Prepare 0.10.0-rc.2 (#624)

fixes #622

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "lettre"
 # remember to update html_root_url and README.md (Cargo.toml example and deps.rs badge)
-version = "0.10.0-rc.1"
+version = "0.10.0-rc.2"
 description = "Email client"
 readme = "README.md"
 homepage = "https://lettre.rs"

README.md

@@ -28,8 +28,8 @@
 </div>
 
 <div align="center">
-  <a href="https://deps.rs/crate/lettre/0.10.0-rc.1">
-    <img src="https://deps.rs/crate/lettre/0.10.0-rc.1/status.svg"
+  <a href="https://deps.rs/crate/lettre/0.10.0-rc.2">
+    <img src="https://deps.rs/crate/lettre/0.10.0-rc.2/status.svg"
       alt="dependency status" />
   </a>
 </div>
@@ -71,7 +71,7 @@ To use this library, add the following to your `Cargo.toml`:
 
 ```toml
 [dependencies]
-lettre = "0.10.0-rc.1"
+lettre = "0.10.0-rc.2"
 ```
 
 ```rust,no_run

src/lib.rs

@@ -95,7 +95,7 @@
 //! [Tokio 1.x]: https://docs.rs/tokio/1
 //! [async-std 1.x]: https://docs.rs/async-std/1
 
-#![doc(html_root_url = "https://docs.rs/crate/lettre/0.10.0-rc.1")]
+#![doc(html_root_url = "https://docs.rs/crate/lettre/0.10.0-rc.2")]
 #![doc(html_favicon_url = "https://lettre.rs/favicon.ico")]
 #![doc(html_logo_url = "https://avatars0.githubusercontent.com/u/15113230?v=4")]
 #![forbid(unsafe_code)]

src/message/mod.rs

@@ -401,7 +401,7 @@ impl MessageBuilder {
         // https://tools.ietf.org/html/rfc5322#section-3.6
 
         // Insert Date if missing
-        let res = if self.headers.get::<header::Date>().is_none() {
+        let mut res = if self.headers.get::<header::Date>().is_none() {
             self.date_now()
         } else {
             self
@@ -424,6 +424,10 @@ impl MessageBuilder {
             Some(e) => e,
             None => Envelope::try_from(&res.headers)?,
         };
+
+        // Remove `Bcc` headers now the envelope is set
+        res.headers.remove::<header::Bcc>();
+
         Ok(Message {
             headers: res.headers,
             body,
@@ -559,6 +563,7 @@ mod test {
 
         let email = Message::builder()
             .date(date)
+            .bcc("hidden@example.com".parse().unwrap())
             .header(header::From(
                 vec![Mailbox::new(
                     Some("Каи".into()),