MAIL_READER not working

Hi Guys,

I trying to configure my mail_reader to read my invoices attached to a mailbox. I configured my mail_reader like below. How validate that IFS is going to get the information at this mailbox?

IFS Version: 25R2.3

 

 

Thanks,

 

Gianni Neves

Hi ​@gianni.neves ,

Your configuration looks mostly good! Here's what to check and validate step by step:

 What's Correct in Your Setup

• Host: outlook.office365.com 
• Port: 993 with IMAP + TLS 
• Authentication: Client Credentials (right choice for O365) 

Things to Verify

1. Azure App Permissions (Most Common Issue) Your Azure AD App Registration must have:

• IMAP.AccessAsApp — application permission
• Admin Consent must be granted
• Go to: Azure Portal → App Registrations → Your App → API Permissions

2. Enable the Mailbox for IMAP Run this in Exchange Admin PowerShell:

Set-CASMailbox -Identity "yourmailbox@domain.com" -ImapEnabled $true

3. Access Token URL Format Should be exactly:

https://login.microsoftonline.com/{tenant-id}/oauth2/v2.0/token

Make sure it's v2.0 not just /oauth2/token

4. Turn on "Create Response" Currently it's OFF — if you need IFS to process and respond to emails, toggle this ON

🔍 How to Validate It's Working

Go to: IFS Cloud → Solution Manager → Background Jobs

• Look for MAIL_READER job
• Check execution logs for errors
• Change Log Level from Warning → Info temporarily to see full detail

Quick Test: Send a test invoice email to the mailbox → Check Background Jobs → If it picks it up, you're good! ✅

Try the Azure permissions fix first — that's the #1 reason Client Credentials auth fails on O365.

Hope this helps!

Thanks ​@Lingesan08, much appreciate your help.

IT support technician has fixed the azure permission, but what I find weird is that I cannot see any background job for MAIL_READER.

Any idea?

Thanks,

Gianni Neves 

​@gianni.neves  You need to check the Application Message page and the background job page.

I just checked and neither of them has any call or receive information for MAIL_READER.

Thanks,

Gianni Neves