Merge branch 'master' of github.com:Mikroservices/Smtp

Author: mczachurski

Sources/Smtp/Models/Email.swift

@@ -108,8 +108,9 @@ extension Email {
                 out.writeString("\(self.body)\r\n")
                 out.writeString("--\(boundary)\r\n")
             } else {
-                out.writeString("--\(boundary)\r\n\r\n")
-                out.writeString("\(self.body)\r\n")
+                out.writeString("--\(boundary)\r\n")
+                out.writeString("Content-Type: text/plain; charset=\"UTF-8\"\r\n\r\n")
+                out.writeString("\(self.body)\r\n\r\n")
                 out.writeString("--\(boundary)\r\n")
             }