diff --git a/crates/managesieve/src/core/session.rs b/crates/managesieve/src/core/session.rs
index 2ec0b38f..da8c50b2 100644
--- a/crates/managesieve/src/core/session.rs
+++ b/crates/managesieve/src/core/session.rs
@@ -43,6 +43,9 @@ impl SessionManager for ManageSieveSessionManager {
                 && session.instance.acceptor.is_tls()
             {
                 if let Ok(mut session) = session.into_tls().await {
+                    let _ = session
+                        .write(&session.handle_capability(SERVER_GREETING).await.unwrap())
+                        .await;
                     session.handle_conn().await;
                 }
             }