout=300
+
+ # Global crypto options -- these affect PGP operations as well.
+-set crypt_autosign = yes
+-set crypt_replyencrypt = yes
+-set crypt_replysign = yes
+-set crypt_replysignencrypted = yes
+-set crypt_verify_sig = yes
++#set crypt_autosign = yes
++#set crypt_replyencrypt = yes
++#set crypt_replysign = yes
++#set crypt_replysignencrypted = yes
++#set crypt_verify_sig = yes
+
+ # Section A: Key Management.
+
+ # The (default) keyfile for signing/decrypting. Uncomment the following
+ # line and replace the keyid with your own.
+-set smime_default_key="12345678.0"
++#set smime_default_key="12345678.0"
+
+ # Uncommen to make mutt ask what key to use when trying to decrypt a message.
+ # It will use the default key above (if that was set) else.
+ # unset smime_decrypt_use_default_key
+
+ # Path to a file or directory with trusted certificates
+-set smime_ca_location="~/.smime/ca-bundle.crt"
++#set smime_ca_location="~/.smime/ca-bundle.crt"
++set smime_ca_location=`for f in $HOME/.smime/ca-certificates.crt $HOME/.smime/ca-bundle.crt /etc/ssl/certs/ca-certificates.crt ; do if [ -e $f ] ; then echo $f ; exit ; fi ; done`
+
+ # Path to where all known certificates go. (must exist!)
+ set smime_certificates="~/.smime/certificates"