diff --git a/common/src/main/java/bisq/common/app/Capabilities.java b/common/src/main/java/bisq/common/app/Capabilities.java
index 25913c9b0a..bf95c15c48 100644
--- a/common/src/main/java/bisq/common/app/Capabilities.java
+++ b/common/src/main/java/bisq/common/app/Capabilities.java
@@ -98,6 +98,10 @@ public class Capabilities {
         return this.capabilities.containsAll(Arrays.asList(capabilities));
     }
 
+    public boolean contains(Capability capability) {
+        return this.capabilities.contains(capability);
+    }
+
     public boolean isEmpty() {
         return capabilities.isEmpty();
     }
diff --git a/common/src/main/java/bisq/common/app/Capability.java b/common/src/main/java/bisq/common/app/Capability.java
index 33040bbfa4..9379c9dd39 100644
--- a/common/src/main/java/bisq/common/app/Capability.java
+++ b/common/src/main/java/bisq/common/app/Capability.java
@@ -40,5 +40,6 @@ public enum Capability {
     SIGNED_ACCOUNT_AGE_WITNESS,         // Supports the signed account age witness feature
     MEDIATION,                          // Supports mediation feature
     REFUND_AGENT,                       // Supports refund agents
-    TRADE_STATISTICS_HASH_UPDATE        // We changed the hash method in 1.2.0 and that requires update to 1.2.2 for handling it correctly, otherwise the seed nodes have to process too much data.
+    TRADE_STATISTICS_HASH_UPDATE,       // We changed the hash method in 1.2.0 and that requires update to 1.2.2 for handling it correctly, otherwise the seed nodes have to process too much data.
+    NO_ADDRESS_PRE_FIX                   // At 1.4.0 we removed the prefix filter for mailbox messages. If a peer has that capability we do not sent the prefix.
 }
diff --git a/core/src/main/java/bisq/core/setup/CoreNetworkCapabilities.java b/core/src/main/java/bisq/core/setup/CoreNetworkCapabilities.java
index fcd0328033..fd951d9859 100644
--- a/core/src/main/java/bisq/core/setup/CoreNetworkCapabilities.java
+++ b/core/src/main/java/bisq/core/setup/CoreNetworkCapabilities.java
@@ -39,7 +39,8 @@ public class CoreNetworkCapabilities {
                 Capability.MEDIATION,
                 Capability.SIGNED_ACCOUNT_AGE_WITNESS,
                 Capability.REFUND_AGENT,
-                Capability.TRADE_STATISTICS_HASH_UPDATE
+                Capability.TRADE_STATISTICS_HASH_UPDATE,
+                Capability.NO_ADDRESS_PRE_FIX
         );
 
         if (config.daoActivated) {