diff --git a/Content.Server/_DV/Mail/EntitySystems/MailSystem.cs b/Content.Server/_DV/Mail/EntitySystems/MailSystem.cs
index d990bf2b0d..51d769d3f0 100644
--- a/Content.Server/_DV/Mail/EntitySystems/MailSystem.cs
+++ b/Content.Server/_DV/Mail/EntitySystems/MailSystem.cs
@@ -318,7 +318,7 @@ public sealed class MailSystem : SharedMailSystem
         var accessReader = EnsureComp<AccessReaderComponent>(uid);
         foreach (var access in recipient.AccessTags)
         {
-            Access.AddAccess((uid, accessReader), access);
+            Access.TryAddAccess((uid, accessReader), access);
         }
 
         Dirty(uid, mailComp);
diff --git a/Content.Shared/_DV/Access/ReverseAgentIDCardSystem.cs b/Content.Shared/_DV/Access/ReverseAgentIDCardSystem.cs
index 7d412365a6..24cf9ec34d 100644
--- a/Content.Shared/_DV/Access/ReverseAgentIDCardSystem.cs
+++ b/Content.Shared/_DV/Access/ReverseAgentIDCardSystem.cs
@@ -49,7 +49,7 @@ public sealed class ReverseAgentIDCardSystem : EntitySystem
             return;
 
         _accessReader.SetDenyTags((args.Target.Value, targetAccess), access.DenyTags);
-        _accessReader.SetAccesses((args.Target.Value, targetAccess), access.AccessLists);
+        _accessReader.TrySetAccesses((args.Target.Value, targetAccess), access.AccessLists);
         _accessReader.SetAccessKeys((args.Target.Value, targetAccess), access.AccessKeys);
 
         _popup.PopupClient(Loc.GetString("reverse-agent-access-overwrote"), args.User, args.User);