detect connectivity issue or login failure of ImapMailReceiver

Question

Using Spring integration with Spring mail to connect to IMAP inbox and read emails, I need to detect login failure and network connectivity issues, i cannot find any methods that would let me pull connection status, even errorChannel is not getting any messages nor the logs shows any network connectivity problems

 @Bean(name = "getImapMailReceiver")
    @Scope(scopeName = ConfigurableBeanFactory.SCOPE_PROTOTYPE)
    ImapMailReceiver getImapMailReceiver(Properties imapConnectionProperties) {
        ImapMailReceiver obj = new ImapMailReceiver(imapConnectionProperties.getProperty(IMAP_MAIL_URL_KEY));

        obj.setMaxFetchSize(Integer.parseInt(imapConnectionProperties.getProperty(IMAP_MAX_FETCH_SIZE_KEY)));
        obj.setJavaMailProperties(imapConnectionProperties);
        obj.setShouldDeleteMessages(false);
        obj.setAutoCloseFolder(false);
        obj.setShouldMarkMessagesAsRead(true);
        obj.setSimpleContent(false);
        obj.setCancelIdleInterval(10000);
        obj.setJavaMailAuthenticator(new Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(imapConnectionProperties.getProperty("mail.imap.user"),
                        imapConnectionProperties.getProperty("testpassword"));
            }
        });
        return obj;
    }

Answer 1

To catch exceptions from such an ImapIdleChannelAdapter async component, you need to add a even listener for the ImapIdleExceptionEvent.

See more info in docs: https://docs.spring.io/spring-integration/docs/current/reference/html/mail.html#imap-idle-and-lost-connections