Merge branch 'mjog/1126-dot-stuffing' into 'mainline'

Fix email being sent truncated after a line starting with a dot.

Closes #1126

See merge request GNOME/geary!647

src/engine/smtp/smtp-client-connection.vala

@@ -110,14 +110,14 @@ internal class Geary.Smtp.ClientConnection : BaseObject, Logging.Source {
     }
 
     /**
-     * Sends a block of data (mail message) by first issuing the DATA command and transmitting
-     * the block if the appropriate response is sent.
+     * Sends a block of data
      *
-     * Dot-stuffing is performed on the data if !already_dotstuffed.  See
-     * [[http://tools.ietf.org/html/rfc2821#section-4.5.2]]
+     * This first issues a DATA command and transmits the block if the
+     * appropriate response is sent.
      *
-     * Returns the final Response of the transaction.  If the ResponseCode is not a successful
-     * completion, the message should not be considered sent.
+     * Returns the final Response of the transaction. If the
+     * ResponseCode is not a successful completion, the message should
+     * not be considered sent.
      */
     public async Response send_data_async(Memory.Buffer data,
                                           GLib.Cancellable? cancellable = null)

src/engine/smtp/smtp-client-session.vala

@@ -215,7 +215,7 @@ public class Geary.Smtp.ClientSession : BaseObject, Logging.Source {
 
         // DATA
         response = yield cx.send_data_async(
-            email.get_rfc822_buffer(), cancellable
+            email.get_rfc822_buffer(SMTP_FORMAT), cancellable
         );
         if (!response.code.is_success_completed())
             response.throw_error("Unable to send message");