diff --git a/schema/changelog-5.3.xml b/schema/changelog-5.3.xml
new file mode 100644
index 000000000..b574a67d2
--- /dev/null
+++ b/schema/changelog-5.3.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<databaseChangeLog
+  xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
+                      http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.4.xsd"
+  logicalFilePath="changelog-5.3">
+
+  <changeSet author="author" id="changelog-5.3">
+
+    <addColumn tableName="tc_servers">
+      <column name="fixedemail" type="BOOLEAN" defaultValueBoolean="false" />
+    </addColumn>
+
+    <addColumn tableName="tc_users">
+      <column name="fixedemail" type="BOOLEAN" defaultValueBoolean="false" />
+    </addColumn>
+
+  </changeSet>
+
+</databaseChangeLog>
diff --git a/schema/changelog-master.xml b/schema/changelog-master.xml
index 83a1ac865..cea15397d 100644
--- a/schema/changelog-master.xml
+++ b/schema/changelog-master.xml
@@ -33,5 +33,6 @@
   <include file="changelog-5.0.xml" relativeToChangelogFile="true" />
   <include file="changelog-5.1.xml" relativeToChangelogFile="true" />
   <include file="changelog-5.2.xml" relativeToChangelogFile="true" />
+  <include file="changelog-5.3.xml" relativeToChangelogFile="true" />
 
 </databaseChangeLog>
diff --git a/src/main/java/org/traccar/api/security/PermissionsService.java b/src/main/java/org/traccar/api/security/PermissionsService.java
index a3e7a182f..a494c0257 100644
--- a/src/main/java/org/traccar/api/security/PermissionsService.java
+++ b/src/main/java/org/traccar/api/security/PermissionsService.java
@@ -166,13 +166,17 @@ public class PermissionsService {
                 || before.getDeviceReadonly() != after.getDeviceReadonly()
                 || before.getDisabled() != after.getDisabled()
                 || before.getLimitCommands() != after.getLimitCommands()
-                || before.getDisableReports() != after.getDisableReports()) {
+                || before.getDisableReports() != after.getDisableReports()
+                || before.getFixedEmail() != after.getFixedEmail()) {
             if (userId == after.getId()) {
                 checkAdmin(userId);
             } else {
                 checkUser(userId, after.getId());
             }
         }
+        if (before.getFixedEmail() && !before.getEmail().equals(after.getEmail())) {
+            checkAdmin(userId);
+        }
     }
 
     public <T extends BaseModel> void checkPermission(
diff --git a/src/main/java/org/traccar/model/Server.java b/src/main/java/org/traccar/model/Server.java
index e39da1b16..9e248e7bb 100644
--- a/src/main/java/org/traccar/model/Server.java
+++ b/src/main/java/org/traccar/model/Server.java
@@ -177,6 +177,17 @@ public class Server extends ExtendedModel implements UserRestrictions {
         this.disableReports = disableReports;
     }
 
+    private boolean fixedEmail;
+
+    @Override
+    public boolean getFixedEmail() {
+        return fixedEmail;
+    }
+
+    public void setFixedEmail(boolean fixedEmail) {
+        this.fixedEmail = fixedEmail;
+    }
+
     private String poiLayer;
 
     public String getPoiLayer() {
diff --git a/src/main/java/org/traccar/model/User.java b/src/main/java/org/traccar/model/User.java
index 9dd84ad14..0aa67168f 100644
--- a/src/main/java/org/traccar/model/User.java
+++ b/src/main/java/org/traccar/model/User.java
@@ -232,8 +232,6 @@ public class User extends ExtendedModel implements UserRestrictions {
         this.limitCommands = limitCommands;
     }
 
-    private String poiLayer;
-
     private boolean disableReports;
 
     @Override
@@ -245,6 +243,19 @@ public class User extends ExtendedModel implements UserRestrictions {
         this.disableReports = disableReports;
     }
 
+    private boolean fixedEmail;
+
+    @Override
+    public boolean getFixedEmail() {
+        return fixedEmail;
+    }
+
+    public void setFixedEmail(boolean fixedEmail) {
+        this.fixedEmail = fixedEmail;
+    }
+
+    private String poiLayer;
+
     public String getPoiLayer() {
         return poiLayer;
     }
diff --git a/src/main/java/org/traccar/model/UserRestrictions.java b/src/main/java/org/traccar/model/UserRestrictions.java
index 2e4e5e363..1fcc5682e 100644
--- a/src/main/java/org/traccar/model/UserRestrictions.java
+++ b/src/main/java/org/traccar/model/UserRestrictions.java
@@ -20,4 +20,5 @@ public interface UserRestrictions {
     boolean getDeviceReadonly();
     boolean getLimitCommands();
     boolean getDisableReports();
+    boolean getFixedEmail();
 }