diff --git a/lib/guardian.rb b/lib/guardian.rb
index 865a2fb6f77..385dccd8c86 100644
--- a/lib/guardian.rb
+++ b/lib/guardian.rb
@@ -365,7 +365,7 @@ class Guardian
   end
 
   def can_invite_to?(object, groups = nil)
-    return false if !can_invite_to_forum?(groups)
+    return false if !authenticated?
     return false if !object.is_a?(Topic) || !can_see?(object)
     return false if groups.present?
 
@@ -385,6 +385,7 @@ class Guardian
   end
 
   def can_invite_via_email?(object)
+    return false if !can_invite_to_forum?
     return false if !can_invite_to?(object)
 
     (SiteSetting.enable_local_logins || SiteSetting.enable_discourse_connect) &&
diff --git a/spec/components/guardian_spec.rb b/spec/components/guardian_spec.rb
index 56d4b0a464e..0185b322179 100644
--- a/spec/components/guardian_spec.rb
+++ b/spec/components/guardian_spec.rb
@@ -548,11 +548,11 @@ describe Guardian do
         expect(Guardian.new(nil).can_invite_to?(topic)).to be_falsey
         expect(Guardian.new(moderator).can_invite_to?(nil)).to be_falsey
         expect(Guardian.new(moderator).can_invite_to?(topic)).to be_truthy
-        expect(Guardian.new(trust_level_1).can_invite_to?(topic)).to be_falsey
+        expect(Guardian.new(trust_level_1).can_invite_to?(topic)).to be_truthy
 
         SiteSetting.max_invites_per_day = 0
 
-        expect(Guardian.new(user).can_invite_to?(topic)).to be_falsey
+        expect(Guardian.new(user).can_invite_to?(topic)).to be_truthy
         # staff should be immune to max_invites_per_day setting
         expect(Guardian.new(moderator).can_invite_to?(topic)).to be_truthy
       end
@@ -575,9 +575,9 @@ describe Guardian do
         expect(Guardian.new(trust_level_2).can_invite_to?(topic)).to be_truthy
       end
 
-      it 'fails for normal users if must_approve_users' do
+      it 'return true for normal users even if must_approve_users' do
         SiteSetting.must_approve_users = true
-        expect(Guardian.new(user).can_invite_to?(topic)).to be_falsey
+        expect(Guardian.new(user).can_invite_to?(topic)).to be_truthy
         expect(Guardian.new(admin).can_invite_to?(topic)).to be_truthy
       end
 
@@ -644,23 +644,6 @@ describe Guardian do
         end
       end
 
-      context "when private messages are enabled" do
-        before do
-          SiteSetting.enable_personal_messages = true
-          SiteSetting.min_trust_level_to_allow_invite = 2
-        end
-
-        it "returns true if user has sufficient trust level" do
-          user.trust_level = 2
-          expect(Guardian.new(user).can_invite_to?(pm)).to be_truthy
-        end
-
-        it "returns false if user has sufficient trust level" do
-          user.trust_level = 1
-          expect(Guardian.new(user).can_invite_to?(pm)).to be_falsey
-        end
-      end
-
       context "when PM has reached the maximum number of recipients" do
         before do
           SiteSetting.max_allowed_message_recipients = 2