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copied!<p>One possible solution: get the MX record on your own and use <a href="http://java.sun.com/products/javamail/" rel="noreferrer">JavaMail API</a>.</p> <p>You can get the MX record using the <a href="http://www.dnsjava.org/" rel="noreferrer">dnsjava</a> project:</p> <p>Maven2 dependency:</p> <pre><code><dependency> <groupId>dnsjava</groupId> <artifactId>dnsjava</artifactId> <version>2.0.1</version> </dependency> </code></pre> <p>Method for MX record retrieval:</p> <pre><code>public static String getMXRecordsForEmailAddress(String eMailAddress) { String returnValue = null; try { String hostName = getHostNameFromEmailAddress(eMailAddress); Record[] records = new Lookup(hostName, Type.MX).run(); if (records == null) { throw new RuntimeException("No MX records found for domain " + hostName + "."); } if (log.isTraceEnabled()) { // log found entries for debugging purposes for (int i = 0; i < records.length; i++) { MXRecord mx = (MXRecord) records[i]; String targetString = mx.getTarget().toString(); log.trace("MX-Record for '" + hostName + "':" + targetString); } } // return first entry (not the best solution) if (records.length > 0) { MXRecord mx = (MXRecord) records[0]; returnValue = mx.getTarget().toString(); } } catch (TextParseException e) { throw new RuntimeException(e); } if (log.isTraceEnabled()) { log.trace("Using: " + returnValue); } return returnValue; } private static String getHostNameFromEmailAddress(String mailAddress) throws TextParseException { String parts[] = mailAddress.split("@"); if (parts.length != 2) throw new TextParseException("Cannot parse E-Mail-Address: '" + mailAddress + "'"); return parts[1]; } </code></pre> <p>Sending mail via JavaMail code:</p> <pre><code>public static void sendMail(String toAddress, String fromAddress, String subject, String body) throws AddressException, MessagingException { String smtpServer = getMXRecordsForEmailAddress(toAddress); // create session Properties props = new Properties(); props.put("mail.smtp.host", smtpServer); Session session = Session.getDefaultInstance(props); // create message Message msg = new MimeMessage(session); msg.setFrom(new InternetAddress(fromAddress)); msg.setRecipient(Message.RecipientType.TO, new InternetAddress(toAddress)); msg.setSubject(subject); msg.setText(body); // send message Transport.send(msg); } </code></pre>

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