diff --git a/dev/Stores/User/App.js b/dev/Stores/User/App.js
index 9825c8951..0a8723c40 100644
--- a/dev/Stores/User/App.js
+++ b/dev/Stores/User/App.js
@@ -4,7 +4,7 @@ import { ThemeStore } from 'Stores/Theme';
 import { arePopupsVisible } from 'Knoin/Knoin';
 
 export const AppUserStore = {
-	allowContacts: () => !!SettingsGet('contactsAllowed')
+	allowContacts: () => !!SettingsGet('contactsAllowed') && !!SettingsGet('contactsExternal')
 };
 
 addObservablesTo(AppUserStore, {
diff --git a/plugins/kolab/KolabAddressBook.php b/plugins/kolab/KolabAddressBook.php
index 8c7df9316..1e01b216a 100644
--- a/plugins/kolab/KolabAddressBook.php
+++ b/plugins/kolab/KolabAddressBook.php
@@ -99,6 +99,11 @@ class KolabAddressBook implements \RainLoop\Providers\AddressBook\AddressBookInt
 		return true;
 	}
 
+	public function IsExternal(): bool
+	{
+		return false;
+	}
+
 	public function SetEmail(string $sEmail) : bool
 	{
 		return true;
diff --git a/plugins/nextcloud/NextcloudAddressBook.php b/plugins/nextcloud/NextcloudAddressBook.php
index c301b8237..4ba57fc5b 100644
--- a/plugins/nextcloud/NextcloudAddressBook.php
+++ b/plugins/nextcloud/NextcloudAddressBook.php
@@ -33,6 +33,11 @@ class NextcloudAddressBook implements \RainLoop\Providers\AddressBook\AddressBoo
 		return true;
 	}
 
+	public function IsExternal(): bool
+	{
+		return true;
+	}
+
 	public function SetEmail(string $sEmail) : bool {
 		return true;
 	}
diff --git a/snappymail/v/0.0.0/app/libraries/RainLoop/Actions.php b/snappymail/v/0.0.0/app/libraries/RainLoop/Actions.php
index eb7356db5..3ebb1de27 100644
--- a/snappymail/v/0.0.0/app/libraries/RainLoop/Actions.php
+++ b/snappymail/v/0.0.0/app/libraries/RainLoop/Actions.php
@@ -678,6 +678,7 @@ class Actions
 					'accountSignMe' => isset($_COOKIE[self::AUTH_SIGN_ME_TOKEN_KEY]),
 
 					'contactsAllowed' => $this->AddressBookProvider($oAccount)->IsActive(),
+					'contactsExternal' => $this->AddressBookProvider($oAccount)->IsExternal(),
 
 					'ViewHTML' => (bool) $oConfig->Get('defaults', 'view_html', true),
 					'ViewImages' => $oConfig->Get('defaults', 'view_images', 'ask'),
diff --git a/snappymail/v/0.0.0/app/libraries/RainLoop/Actions/Accounts.php b/snappymail/v/0.0.0/app/libraries/RainLoop/Actions/Accounts.php
index 7316ddc2e..7c9724e7a 100644
--- a/snappymail/v/0.0.0/app/libraries/RainLoop/Actions/Accounts.php
+++ b/snappymail/v/0.0.0/app/libraries/RainLoop/Actions/Accounts.php
@@ -202,6 +202,7 @@ trait Accounts
 			'accountHash' => $oAccount->Hash(),
 			'mainEmail' => \RainLoop\Api::Actions()->getMainAccountFromToken()->Email(),
 			'contactsAllowed' => $this->AddressBookProvider($oAccount)->IsActive(),
+			'contactsExternal' => $this->AddressBookProvider($oAccount)->IsExternal(),
 			'HideUnsubscribed' => false,
 			'UseThreads' => (bool) $oConfig->Get('defaults', 'mail_use_threads', false),
 			'ReplySameFolder' => (bool) $oConfig->Get('defaults', 'mail_reply_same_folder', false),
diff --git a/snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook.php b/snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook.php
index affaecd99..332836449 100644
--- a/snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook.php
+++ b/snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook.php
@@ -25,6 +25,11 @@ class AddressBook extends AbstractProvider
 		return $this->oDriver && $this->oDriver->IsSupported();
 	}
 
+	public function IsExternal() : bool 
+	{
+		return $this->IsActive() ? $this->oDriver->IsExternal() : false;
+	}
+
 	public function Sync() : bool
 	{
 		return $this->IsActive() ? $this->oDriver->Sync() : false;
diff --git a/snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook/AddressBookInterface.php b/snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook/AddressBookInterface.php
index 564a0d48b..50d773244 100644
--- a/snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook/AddressBookInterface.php
+++ b/snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook/AddressBookInterface.php
@@ -6,6 +6,8 @@ interface AddressBookInterface
 {
 	public function IsSupported() : bool;
 
+	public function IsExternal() : bool;
+
 	public function SetEmail(string $sEmail) : bool;
 
 	public function Sync() : bool;
diff --git a/snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook/PdoAddressBook.php b/snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook/PdoAddressBook.php
index fbf5aeebc..76af282f3 100644
--- a/snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook/PdoAddressBook.php
+++ b/snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook/PdoAddressBook.php
@@ -76,6 +76,11 @@ class PdoAddressBook
 		return \is_array($aDrivers) && \in_array($this->settings->driver, $aDrivers);
 	}
 
+	public function IsExternal(): bool
+	{
+		return false;
+	}
+	
 	public function SetEmail(string $sEmail) : bool
 	{
 		$this->iUserID = $this->getUserId($sEmail);