try { EasySMTPConnection smtp = new EasySMTPConnection("127.0.0.1"); Message msg = new Message(); msg.setTo(""); String[] source = { "From: Test User <test.user@foo.bar>", "To: Somebody <somebodysaddress@somebodysserver.com>", "Subject: Test", "Date: fillinyourdate", "Content-Type: text/plain; charset=iso-8859-1", "Message-ID: <" + new Date().getTime() + "." + EasySMTPConnection.class.hashCode() + "@>", "", "first line,", "second line", "as you can see, no need for newlines (\\n)", "" }; msg = new Message(source); smtp.sendMessage(msg); } catch(MailProtocolException e) { e.printStackTrace(); } catch(InstantiationException e) { e.printStackTrace(); }