List of usage examples for javax.mail Multipart getBodyPart
public synchronized BodyPart getBodyPart(int index) throws MessagingException
From source file:com.intranet.intr.inbox.EmpControllerInbox.java
private static correoNoLeidos analizaParteDeMensaje2(correoNoLeidos correo, List<String> arc, List<String> rar, Part unaParte) {//from w w w .j a va2 s.c om String r = null; try { System.out.println("CORREO NUM: "); // Si es multipart, se analiza cada una de sus partes recursivamente. if (unaParte.isMimeType("multipart/*")) { Multipart multi; multi = (Multipart) unaParte.getContent(); System.out.println("for MULTIPART"); for (int j = 0; j < multi.getCount(); j++) { System.out.println("Si es multi"); analizaParteDeMensaje2(correo, arc, rar, multi.getBodyPart(j)); } } else { // Si es texto, se escribe el texto. if (unaParte.isMimeType("text/*")) { System.out.println("Texto " + unaParte.getContentType()); System.out.println(unaParte.getContent()); System.out.println("---------------------------------"); correo.setContenido((String) unaParte.getContent()); } // Si es imagen, se guarda en fichero y se visualiza en JFrame if (unaParte.isMimeType("image/*")) { System.out.println("IMAGEN SYSTEM"); System.out.println("Imagen " + unaParte.getContentType()); System.out.println("Fichero=" + unaParte.getFileName()); System.out.println("---------------------------------"); arc.add("/Intranet/resources/archivosMail/verCorreo/" + salvaImagenEnFichero(unaParte)); //visualizaImagenEnJFrame(unaParte); } else { System.out.println("ELSE img"); // Si no es ninguna de las anteriores, se escribe en pantalla // el tipo. System.out.println("Recibido " + unaParte.getContentType()); System.out.println("---------------------------------"); if (salvaImagenEnFichero(unaParte) != null & salvaImagenEnFichero(unaParte) != "") { rar.add(salvaImagenEnFichero(unaParte)); } correo.setContenido((String) unaParte.getContent()); } } } catch (Exception e) { e.printStackTrace(); } correo.setImagenes(arc); correo.setRar(rar); return correo; }
From source file:com.cws.esolutions.core.utils.EmailUtils.java
/** * Processes and sends an email message as generated by the requesting * application. This method is utilized with a JNDI datasource. * * @param dataSource - The email message * @param authRequired - <code>true</code> if authentication is required, <code>false</code> otherwise * @param authList - If authRequired is true, this must be populated with the auth info * @return List - The list of email messages in the mailstore * @throws MessagingException {@link javax.mail.MessagingException} if an exception occurs during processing *//*from w w w .j a va 2 s .co m*/ public static final synchronized List<EmailMessage> readEmailMessages(final Properties dataSource, final boolean authRequired, final List<String> authList) throws MessagingException { final String methodName = EmailUtils.CNAME + "#readEmailMessages(final Properties dataSource, final boolean authRequired, final List<String> authList) throws MessagingException"; if (DEBUG) { DEBUGGER.debug(methodName); DEBUGGER.debug("dataSource: {}", dataSource); DEBUGGER.debug("authRequired: {}", authRequired); DEBUGGER.debug("authList: {}", authList); } Folder mailFolder = null; Session mailSession = null; Folder archiveFolder = null; List<EmailMessage> emailMessages = null; Calendar cal = Calendar.getInstance(); cal.add(Calendar.HOUR, -24); final Long TIME_PERIOD = cal.getTimeInMillis(); final URLName URL_NAME = (authRequired) ? new URLName(dataSource.getProperty("mailtype"), dataSource.getProperty("host"), Integer.parseInt(dataSource.getProperty("port")), null, authList.get(0), authList.get(1)) : new URLName(dataSource.getProperty("mailtype"), dataSource.getProperty("host"), Integer.parseInt(dataSource.getProperty("port")), null, null, null); if (DEBUG) { DEBUGGER.debug("timePeriod: {}", TIME_PERIOD); DEBUGGER.debug("URL_NAME: {}", URL_NAME); } try { // Set up mail session mailSession = (authRequired) ? Session.getDefaultInstance(dataSource, new SMTPAuthenticator()) : Session.getDefaultInstance(dataSource); if (DEBUG) { DEBUGGER.debug("mailSession: {}", mailSession); } if (mailSession == null) { throw new MessagingException("Unable to configure email services"); } mailSession.setDebug(DEBUG); Store mailStore = mailSession.getStore(URL_NAME); mailStore.connect(); if (DEBUG) { DEBUGGER.debug("mailStore: {}", mailStore); } if (!