diff --git a/src/net/smtp/SMTPTransport.cpp b/src/net/smtp/SMTPTransport.cpp
index cc3fc6ef..65c999bf 100644
--- a/src/net/smtp/SMTPTransport.cpp
+++ b/src/net/smtp/SMTPTransport.cpp
@@ -35,11 +35,14 @@
 #include "vmime/exception.hpp"
 #include "vmime/platform.hpp"
 #include "vmime/mailboxList.hpp"
+#include "vmime/message.hpp"
 
 #include "vmime/utility/filteredStream.hpp"
 #include "vmime/utility/stringUtils.hpp"
 #include "vmime/utility/outputStreamSocketAdapter.hpp"
 #include "vmime/utility/streamUtils.hpp"
+#include "vmime/utility/outputStreamAdapter.hpp"
+#include "vmime/utility/inputStreamStringAdapter.hpp"
 
 #include "vmime/net/defaultConnectionInfos.hpp"
 
@@ -673,6 +676,31 @@ void SMTPTransport::send
 }
 
 
+void SMTPTransport::send
+	(ref <vmime::message> msg, const mailbox& expeditor, const mailboxList& recipients,
+	 utility::progressListener* progress, const mailbox& sender)
+{
+	// Generate the message with Internationalized Email support,
+	// if this is supported by the SMTP server
+	const bool hasSMTPUTF8 =
+		m_extensions.find("SMTPUTF8") != m_extensions.end();
+
+	std::ostringstream oss;
+	utility::outputStreamAdapter ossAdapter(oss);
+
+	generationContext ctx(generationContext::getDefaultContext());
+	ctx.setInternationalizedEmailSupport(hasSMTPUTF8);
+
+	msg->generate(ctx, ossAdapter);
+
+	const string& str(oss.str());
+
+	utility::inputStreamStringAdapter isAdapter(str);
+
+	send(expeditor, recipients, isAdapter, str.length(), progress, sender);
+}
+
+
 void SMTPTransport::sendRequest(ref <SMTPCommand> cmd)
 {
 	cmd->writeToSocket(m_socket);
diff --git a/src/net/transport.cpp b/src/net/transport.cpp
index 923441b7..88ea6773 100644
--- a/src/net/transport.cpp
+++ b/src/net/transport.cpp
@@ -215,6 +215,14 @@ void transport::send(ref <vmime::message> msg, utility::progressListener* progre
 		vmime::ref <vmime::header> hdr;
 	} headerExchanger(msg, hdr);
 
+	send(msg, expeditor, recipients, progress, sender);
+}
+
+
+void transport::send
+	(ref <vmime::message> msg, const mailbox& expeditor, const mailboxList& recipients,
+	 utility::progressListener* progress, const mailbox& sender)
+{
 	// Generate the message, "stream" it and delegate the sending
 	// to the generic send() function.
 	std::ostringstream oss;
diff --git a/vmime/net/smtp/SMTPTransport.hpp b/vmime/net/smtp/SMTPTransport.hpp
index c914afd7..19b27bee 100644
--- a/vmime/net/smtp/SMTPTransport.hpp
+++ b/vmime/net/smtp/SMTPTransport.hpp
@@ -76,6 +76,13 @@ public:
 		 utility::progressListener* progress = NULL,
 		 const mailbox& sender = mailbox());
 
+	void send
+		(ref <vmime::message> msg,
+		 const mailbox& expeditor,
+		 const mailboxList& recipients,
+		 utility::progressListener* progress = NULL,
+		 const mailbox& sender = mailbox());
+
 	bool isSecuredConnection() const;
 	ref <connectionInfos> getConnectionInfos() const;
 
diff --git a/vmime/net/transport.hpp b/vmime/net/transport.hpp
index 5d599379..969d9df7 100644
--- a/vmime/net/transport.hpp
+++ b/vmime/net/transport.hpp
@@ -61,6 +61,8 @@ protected:
 public:
 
 	/** Send a message over this transport service.
+	  * The default implementation simply generates the whole message
+	  * into a string and "streams" it via a inputStreamStringAdapter.
 	  *
 	  * @param msg message to send
 	  * @param progress progress listener, or NULL if not used
@@ -84,6 +86,23 @@ public:
 		 utility::progressListener* progress = NULL,
 		 const mailbox& sender = mailbox()) = 0;
 
+	/** Send a message over this transport service.
+	  * The default implementation simply generates the whole message
+	  * into a string and "streams" it via a inputStreamStringAdapter.
+	  *
+	  * @param msg message to send
+	  * @param expeditor expeditor mailbox
+	  * @param recipients list of recipient mailboxes
+	  * @param progress progress listener, or NULL if not used
+	  * @param sender envelope sender (if empty, expeditor will be used)
+	  */
+	virtual void send
+		(ref <vmime::message> msg,
+		 const mailbox& expeditor,
+		 const mailboxList& recipients,
+		 utility::progressListener* progress = NULL,
+		 const mailbox& sender = mailbox());
+
 
 	Type getType() const;