Fix SMTPUTF8 test

.travis.yml

@@ -8,16 +8,12 @@ rust:
 before_script:
   - sudo apt-get update -qq
   - sudo apt-get install -y postfix
-  - sudo netstat -taupe
-  - cat /etc/postfix/{main.cf,master.cf}
   - pip install 'travis-cargo<0.2' --user && export PATH=$HOME/.local/bin:$PATH
 script:
   - |
       travis-cargo build &&
-      travis-cargo test
-  -   export RUST_LOG=debug
-  -   ./target/debug/examples/client
-  -   travis-cargo doc
+      travis-cargo test &&
+      travis-cargo doc
 after_success:
   - travis-cargo --only stable doc-upload
   - travis-cargo --only stable coveralls

src/transport/smtp/mod.rs

@@ -313,7 +313,7 @@ impl EmailTransport for SmtpTransport {
                                   self.server_info
                                       .as_ref()
                                       .unwrap()
-                                      .supports_feature(&Extension::EightBitMime)) {
+                                      .supports_feature(&Extension::SmtpUtfEight)) {
             (true, true) => Some("BODY=8BITMIME SMTPUTF8"),
             (true, false) => Some("BODY=8BITMIME"),
             (false, _) => None,