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 Appian does not support customer-created customizations or outdated versions of the plug-in.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, we have an issue when mail poller is trying to download an email with reasnably large (18Mb) attachments from Exchange folder - after a short time, the email gets moved to Expection folder without being processed. In the logs I can see the following error:

    2024-04-12 11:33:23 WARNING [OkHttp ConnectionPool] okhttp3.internal.platform.Platform.log A connection to https://graph.microsoft.com/ was leaked. Did you forget to close a response body? To see where this was allocated, set the OkHttpClient logger level to FINE: Logger.getLogger(OkHttpClient.class.getName()).setLevel(Level.FINE);

    and then shortly after: 
    execution02 - process 28513890 - model 2849 : UnattendedJavaActivityRequest] ERROR com.appiancs.msgraphmail.MSGraphMailPoller - Error during email processing, exiting all
com.microsoft.graph.core.ClientException: Error during http request
	at com.microsoft.graph.http.CoreHttpProvider.processResponse(CoreHttpProvider.java:494)
	at com.microsoft.graph.http.CoreHttpProvider.sendRequestInternal(CoreHttpProvider.java:408)
	at com.microsoft.graph.http.CoreHttpProvider.send(CoreHttpProvider.java:225)
	at com.microsoft.graph.http.CoreHttpProvider.send(CoreHttpProvider.java:202)
	at com.microsoft.graph.http.BaseRequest.send(BaseRequest.java:335)
	at com.microsoft.graph.requests.MessageMoveRequest.post(MessageMoveRequest.java:54)
	at com.appiancs.msgraphmail.MSGraphMessageHandler.processProxied(MSGraphMessageHandler.java:252)
	at com.appiancs.msgraphmail.MSGraphMailPoller.processInboxItems(MSGraphMailPoller.java:168)
	at com.appiancs.msgraphmail.MSGraphMailPoller.pollForMail(MSGraphMailPoller.java:45)
	at com.appiancs.msgraphmail.MSGraphMailPollerSmartService.run(MSGraphMailPollerSmartService.java:212)
	at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.lambda$call$0(DefaultActivityExecutor.java:136)
	at com.appiancorp.plugins.PluginUsageLogger.runWithPluginInformation(PluginUsageLogger.java:54)
	at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:136)
	at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:130)
	at com.appiancorp.common.ContextClassLoaderSwitcher.runInContext(ContextClassLoaderSwitcher.java:28)
	at com.appiancorp.process.runtime.framework.DefaultActivityExecutor.execute(DefaultActivityExecutor.java:130)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute(UnattendedJavaActivityRequest.java:88)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequestResponseCreator.getJavaActivityResultResponse(UnattendedJavaActivityRequestResponseCreator.java:22)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequest.getJavaActivityResultResponse(UnattendedJavaActivityRequest.java:67)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute0(UnattendedJavaActivityRequest.java:55)
	at com.appiancorp.common.persistence.data.AppianDataUserContextProvider.executeWithConsistentDataReads(AppianDataUserContextProvider.java:143)
	at com.appiancorp.process.engine.ProcessContinuationRequest.executeOuter(ProcessContinuationRequest.java:68)
	at com.appiancorp.process.engine.ContinuationRequest.execute(ContinuationRequest.java:129)
	at com.appiancorp.process.workpoller.UnattendedRequestHandlerBean.onMessage(UnattendedRequestHandlerBean.java:36)
	at com.appiancorp.process.workpoller.WorkItem.run(WorkItem.java:110)
	at org.springframework.jca.work.SimpleTaskWorkManager$DelegatingWorkAdapter.run(SimpleTaskWorkManager.java:241)
	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:750)
Caused by: com.google.gson.JsonSyntaxException: java.net.SocketTimeoutException: timeout

    Can you please checked that?
Comment

  • Hi, we have an issue when mail poller is trying to download an email with reasnably large (18Mb) attachments from Exchange folder - after a short time, the email gets moved to Expection folder without being processed. In the logs I can see the following error:

    2024-04-12 11:33:23 WARNING [OkHttp ConnectionPool] okhttp3.internal.platform.Platform.log A connection to https://graph.microsoft.com/ was leaked. Did you forget to close a response body? To see where this was allocated, set the OkHttpClient logger level to FINE: Logger.getLogger(OkHttpClient.class.getName()).setLevel(Level.FINE);

    and then shortly after: 
    execution02 - process 28513890 - model 2849 : UnattendedJavaActivityRequest] ERROR com.appiancs.msgraphmail.MSGraphMailPoller - Error during email processing, exiting all
com.microsoft.graph.core.ClientException: Error during http request
	at com.microsoft.graph.http.CoreHttpProvider.processResponse(CoreHttpProvider.java:494)
	at com.microsoft.graph.http.CoreHttpProvider.sendRequestInternal(CoreHttpProvider.java:408)
	at com.microsoft.graph.http.CoreHttpProvider.send(CoreHttpProvider.java:225)
	at com.microsoft.graph.http.CoreHttpProvider.send(CoreHttpProvider.java:202)
	at com.microsoft.graph.http.BaseRequest.send(BaseRequest.java:335)
	at com.microsoft.graph.requests.MessageMoveRequest.post(MessageMoveRequest.java:54)
	at com.appiancs.msgraphmail.MSGraphMessageHandler.processProxied(MSGraphMessageHandler.java:252)
	at com.appiancs.msgraphmail.MSGraphMailPoller.processInboxItems(MSGraphMailPoller.java:168)
	at com.appiancs.msgraphmail.MSGraphMailPoller.pollForMail(MSGraphMailPoller.java:45)
	at com.appiancs.msgraphmail.MSGraphMailPollerSmartService.run(MSGraphMailPollerSmartService.java:212)
	at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.lambda$call$0(DefaultActivityExecutor.java:136)
	at com.appiancorp.plugins.PluginUsageLogger.runWithPluginInformation(PluginUsageLogger.java:54)
	at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:136)
	at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:130)
	at com.appiancorp.common.ContextClassLoaderSwitcher.runInContext(ContextClassLoaderSwitcher.java:28)
	at com.appiancorp.process.runtime.framework.DefaultActivityExecutor.execute(DefaultActivityExecutor.java:130)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute(UnattendedJavaActivityRequest.java:88)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequestResponseCreator.getJavaActivityResultResponse(UnattendedJavaActivityRequestResponseCreator.java:22)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequest.getJavaActivityResultResponse(UnattendedJavaActivityRequest.java:67)
	at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute0(UnattendedJavaActivityRequest.java:55)
	at com.appiancorp.common.persistence.data.AppianDataUserContextProvider.executeWithConsistentDataReads(AppianDataUserContextProvider.java:143)
	at com.appiancorp.process.engine.ProcessContinuationRequest.executeOuter(ProcessContinuationRequest.java:68)
	at com.appiancorp.process.engine.ContinuationRequest.execute(ContinuationRequest.java:129)
	at com.appiancorp.process.workpoller.UnattendedRequestHandlerBean.onMessage(UnattendedRequestHandlerBean.java:36)
	at com.appiancorp.process.workpoller.WorkItem.run(WorkItem.java:110)
	at org.springframework.jca.work.SimpleTaskWorkManager$DelegatingWorkAdapter.run(SimpleTaskWorkManager.java:241)
	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:750)
Caused by: com.google.gson.JsonSyntaxException: java.net.SocketTimeoutException: timeout

    Can you please checked that?
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