MSGraph Mail Poller

RE: MSGraph Mail Poller

syncop8shun — Thu, 30 Apr 2026 18:25:53 GMT

Thanks Mike for the suggestions. I checked the log. It contains the following:

ERROR com.appiancs.msgraphmail.MSGraphDBHandler - Error writing mail to database
java.sql.SQLSyntaxErrorException: (conn=58270) Unknown column 'CONVERSATION_ID' in 'INSERT INTO'

My table did not contain that field.  
I looked at the unzipped file and saw that there is a Version 4.3.0 Add-on Database Scripts folder that I previously ignored.
I did not see anything in the Deployment instructions about the new columns, plus we skipped a few versions. 
I ran the sql in that folder and re-ran the process without any errors.

RE: MSGraph Mail Poller

SHKEXL288968 — Thu, 30 Apr 2026 15:18:52 GMT

I am getting the error message, I was working before, can anyone help me here.

ErrorMessage - Error executing the request

RE: MSGraph Mail Poller

syncop8shun — Wed, 29 Apr 2026 15:16:00 GMT

Hello. We just upgraded the plugin to v4.4.0 and we also upgraded to Appian 25.4. When running the poller, it cannot write to the database. I did not update the node in the process. It still points to jdbc/Appian just as it did before the latest version. Any ideas?

RE: MSGraph Mail Poller

Appian AppMarket — Mon, 20 Apr 2026 22:00:00 GMT

v4.4.0 Release Notes

Now supporting simultaneous polling for up to five distinct mailboxes.

RE: MSGraph Mail Poller

Nuno Curral — Wed, 15 Apr 2026 08:17:16 GMT

Empty Document Names for Email Attachments Without Subject

Problem Description:

When processing emails with attachments that have no name or subject (e.g., draft emails without a subject line attached to another email), the MS Graph Mail Poller plugin would import in appian the attachment documents with empty names. This is incoherent with out of the box Smart Service Edit Document Properties that does not allow to edit a document with an empty name.

Scenario to Reproduce:

Create a draft email without a subject
Drag and drop that draft email as an attachment to another email
Send the email to a mailbox monitored by the plugin
The plugin will create a document with an empty name

Suggestion of improvement:

Attachments without names should be stored with sequential naming (`Untitled_1`, `Untitled_2`, etc.), preventing NullPointerException and empty document names in Appian. Logic to be applied to both regular and digitally signed (S/MIME) email processing paths.

RE: MSGraph Mail Poller

kirthikr — Fri, 27 Mar 2026 06:17:22 GMT

Dear Team, we have a requirement to read only specific emails from mailbox, currently we couldn't find any option to configure target folder to read emails from. It'll be very helpful if we could do that in future versions.

RE: MSGraph Mail Poller

Appian AppMarket — Tue, 27 Jan 2026 23:00:01 GMT

v4.3.3 Release Notes

Updated rules for table names and vulnerabilities.

RE: MSGraph Mail Poller

Nuno Curral — Wed, 21 Jan 2026 10:03:06 GMT

Performance Optimization Tip: Reduce Graph API Payload When Generating EML Files

Context: When generating EML files without file attachments, we can avoid retrieving unnecessary attachment data from Microsoft Graph API.

Location: In the extractDataAndDocFromMimeContentProxied method, when processing the EML generation path that excludes file attachments.

Recommended Change:

Use selective field retrieval with .select("id"):

AttachmentCollectionPage attachments = mc.graphClient.users(mailbox)
    .messages(copyMsg.id)
    .attachments()
    .buildRequest(requestOptions)
    .select("id")
    .get();

Instead of retrieving all fields:

AttachmentCollectionPage attachments = mc.graphClient.users(mailbox)
    .messages(copyMsg.id)
    .attachments()
    .buildRequest(requestOptions)
    .get();

Benefits:

Reduced network transfer: Avoids downloading large contentBytes from each attachment
Faster API response: Graph API returns only attachment IDs instead of full attachment data
Lower memory usage: Especially beneficial for messages with multiple large attachments
Same functionality: Attachment IDs are sufficient for deletion operations

Performance Impact: For messages with large attachments (e.g., 5+ files totaling 50+ MB), this can reduce API response time by 50-70% during EML generation without attachments.

