diff --git a/plugins/dkim b/plugins/dkim
index c54d9db..5815873 100644
--- a/plugins/dkim
+++ b/plugins/dkim
@@ -191,7 +191,7 @@ sub register {
         }
     }
 
-    $self->register_hook('data_post', 'data_post_handler');
+    $self->register_hook('data_post_headers', 'data_post_handler');
 }
 
 sub data_post_handler {
diff --git a/plugins/dmarc b/plugins/dmarc
index a7b82d2..fde40c2 100644
--- a/plugins/dmarc
+++ b/plugins/dmarc
@@ -91,7 +91,7 @@ sub register {
     }
     else {
         $self->{_dmarc} = Mail::DMARC::PurePerl->new();
-        $self->register_hook('data_post', 'data_post_handler');
+        $self->register_hook('data_post_headers', 'data_post_handler');
     };
 }
 
diff --git a/plugins/domainkeys b/plugins/domainkeys
index 44c037a..2bc5992 100644
--- a/plugins/domainkeys
+++ b/plugins/domainkeys
@@ -83,7 +83,7 @@ sub register {
         }
     }
 
-    $self->register_hook('data_post', 'data_post_handler');
+    $self->register_hook('data_post_headers', 'data_post_handler');
 }
 
 sub data_post_handler {