diff --git a/FlowCrypt/Functionality/Mail Provider/Message Provider/MessageService.swift b/FlowCrypt/Functionality/Mail Provider/Message Provider/MessageService.swift
index fb1251f65..ec03e4489 100644
--- a/FlowCrypt/Functionality/Mail Provider/Message Provider/MessageService.swift	
+++ b/FlowCrypt/Functionality/Mail Provider/Message Provider/MessageService.swift	
@@ -22,12 +22,14 @@ struct ProcessedMessage {
     }
 
     enum MessageSignature: Hashable {
-        case good, unsigned, error(String), missingPubkey(String), bad, pending
+        case good, goodMixed, unsigned, error(String), missingPubkey(String), partial, bad, pending
 
         var message: String {
             switch self {
             case .good:
                 return "message_signed".localized
+            case .goodMixed:
+                return "message_signature_good_mixed".localized
             case .unsigned:
                 return "message_not_signed".localized
             case .error(let message):
@@ -35,6 +37,8 @@ struct ProcessedMessage {
             case .missingPubkey(let longid):
                 let message = "message_missing_pubkey".localizeWithArguments(longid)
                 return "message_signature_verify_error".localizeWithArguments(message)
+            case .partial:
+                return "message_signature_partial".localized
             case .bad:
                 return "message_bad_signature".localized
             case .pending:
@@ -44,9 +48,9 @@ struct ProcessedMessage {
 
         var icon: String {
             switch self {
-            case .good:
+            case .good, .goodMixed:
                 return "lock"
-            case .error, .missingPubkey:
+            case .error, .missingPubkey, .partial:
                 return "exclamationmark.triangle"
             case .unsigned, .bad:
                 return "xmark"
@@ -57,9 +61,9 @@ struct ProcessedMessage {
 
         var color: UIColor {
             switch self {
-            case .good:
+            case .good, .goodMixed:
                 return .main
-            case .error, .missingPubkey:
+            case .error, .missingPubkey, .partial:
                 return .warningColor
             case .unsigned, .bad:
                 return .errorColor
@@ -280,6 +284,10 @@ extension MessageService {
 
         guard signature.match == true else { return .bad }
 
+        guard signature.partial != true else { return .partial }
+
+        guard signature.mixed != true else { return .goodMixed }
+
         return .good
     }
 }
diff --git a/FlowCrypt/Resources/en.lproj/Localizable.strings b/FlowCrypt/Resources/en.lproj/Localizable.strings
index 56a500887..e783ad01e 100644
--- a/FlowCrypt/Resources/en.lproj/Localizable.strings
+++ b/FlowCrypt/Resources/en.lproj/Localizable.strings
@@ -33,8 +33,10 @@
 "message_encrypted" = "encrypted";
 "message_not_encrypted" = "not encrypted";
 "message_signed" = "signed";
+"message_signature_good_mixed" = "signed with mixed keys";
 "message_not_signed" = "not signed";
 "message_missing_pubkey" = "no public key %@";
+"message_signature_partial" = "only partially signed";
 "message_signature_verify_error" = "cannot verify signature: %@";
 "message_bad_signature" = "bad signature";
 "message_signature_pending" = "verifying signature...";
diff --git a/appium/tests/specs/inbox/CheckAllEmailSignatureCases.spec.ts b/appium/tests/specs/inbox/CheckAllEmailSignatureCases.spec.ts
index e3af10387..491425d1b 100644
--- a/appium/tests/specs/inbox/CheckAllEmailSignatureCases.spec.ts
+++ b/appium/tests/specs/inbox/CheckAllEmailSignatureCases.spec.ts
@@ -71,5 +71,15 @@ describe('INBOX: ', () => {
     await EmailScreen.checkEncryptionBadge('not encrypted');
     await EmailScreen.checkSignatureBadge('bad signature');
     await EmailScreen.clickBackButton();
+
+    await SearchScreen.clickBackButton();
+
+    // partially signed only message
+    await MailFolderScreen.clickSearchButton();
+    await SearchScreen.searchAndClickEmailBySubject('Partially signed only message');
+
+    await EmailScreen.checkEncryptionBadge('not encrypted');
+    await EmailScreen.checkSignatureBadge('only partially signed');
+    await EmailScreen.clickBackButton();
   });
 });