This optimization applies specifically when generating EML files where file attachments are excluded (isKeepFileAttachmentsInEml != INCLUDE).

Hope this helps optimize your Graph API integrations!

Best regards,
NLC

RE: MSGraph Mail Poller

Nuno Curral — Thu, 08 Jan 2026 18:00:05 GMT

Bearer Token Not Being Passed in Proxied Requests to Microsoft Graph API

Issue Description:
When using the MS Graph Mail Poller plugin (version 4.3.2) with proxy authentication enabled (isConnectedViaProxy = true), requests to Microsoft Graph API fail with HTTP 401 Unauthorized errors. The Bearer access token is not being included in the API requests.

Root Cause:
In the MSGraphConnector.java file, the OkHttpClient (serviceHttpClient) is being built at line 73 BEFORE the TokenCredentialAuthProvider is created at line 97-99. This means the HTTP client is constructed without any mechanism to attach authentication tokens to outgoing requests. Even though the TokenCredentialAuthProvider is later passed to the GraphServiceClient builder, the underlying HTTP client was already finalized without token support, so it never adds the Bearer token to requests.

Suggested Fix:
The code in the isConnectedViaProxy block needs to be restructured:

1. Remove the early serviceHttpClient build (lines 67-73)
2. Create the TokenCredentialAuthProvider first (before building the HTTP client)
3. Use HttpClients.createDefault(tokenCredentialAuthProvider).newBuilder() to initialize the HTTP client builder - this ensures tokens are automatically included
4. Add proxy settings, timeouts, and proxy authenticator to the builder
5. Build the serviceHttpClient as the LAST step after all configuration is complete

The key is using HttpClients.createDefault(tokenCredentialAuthProvider) which creates an OkHttpClient.Builder that's pre-configured to inject Bearer tokens into all requests. The current code bypasses this by creating a plain OkHttpClient.Builder without the token provider.

Impact:
Without this fix, proxy-authenticated environments cannot retrieve emails. With the fix, Bearer tokens are properly included and authentication succeeds.

RE: MSGraph Mail Poller

Raghunath Kannan — Thu, 27 Nov 2025 04:15:06 GMT

Hello Team,

The plugin seems to replace special characters with a question mark. Is this an expected behaviour? Thank you in advance.

Eg: Subject line - テスト日本ඞ﷽

Whats written to the DB - ??????????

RE: MSGraph Mail Poller

Appian AppMarket — Fri, 14 Nov 2025 23:00:00 GMT

v4.3.2 Release Notes

Updated DBHandler to fix SQLi vulnerabilities.

RE: MSGraph Mail Poller

Appian AppMarket — Fri, 31 Oct 2025 22:00:01 GMT

v4.3.1 Release Notes

Security Updates - High

RE: MSGraph Mail Poller

Appian AppMarket — Tue, 30 Sep 2025 22:00:00 GMT

v4.3.0 Release Notes

Conversation ID and Conversation Index are now saved from the inbound email to the database.

Additional Note:
Use the add-on database scripts from supplemental files while upgrading.
This DB scripts are add on to the existing ones in the supplemental files and to be used only after upgrading to new version. If using old version existing DB scripts works, if using V4.3.0 and above use existing ones + add-on DB scripts.

RE: MSGraph Mail Poller

Appian AppMarket — Fri, 19 Sep 2025 22:00:01 GMT

v4.2.12 Release Notes

Upgraded angus dependencies for vulnerability fixes.

RE: MSGraph Mail Poller

Appian AppMarket — Thu, 04 Sep 2025 22:00:00 GMT

v4.2.11 Release Notes

Performance improvement for handling large sets of email attachments.