Information
  • Author: Appian Corporation
  • Type: Plug-in (Function & Smart Service)
  • Support: This is an Appian supported plug-in. To the extent that this plug-in does not conform to its documentation, please submit a ticket to Appian Technical Support. Appian does not support customer-created customizations or outdated versions of the plug-in.
  • Industry: All Industries
  • Compatible Version(s): 25.2
  • First Released:
  • Last Updated:
  • Cost: Free - Appian Supported
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Home » AppMarket » MSGraph Email Poller

MSGraph Email Poller

Overview

Need to poll emails from your Exchange server? This smart service can be used in a poller process and extract the data from the Microsoft Exchange server. Messages are stored in the Appian Document System, as well as the attachments. Meta data is stored in a database table for further processing.

This plug-in provides an alternative to sending emails to an Appian process model when inbound email integration is requested. Instead of the email being forwarded to Appian, this plug-in reads the emails directly from the Exchange mailbox using the MS Graph API as described below:

  • Reads the mailbox(including digitally signed emails) using the MS Graph API
  • Convert the email to an EML file stored as an Appian document, with attachments removed from it
  • Store all email attachments as separate Appian documents
  • Store all email metadata (subject, author, recipients, etc...) into a set of tables in the database

Key Features & Functionality

  • All information how to deploy, configure and use the smart service is in the 'MS Graph Mail Poller.pdf' document in the downloaded zip.
  • Extract the files in the ZIP and follow the instructions in the document.

Anonymous
Parents

  • Hi, I'm trying to configure the pulgin and I have followed the steps in the documentation also added the log4j to debug and I'm getting below error:

    2021-08-09 18:35:18,140 [Appian Work Item - 493 - execution02 : UnattendedJavaActivityRequest] DEBUG com.appiancorp.ps.msgraphmail.MSGraphMailPollerSmartService - Connecting to MS Graph authentication provider
    2021-08-09 18:35:18,146 [Appian Work Item - 493 - execution02 : UnattendedJavaActivityRequest] ERROR com.appiancorp.ps.msgraphmail.MSGraphMailPollerSmartService - Unexpected error polling for mail
    java.util.concurrent.ExecutionException: java.lang.NullPointerException
    at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
    at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1908)
    at com.appiancorp.ps.msgraphmail.MSGraphConnector.<init>(MSGraphConnector.java:75)
    at com.appiancorp.ps.msgraphmail.MSGraphMailPollerSmartService.run(MSGraphMailPollerSmartService.java:171)
    at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.lambda$call$0(DefaultActivityExecutor.java:131)
    at com.appiancorp.plugins.PluginUsageLogger.runWithPluginInformation(PluginUsageLogger.java:52)
    at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:131)
    at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:125)
    at com.appiancorp.common.ContextClassLoaderSwitcher.runInContext(ContextClassLoaderSwitcher.java:25)
    at com.appiancorp.process.runtime.framework.DefaultActivityExecutor.execute(DefaultActivityExecutor.java:125)
    at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute(UnattendedJavaActivityRequest.java:88)
    at com.appiancorp.process.engine.UnattendedJavaActivityRequestResponseCreator.getJavaActivityResultResponse(UnattendedJavaActivityRequestResponseCreator.java:21)
    at com.appiancorp.process.engine.UnattendedJavaActivityRequest.getJavaActivityResultResponse(UnattendedJavaActivityRequest.java:67)
    at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute0(UnattendedJavaActivityRequest.java:55)
    at com.appiancorp.process.engine.ContinuationRequest.executeOuter(ContinuationRequest.java:73)
    at com.appiancorp.process.engine.ContinuationRequest.execute(ContinuationRequest.java:102)
    at com.appiancorp.process.workpoller.UnattendedRequestHandlerBean.onMessage(UnattendedRequestHandlerBean.java:36)
    at com.appiancorp.process.workpoller.WorkItem.run(WorkItem.java:93)
    at org.springframework.jca.work.SimpleTaskWorkManager$DelegatingWorkAdapter.run(SimpleTaskWorkManager.java:239)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
    Caused by: java.lang.NullPointerException
    at com.microsoft.aad.msal4j.AuthenticationResultSupplier.logException(AuthenticationResultSupplier.java:139)
    at com.microsoft.aad.msal4j.AuthenticationResultSupplier.get(AuthenticationResultSupplier.java:88)
    at com.microsoft.aad.msal4j.AuthenticationResultSupplier.get(AuthenticationResultSupplier.java:17)
    at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1604)
    at java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1596)
    at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
    at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
    at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
    at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175)

