--- commands.c.orig	2016-10-08 19:30:21 UTC
+++ commands.c
@@ -185,7 +185,7 @@ int mutt_display_message (HEADER *cur)
     {
       if (cur->security & GOODSIGN)
       {
-	if (!crypt_smime_verify_sender(cur))
+	if (option(OPTSMIMENOSENDER) || !crypt_smime_verify_sender(cur))
 	  mutt_message ( _("S/MIME signature successfully verified."));
 	else
 	  mutt_error ( _("S/MIME certificate owner does not match sender."));
--- contrib/smime.rc.orig	2016-10-08 19:30:21 UTC
+++ contrib/smime.rc
@@ -8,7 +8,10 @@ set smime_is_default
 
 # Uncomment this if you don't want to set labels for certificates you add.
 # unset smime_ask_cert_label
-
+ 
+# Uncomment this if you don't want to check for sender's email address
+# set smime_dont_check_sender = yes
+  
 # Passphrase expiration
 set smime_timeout=300
 
--- init.h.orig	2016-10-08 19:35:50 UTC
+++ init.h
@@ -2946,6 +2946,15 @@ struct option_t MuttVars[] = {
   ** alongside the documentation.
   ** (S/MIME only)
   */
+  { "smime_dont_check_sender",	DT_BOOL, R_NONE, OPTSMIMENOSENDER, 0 },
+  /*
+  ** .pp
+  ** This flag controls wether you want the skip the check for the sender's
+  ** email address against the email address stored in the certificate. 
+  ** This can be useful if most of your email senders use SMIMEv3 which no
+  ** longer needs email-addresses as part of the certificates.
+  ** It is not set by default.
+  */
   { "smime_decrypt_use_default_key",	DT_BOOL, R_NONE, OPTSDEFAULTDECRYPTKEY, 1 },
   /*
   ** .pp
--- mutt.h.orig	2016-10-08 19:30:21 UTC
+++ mutt.h
@@ -486,6 +486,7 @@ enum
   OPTCRYPTTIMESTAMP,
   OPTSMIMEISDEFAULT,
   OPTASKCERTLABEL,
+  OPTSMIMENOSENDER,
   OPTSDEFAULTDECRYPTKEY,
   OPTPGPIGNORESUB,
   OPTPGPCHECKEXIT,