(mailStore.isConnected())) { throw new MessagingException("Failed to connect to mail service. Cannot continue."); } mailFolder = mailStore.getFolder("inbox"); archiveFolder = mailStore.getFolder("archive"); if (!(mailFolder.exists())) { throw new MessagingException("Requested folder does not exist. Cannot continue."); } mailFolder.open(Folder.READ_WRITE); if ((!(mailFolder.isOpen())) || (!(mailFolder.hasNewMessages()))) { throw new MessagingException("Failed to open requested folder. Cannot continue"); } if (!(archiveFolder.exists())) { archiveFolder.create(Folder.HOLDS_MESSAGES); } Message[] mailMessages = mailFolder.getMessages(); if (mailMessages.length == 0) { throw new MessagingException("No messages were found in the provided store."); } emailMessages = new ArrayList<EmailMessage>(); for (Message message : mailMessages) { if (DEBUG) { DEBUGGER.debug("MailMessage: {}", message); } // validate the message here String messageId = message.getHeader("Message-ID")[0]; Long messageDate = message.getReceivedDate().getTime(); if (DEBUG) { DEBUGGER.debug("messageId: {}", messageId); DEBUGGER.debug("messageDate: {}", messageDate); } // only get emails for the last 24 hours // this should prevent us from pulling too // many emails if (messageDate >= TIME_PERIOD) { // process it Multipart attachment = (Multipart) message.getContent(); Map<String, InputStream> attachmentList = new HashMap<String, InputStream>(); for (int x = 0; x < attachment.getCount(); x++) { BodyPart bodyPart = attachment.getBodyPart(x); if (!(Part.ATTACHMENT.equalsIgnoreCase(bodyPart.getDisposition()))) { continue; } attachmentList.put(bodyPart.getFileName(), bodyPart.getInputStream()); } List<String> toList = new ArrayList<String>(); List<String> ccList = new ArrayList<String>(); List<String> bccList = new ArrayList<String>(); List<String> fromList = new ArrayList<String>(); for (Address from : message.getFrom()) { fromList.add(from.toString()); } if ((message.getRecipients(RecipientType.TO) != null) && (message.getRecipients(RecipientType.TO).length != 0)) { for (Address to : message.getRecipients(RecipientType.TO)) { toList.add(to.toString()); } } if ((message.getRecipients(RecipientType.CC) != null) && (message.getRecipients(RecipientType.CC).length != 0)) { for (Address cc : message.getRecipients(RecipientType.CC)) { ccList.add(cc.toString()); } } if ((message.getRecipients(RecipientType.BCC) != null) && (message.getRecipients(RecipientType.BCC).length != 0)) { for (Address bcc : message.getRecipients(RecipientType.BCC)) { bccList.add(bcc.toString()); } } EmailMessage emailMessage = new EmailMessage(); emailMessage.setMessageTo(toList); emailMessage.setMessageCC(ccList); emailMessage.setMessageBCC(bccList); emailMessage.setEmailAddr(fromList); emailMessage.setMessageAttachments(attachmentList); emailMessage.setMessageDate(message.getSentDate()); emailMessage.setMessageSubject(message.getSubject()); emailMessage.setMessageBody(message.getContent().toString()); emailMessage.setMessageSources(message.getHeader("Received")); if (DEBUG) { DEBUGGER.debug("emailMessage: {}", emailMessage); } emailMessages.add(emailMessage); if (DEBUG) { DEBUGGER.debug("emailMessages: {}", emailMessages); } } // archive it archiveFolder.open(Folder.READ_WRITE); if (archiveFolder.isOpen()) { mailFolder.copyMessages(new Message[] { message }, archiveFolder); message.setFlag(Flags.Flag.DELETED, true); } } } catch (IOException iox) { throw new MessagingException(iox.getMessage(), iox); } catch (MessagingException mex) { throw new MessagingException(mex.getMessage(), mex); } finally { try { if ((mailFolder != null) && (mailFolder.isOpen())) { mailFolder.close(true); } if ((archiveFolder != null) && (archiveFolder.isOpen())) { archiveFolder.close(false); } } catch (MessagingException mx) { ERROR_RECORDER.error(mx.getMessage(), mx); } } return emailMessages; }