    Has someone got this same error, that could help to troubleshoot?

Comment

  • Hi, I'm trying to configure the pulgin and I have followed the steps in the documentation also added the log4j to debug and I'm getting below error:

    2021-08-09 18:35:18,140 [Appian Work Item - 493 - execution02 : UnattendedJavaActivityRequest] DEBUG com.appiancorp.ps.msgraphmail.MSGraphMailPollerSmartService - Connecting to MS Graph authentication provider
    2021-08-09 18:35:18,146 [Appian Work Item - 493 - execution02 : UnattendedJavaActivityRequest] ERROR com.appiancorp.ps.msgraphmail.MSGraphMailPollerSmartService - Unexpected error polling for mail
    java.util.concurrent.ExecutionException: java.lang.NullPointerException
    at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
    at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1908)
    at com.appiancorp.ps.msgraphmail.MSGraphConnector.<init>(MSGraphConnector.java:75)
    at com.appiancorp.ps.msgraphmail.MSGraphMailPollerSmartService.run(MSGraphMailPollerSmartService.java:171)
    at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.lambda$call$0(DefaultActivityExecutor.java:131)
    at com.appiancorp.plugins.PluginUsageLogger.runWithPluginInformation(PluginUsageLogger.java:52)
    at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:131)
    at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:125)
    at com.appiancorp.common.ContextClassLoaderSwitcher.runInContext(ContextClassLoaderSwitcher.java:25)
    at com.appiancorp.process.runtime.framework.DefaultActivityExecutor.execute(DefaultActivityExecutor.java:125)
    at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute(UnattendedJavaActivityRequest.java:88)
    at com.appiancorp.process.engine.UnattendedJavaActivityRequestResponseCreator.getJavaActivityResultResponse(UnattendedJavaActivityRequestResponseCreator.java:21)
    at com.appiancorp.process.engine.UnattendedJavaActivityRequest.getJavaActivityResultResponse(UnattendedJavaActivityRequest.java:67)
    at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute0(UnattendedJavaActivityRequest.java:55)
    at com.appiancorp.process.engine.ContinuationRequest.executeOuter(ContinuationRequest.java:73)
    at com.appiancorp.process.engine.ContinuationRequest.execute(ContinuationRequest.java:102)
    at com.appiancorp.process.workpoller.UnattendedRequestHandlerBean.onMessage(UnattendedRequestHandlerBean.java:36)
    at com.appiancorp.process.workpoller.WorkItem.run(WorkItem.java:93)
    at org.springframework.jca.work.SimpleTaskWorkManager$DelegatingWorkAdapter.run(SimpleTaskWorkManager.java:239)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
    Caused by: java.lang.NullPointerException
    at com.microsoft.aad.msal4j.AuthenticationResultSupplier.logException(AuthenticationResultSupplier.java:139)
    at com.microsoft.aad.msal4j.AuthenticationResultSupplier.get(AuthenticationResultSupplier.java:88)
    at com.microsoft.aad.msal4j.AuthenticationResultSupplier.get(AuthenticationResultSupplier.java:17)
    at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1604)
    at java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1596)
    at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
    at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
    at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
    at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175)

    Has someone got this same error, that could help to troubleshoot?

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