feat(mail): new parameter to disable S/MIME certificates

UI/PreferencesUI/UIxAccountEditor.m

@@ -1,6 +1,6 @@
 /* UIxAccountEditor.m - this file is part of SOGo
  *
- * Copyright (C) 2010-2017 Inverse inc.
+ * Copyright (C) 2010-2021 Inverse inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -25,6 +25,8 @@
 
 #import <SOGo/NSDictionary+Utilities.h>
 #import <SOGo/NSString+Utilities.h>
+#import <SOGo/SOGoDomainDefaults.h>
+#import <SOGo/SOGoUser.h>
 
 #import <SOGoUI/UIxComponent.h>
 
@@ -55,6 +57,14 @@
   [super dealloc];
 }
 
+- (BOOL) showSecurityOptions
+{
+  SOGoDomainDefaults *dd;
+
+  dd = [[context activeUser] domainDefaults];
+
+  return [dd mailCertificateEnabled];
+}
 
 - (BOOL) _validateFilterId
 {