From source file:de.saly.elasticsearch.support.IndexableMailMessage.java
private static String getText(final Part p, int depth) throws MessagingException, IOException { if (depth >= 100) { throw new IOException("Endless recursion detected "); }//from w w w .j av a 2 s . c o m // TODO fix encoding for buggy encoding headers if (p.isMimeType("text/*")) { Object content = null; try { content = p.getContent(); } catch (final Exception e) { logger.error("Unable to index the content of a message due to {}", e.toString()); return null; } if (content instanceof String) { final String s = (String) p.getContent(); return s; } if (content instanceof InputStream) { final InputStream in = (InputStream) content; // TODO guess encoding with // http://code.google.com/p/juniversalchardet/ final String s = IOUtils.toString(in, "UTF-8"); IOUtils.closeQuietly(in); return s; } throw new MessagingException("Unknown content class representation: " + content.getClass()); } if (p.isMimeType("multipart/alternative")) { // prefer plain text over html text final Multipart mp = (Multipart) p.getContent(); String text = null; for (int i = 0; i < mp.getCount(); i++) { final Part bp = mp.getBodyPart(i); if (bp.isMimeType("text/html")) { if (text == null) { text = getText(bp, ++depth); } continue; } else if (bp.isMimeType("text/plain")) { final String s = getText(bp, ++depth); if (s != null) { return s; } } else { return getText(bp, ++depth); } } return text; } else if (p.isMimeType("multipart/*")) { final Multipart mp = (Multipart) p.getContent(); for (int i = 0; i < mp.getCount(); i++) { final String s = getText(mp.getBodyPart(i), ++depth); if (s != null) { return s; } } } return null; }
From source file:de.saly.elasticsearch.importer.imap.support.IndexableMailMessage.java
private static String getText(final Part p, int depth, final boolean preferHtmlContent) throws MessagingException, IOException { if (depth >= 100) { throw new IOException("Endless recursion detected "); }/* w w w .jav a2 s. c o m*/ // TODO fix encoding for buggy encoding headers if (p.isMimeType("text/*")) { Object content = null; try { content = p.getContent(); } catch (final Exception e) { logger.error("Unable to index the content of a message due to {}", e.toString()); return null; } if (content instanceof String) { final String s = (String) p.getContent(); return s; } if (content instanceof InputStream) { final InputStream in = (InputStream) content; // TODO guess encoding with // http://code.google.com/p/juniversalchardet/ final String s = IOUtils.toString(in, "UTF-8"); IOUtils.closeQuietly(in); return s; } throw new MessagingException("Unknown content class representation: " + content.getClass()); } if (p.isMimeType("multipart/alternative")) { // prefer plain text over html text final Multipart mp = (Multipart) p.getContent(); String text = null; for (int i = 0; i < mp.getCount(); i++) { final Part bp = mp.getBodyPart(i); if (bp.isMimeType("text/html")) { if (text == null) { text = getText(bp, ++depth, preferHtmlContent); } if (preferHtmlContent) { return text; } else { continue; } } else if (bp.isMimeType("text/plain")) { final String s = getText(bp, ++depth, preferHtmlContent); if (s != null && !preferHtmlContent) { return s; } else { continue; } } else { return getText(bp, ++depth, preferHtmlContent); } } return text; } else if (p.isMimeType("multipart/*")) { final Multipart mp = (Multipart) p.getContent(); for (int i = 0; i < mp.getCount(); i++) { final String s = getText(mp.getBodyPart(i), ++depth, preferHtmlContent); if (s != null) { return s; } } } return null; }
