diff --git a/tests/imap_features.rs b/tests/imap_features.rs
index 3333b03..59892b2 100644
--- a/tests/imap_features.rs
+++ b/tests/imap_features.rs
@@ -1,5 +1,8 @@
 use std::process::Command;
+use std::net::{Shutdown, TcpStream};
 use std::{thread, time};
+use anyhow::Result;
+use std::io::{Write, Read};
 
 static ONE_SEC: time::Duration = time::Duration::from_secs(1);
 
@@ -11,7 +14,79 @@ fn main() {
         .spawn()
         .expect("daemon should be started");
 
-    thread::sleep(ONE_SEC);
+    let mut max_retry = 10;
+    let mut imap_socket = loop {
+        max_retry -= 1;
+        match (TcpStream::connect("[::1]:1143"), max_retry) {
+            (Err(e), 0) => panic!("no more retry, last error is: {}", e),
+            (Err(e), _) => {
+                println!("unable to connect: {} ; will retry in 1 sec", e);
+            },
+            (Ok(v), _) => break v,
+        }
+        thread::sleep(ONE_SEC);
+    };
 
+    let mut lmtp_socket = TcpStream::connect("[::1]:1025").expect("lmtp socket must be connected");
+
+    println!("-- ready to test imap features --");
+    login(&mut imap_socket).expect("login test");
+    select_inbox(&mut imap_socket).expect("select inbox");
+    inject_email(&mut lmtp_socket).expect("inject email");
+
+    println!("-- test teardown --");
+
+    imap_socket.shutdown(Shutdown::Both).expect("closing imap socket at the end of the test");
+    lmtp_socket.shutdown(Shutdown::Both).expect("closing lmtp socket at the end of the test");
     daemon.kill().expect("daemon should be killed");
 }
+
+fn login(imap: &mut TcpStream) -> Result<()> {
+    let mut buffer: [u8; 1500] = [0; 1500];
+    let mut nbytes = 0;
+    loop {
+        nbytes += imap.read(&mut buffer)?;
+        if buffer[..nbytes].windows(2).any(|w| w == &b"\r\n"[..]) {
+            break
+        }
+    }
+    println!("read: {}", std::str::from_utf8(&buffer[..nbytes])?);
+    assert_eq!(&buffer[..4], &b"* OK"[..]);
+    assert_eq!(&buffer[nbytes-2..nbytes], &b"\r\n"[..]);
+
+    imap.write(&b"10 login alice hunter2\r\n"[..])?;
+
+    let mut nbytes = 0;
+    loop {
+        nbytes += imap.read(&mut buffer)?;
+        if &buffer[nbytes-2..nbytes] == &b"\r\n"[..] {
+            break
+        }
+    }
+    println!("read: {}", std::str::from_utf8(&buffer[..nbytes])?);
+    assert_eq!(&buffer[..5], &b"10 OK"[..]);
+
+    Ok(())
+}
+
+fn select_inbox(imap: &mut TcpStream) -> Result<()> {
+    let mut buffer: [u8; 6000] = [0; 6000];
+
+    imap.write(&b"20 select inbox\r\n"[..])?;
+
+    let mut nbytes = 0;
+    loop {
+        nbytes += imap.read(&mut buffer)?;
+        if buffer[..nbytes].windows(5).any(|w| w == &b"20 OK"[..]) && &buffer[nbytes-2..nbytes] == &b"\r\n"[..] {
+            break
+        }
+    }
+    println!("read: {}", std::str::from_utf8(&buffer[..nbytes])?);
+
+    Ok(())
+}
+
+fn inject_email(lmtp: &mut TcpStream) -> Result<()> {
+
+    Ok(())
+}