Add SMTP server greeting

Signed-off-by: Mroik <mroik@delayed.space>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/smtp.rs b/src/smtp.rs
index f8cf0ee..b77a0b6 100644
--- a/src/smtp.rs
+++ b/src/smtp.rs
@@ -49,6 +49,12 @@ impl SessionHandler {
         let mut r = BufReader::new(&stream);
         let mut buffer = String::new();
 
+        writer.write_all(
+            Reply::Ready(String::from(SERVER_NAME))
+                .to_string()
+                .as_bytes(),
+        )?;
+
         loop {
             if r.read_line(&mut buffer)? == 0 {
                 break;
@@ -93,12 +99,14 @@ impl Default for SessionState {
 }
 
 enum Reply {
+    Ready(String),
     Completed(String),
 }
 
 impl ToString for Reply {
     fn to_string(&self) -> String {
         match self {
+            Reply::Ready(hostname) => format!("220 {}", hostname),
             Reply::Completed(hostname) => format!("250 {}", hostname),
         }
     }