group email account is system read only field

application/Espo/Classes/FieldProcessing/InboundEmail/IsSystemLoader.php

@@ -0,0 +1,27 @@
+<?php
+/**LICENSE**/
+
+namespace Espo\Classes\FieldProcessing\InboundEmail;
+
+use Espo\Core\FieldProcessing\Loader;
+use Espo\Core\FieldProcessing\Loader\Params;
+use Espo\Core\Utils\Config;
+use Espo\Entities\InboundEmail;
+use Espo\ORM\Entity;
+
+/**
+ * @implements Loader<InboundEmail>
+ */
+class IsSystemLoader implements Loader
+{
+    public function __construct(
+        private Config $config,
+    ) {}
+
+    public function process(Entity $entity, Params $params): void
+    {
+        $isSystem = $entity->getEmailAddress() === $this->config->get('outboundEmailFromAddress');
+
+        $entity->set('isSystem', $isSystem);
+    }
+}

application/Espo/Resources/i18n/en_US/InboundEmail.json

@@ -40,9 +40,11 @@
         "fromName": "From Name",
         "smtpIsShared": "SMTP Is Shared",
         "smtpIsForMassEmail": "SMTP Is for Mass Email",
-        "groupEmailFolder": "Group Email Folder"
+        "groupEmailFolder": "Group Email Folder",
+        "isSystem": "Is System"
     },
     "tooltips": {
+        "isSystem": "Is the system email account.",
         "useSmtp": "The ability to send emails.",
         "reply": "Notify email senders that their emails has been received.\n\n Only one email will be sent to a particular recipient during some period of time to prevent looping.",
         "createCase": "Automatically create case from incoming emails.",

application/Espo/Resources/layouts/InboundEmail/detail.json

@@ -16,6 +16,10 @@
             [
                 {"name":"addAllTeamUsers"},
                 {"name": "excludeFromReply"}
+            ],
+            [
+                {"name":"isSystem"},
+                false
             ]
         ],
         "tabBreak": true,

application/Espo/Resources/metadata/entityDefs/InboundEmail.json

@@ -73,6 +73,13 @@
             "tooltip": true,
             "default": true
         },
+        "isSystem": {
+            "type": "bool",
+            "notStorable": true,
+            "readOnly": true,
+            "directAccessDisabled": true,
+            "tooltip": true
+        },
         "sentFolder": {
             "type": "varchar",
             "view": "views/inbound-email/fields/folder",

application/Espo/Resources/metadata/recordDefs/InboundEmail.json

@@ -12,5 +12,8 @@
     ],
     "updateInputFilterClassNameList": [
         "Espo\\Classes\\Record\\InboundEmail\\PasswordsInputFilter"
+    ],
+    "readLoaderClassNameList": [
+        "Espo\\Classes\\FieldProcessing\\InboundEmail\\IsSystemLoader"
     ]
 }