From source file:de.saly.elasticsearch.support.IndexableMailMessage.java
public static IndexableMailMessage fromJavaMailMessage(final Message jmm, final boolean withTextContent, final boolean withAttachments, final boolean stripTags, List<String> headersToFields) throws MessagingException, IOException { final IndexableMailMessage im = new IndexableMailMessage(); @SuppressWarnings("unchecked") final Enumeration<Header> allHeaders = jmm.getAllHeaders(); final Set<IndexableHeader> headerList = new HashSet<IndexableHeader>(); while (allHeaders.hasMoreElements()) { final Header h = allHeaders.nextElement(); headerList.add(new IndexableHeader(h.getName(), h.getValue())); }/*w w w. j a v a2 s . c o m*/ im.setHeaders(headerList.toArray(new IndexableHeader[headerList.size()])); im.setSelectedHeaders(extractHeaders(im.getHeaders(), headersToFields)); if (jmm.getFolder() instanceof POP3Folder) { im.setPopId(((POP3Folder) jmm.getFolder()).getUID(jmm)); im.setMailboxType("POP"); } else { im.setMailboxType("IMAP"); } if (jmm.getFolder() instanceof UIDFolder) { im.setUid(((UIDFolder) jmm.getFolder()).getUID(jmm)); } im.setFolderFullName(jmm.getFolder().getFullName()); im.setFolderUri(jmm.getFolder().getURLName().toString()); im.setContentType(jmm.getContentType()); im.setSubject(jmm.getSubject()); im.setSize(jmm.getSize()); im.setSentDate(jmm.getSentDate()); if (jmm.getReceivedDate() != null) { im.setReceivedDate(jmm.getReceivedDate()); } if (jmm.getFrom() != null && jmm.getFrom().length > 0) { im.setFrom(Address.fromJavaMailAddress(jmm.getFrom()[0])); } if (jmm.getRecipients(RecipientType.TO) != null) { im.setTo(Address.fromJavaMailAddress(jmm.getRecipients(RecipientType.TO))); } if (jmm.getRecipients(RecipientType.CC) != null) { im.setCc(Address.fromJavaMailAddress(jmm.getRecipients(RecipientType.CC))); } if (jmm.getRecipients(RecipientType.BCC) != null) { im.setBcc(Address.fromJavaMailAddress(jmm.getRecipients(RecipientType.BCC))); } if (withTextContent) { // try { String textContent = getText(jmm, 0); if (stripTags) { textContent = stripTags(textContent); } im.setTextContent(textContent); // } catch (final Exception e) { // logger.error("Unable to retrieve text content for message {} due to {}", // e, ((MimeMessage) jmm).getMessageID(), e); // } } if (withAttachments) { try { final Object content = jmm.getContent(); // look for attachments if (jmm.isMimeType("multipart/*") && content instanceof Multipart) { List<ESAttachment> attachments = new ArrayList<ESAttachment>(); final Multipart multipart = (Multipart) content; for (int i = 0; i < multipart.getCount(); i++) { final BodyPart bodyPart = multipart.getBodyPart(i); if (!Part.ATTACHMENT.equalsIgnoreCase(bodyPart.getDisposition()) && !StringUtils.isNotBlank(bodyPart.getFileName())) { continue; // dealing with attachments only } final InputStream is = bodyPart.getInputStream(); final byte[] bytes = IOUtils.toByteArray(is); IOUtils.closeQuietly(is); attachments.add(new ESAttachment(bodyPart.getContentType(), bytes, bodyPart.getFileName())); } if (!attachments.isEmpty()) { im.setAttachments(attachments.toArray(new ESAttachment[attachments.size()])); im.setAttachmentCount(im.getAttachments().length); attachments.clear(); attachments = null; } } } catch (final Exception e) { logger.error( "Error indexing attachments (message will be indexed but without attachments) due to {}", e, e.toString()); } } im.setFlags(IMAPUtils.toStringArray(jmm.getFlags())); im.setFlaghashcode(jmm.getFlags().hashCode()); return im; }
From source file:de.saly.elasticsearch.importer.imap.support.IndexableMailMessage.java
