[KNOWAGE-9198] Set email content type to "text/html" in MailDocumentDispatchChannel

Author: eng-dedalus

knowage-core/src/main/java/it/eng/spagobi/tools/scheduler/dispatcher/MailDocumentDispatchChannel.java

@@ -156,7 +156,7 @@ public boolean dispatch(BIObject document, byte[] executionOutput) {
 			messageMailDto.setNameSuffix(nameSuffix);
 			messageMailDto.setText(mailTxt + "\n" + descriptionSuffix);
 			messageMailDto.setFileExtension(fileExtension);
-			messageMailDto.setContentType(contentType);
+			messageMailDto.setContentType("text/html");
 
 			FactoryMailSender.getMailSender(SingletonConfig.getInstance().getConfigValue(IMailSender.MAIL_SENDER)).sendMail(messageMailDto);
 			logger.info("Mail sent for document with label " + document.getLabel());