public static IndexableMailMessage fromJavaMailMessage(final Message jmm, final boolean withTextContent, final boolean withHtmlContent, final boolean preferHtmlContent, final boolean withAttachments, final boolean stripTags, List<String> headersToFields) throws MessagingException, IOException { final IndexableMailMessage im = new IndexableMailMessage(); @SuppressWarnings("unchecked") final Enumeration<Header> allHeaders = jmm.getAllHeaders(); final Set<IndexableHeader> headerList = new HashSet<IndexableHeader>(); while (allHeaders.hasMoreElements()) { final Header h = allHeaders.nextElement(); headerList.add(new IndexableHeader(h.getName(), h.getValue())); }/*from w w w .j av a 2 s . c om*/ im.setHeaders(headerList.toArray(new IndexableHeader[headerList.size()])); im.setSelectedHeaders(extractHeaders(im.getHeaders(), headersToFields)); if (jmm.getFolder() instanceof POP3Folder) { im.setPopId(((POP3Folder) jmm.getFolder()).getUID(jmm)); im.setMailboxType("POP"); } else { im.setMailboxType("IMAP"); } if (jmm.getFolder() instanceof UIDFolder) { im.setUid(((UIDFolder) jmm.getFolder()).getUID(jmm)); } im.setFolderFullName(jmm.getFolder().getFullName()); im.setFolderUri(jmm.getFolder().getURLName().toString()); im.setContentType(jmm.getContentType()); im.setSubject(jmm.getSubject()); im.setSize(jmm.getSize()); im.setSentDate(jmm.getSentDate()); if (jmm.getReceivedDate() != null) { im.setReceivedDate(jmm.getReceivedDate()); } if (jmm.getFrom() != null && jmm.getFrom().length > 0) { im.setFrom(Address.fromJavaMailAddress(jmm.getFrom()[0])); } if (jmm.getRecipients(RecipientType.TO) != null) { im.setTo(Address.fromJavaMailAddress(jmm.getRecipients(RecipientType.TO))); } if (jmm.getRecipients(RecipientType.CC) != null) { im.setCc(Address.fromJavaMailAddress(jmm.getRecipients(RecipientType.CC))); } if (jmm.getRecipients(RecipientType.BCC) != null) { im.setBcc(Address.fromJavaMailAddress(jmm.getRecipients(RecipientType.BCC))); } if (withTextContent) { // try { String textContent = getText(jmm, 0, preferHtmlContent); if (stripTags) { textContent = stripTags(textContent); } im.setTextContent(textContent); // } catch (final Exception e) { // logger.error("Unable to retrieve text content for message {} due to {}", // e, ((MimeMessage) jmm).getMessageID(), e); // } } if (withHtmlContent) { // try { String htmlContent = getText(jmm, 0, true); im.setHtmlContent(htmlContent); // } catch (final Exception e) { // logger.error("Unable to retrieve text content for message {} due to {}", // e, ((MimeMessage) jmm).getMessageID(), e); // } } if (withAttachments) { try { final Object content = jmm.getContent(); // look for attachments if (jmm.isMimeType("multipart/*") && content instanceof Multipart) { List<ESAttachment> attachments = new ArrayList<ESAttachment>(); final Multipart multipart = (Multipart) content; for (int i = 0; i < multipart.getCount(); i++) { final BodyPart bodyPart = multipart.getBodyPart(i); if (!Part.ATTACHMENT.equalsIgnoreCase(bodyPart.getDisposition()) && !StringUtils.isNotBlank(bodyPart.getFileName())) { continue; // dealing with attachments only } final InputStream is = bodyPart.getInputStream(); final byte[] bytes = IOUtils.toByteArray(is); IOUtils.closeQuietly(is); attachments.add(new ESAttachment(bodyPart.getContentType(), bytes, bodyPart.getFileName())); } if (!attachments.isEmpty()) { im.setAttachments(attachments.toArray(new ESAttachment[attachments.size()])); im.setAttachmentCount(im.getAttachments().length); attachments.clear(); attachments = null; } } } catch (final Exception e) { logger.error( "Error indexing attachments (message will be indexed but without attachments) due to {}", e, e.toString()); } } im.setFlags(IMAPUtils.toStringArray(jmm.getFlags())); im.setFlaghashcode(jmm.getFlags().hashCode()); return im; }
From source file:com.angstoverseer.service.mail.MailServiceImpl.java
@Override public void handleIncomingEmail(InputStream inputStream) { Properties props = new Properties(); Session session = Session.getDefaultInstance(props, null); try {/* www . ja v a 2 s .c o m*/ MimeMessage mimeMessage = new MimeMessage(session, inputStream); Object messageContent = mimeMessage.getContent(); String message; if (messageContent instanceof Multipart) { Multipart mp = (Multipart) messageContent; BodyPart bodyPart = mp.getBodyPart(0); InputStream is = bodyPart.getInputStream(); message = convertStreamToString(is); } else { message = (String) messageContent; } Address sender = mimeMessage.getFrom()[0]; final String commandOutput = commandService.process(message, extractEmail(sender.toString())); sendResponseMail(sender, commandOutput, mimeMessage.getSubject()); } catch (Exception e) { throw new RuntimeException(e); } }
From source file:org.apache.james.transport.mailets.ICSSanitizerTest.java
@Test void serviceShouldEnhanceTextCalendarOnlyHeaders() throws Exception { FakeMail mail = FakeMail.builder().mimeMessage(MimeMessageUtil .mimeMessageFromStream(ClassLoaderUtils.getSystemResourceAsSharedStream("ics_in_header.eml"))) .build();/* w ww. jav a 2 s . co m*/ testee.service(mail); Object content = mail.getMessage().getContent(); assertThat(content).isInstanceOf(Multipart.class); Multipart multipart = (Multipart) content; assertThat(multipart.getCount()).isEqualTo(1); assertThat(multipart.getBodyPart(0).getContent()).isEqualTo("BEGIN: VCALENDAR\r\n" + "PRODID: -//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN\r\n" + "VERSION: 2.0\r\n" + "METHOD: REPLY\r\n" + "BEGIN: VEVENT\r\n" + "CREATED: 20180911T144134Z\r\n" + "LAST-MODIFIED: 20180912T085818Z\r\n" + "DTSTAMP: 20180912T085818Z\r\n" + "UID: f1514f44bf39311568d64072945fc3b2973debebb0d550e8c841f3f0604b2481e047fe\r\n" + " b2aab16e43439a608f28671ab7c10e754cbbe63441a01ba232a553df751eb0931728d67672\r\n" + " \r\n" + "SUMMARY: Point Produit\r\n" + "PRIORITY: 5\r\n" + "ORGANIZER;CN=Bob;X-OBM-ID=348: mailto:bob@linagora.com\r\n" + "ATTENDEE;CN=Alice;PARTSTAT=ACCEPTED;CUTYPE=INDIVIDUAL;X-OBM-ID=810: mailto:alice@linagora.com\r\n" + "DTSTART: 20180919T123000Z\r\n" + "DURATION: PT1H\r\n" + "TRANSP: OPAQUE\r\n" + "SEQUENCE: 0\r\n" + "X-LIC-ERROR;X-LIC-ERRORTYPE=VALUE-PARSE-ERROR: No value for X property. Rem\r\n" + " oving entire property:\r\n" + "CLASS: PUBLIC\r\n" + "X-OBM-DOMAIN: linagora.com\r\n" + "X-OBM-DOMAIN-UUID: 02874f7c-d10e-102f-acda-0015176f7922\r\n" + "LOCATION: T\u0083l\u0083phone\r\n" + "END: VEVENT\r\n" + "END: VCALENDAR\r\n" + "Content-class: urn:content-classes:calendarmessage\r\n" + "Content-type: text/calendar; method=REPLY; charset=UTF-8\r\n" + "Content-transfer-encoding: 8BIT\r\n" + "Content-Disposition: attachment"); assertThat(multipart.getBodyPart(0).getContentType()) .startsWith("text/calendar; method=REPLY; charset=UTF-8"); }
From source file:org.apereo.portal.portlets.account.EmailPasswordResetNotificationImplTest.java
private String getBodyHtml(Multipart msg) throws Exception { for (int i = 0; i < msg.getCount(); i++) { BodyPart part = msg.getBodyPart(i); String type = part.getContentType(); if ("text/plain".equals(type) || "text/html".equals(type)) { DataHandler handler = part.getDataHandler(); String val = IOUtils.toString(handler.getInputStream()); return val; }/*from w w w. j a v a2 s . com*/ } return null; }
From source file:org.apache.james.transport.mailets.ICSSanitizerTest.java
@Test void validTextCalendarShouldNotBeSanitized() throws Exception { FakeMail mail = FakeMail.builder()/*from ww w . j a v a 2 s .c o m*/ .mimeMessage(MimeMessageBuilder.mimeMessageBuilder() .setMultipartWithBodyParts(MimeMessageBuilder.bodyPartBuilder().type("text/calendar") .data("Not empty").addHeader("X-CUSTOM", "Because it is a valid ICS it should not be pushed in body"))) .build(); testee.service(mail); Object content = mail.getMessage().getContent(); assertThat(content).isInstanceOf(Multipart.class); Multipart multipart = (Multipart) content; assertThat(multipart.getCount()).isEqualTo(1); SharedByteArrayInputStream inputStream = (SharedByteArrayInputStream) multipart.getBodyPart(0).getContent(); assertThat(IOUtils.toString(inputStream, StandardCharsets.UTF_8)).doesNotContain("X-CUSTOM"); }