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Anyone else seeing mailboxes with Exchange Online 2 showing they now have 150gb?
Noticed this this morning. I understand that Basic was going to go to 100gb as they roll that out, but did they also increase Exchange 2 to 150gb to make it still worth paying for it vs an archive license? Or is this a glitch that is going to give us a problem later when people blow through the limit and MS corrects it? This example mailbox is licensed with Business Basic, then Exchange Online added on. It now shows 150gb. I'm seeing this for every user in every tenant I have looked at so far.
Exchange Room Resource Name Change
We have Room resources on Exchange online which were migrated from on-premise exchange server, last year we completely migrated the on-premise exchange to EXO, now when we had to change the names of these room resources due to some relocations of the meeting rooms, we had to rename it from the on-premise ad since it is syncd. I have just renamed the AD object property(display name, SMTP etc), and once it is syncd via AAD, now could see the new name from the EXO but when we use Get-Mailbox -Identity via Exchange online powershell its still showing up the old name, is there any other on-premise ad attribute which needs to be changed?
Canon Maxify Printer & Authentication
I recently added Microsoft Authenticator for all our domain email accounts. I have an account that I use for devices and applications to send emails to our domain internally. In each app, I re-tested the account, went into Microsoft Authenticator, approved the request and sent a test email: the apps work! My problem is my Canon Maxify printer. I entered the following information: sender address: user@ domain.com Outgoing mail server SMTP: smtp.office365.com Port Number: 587] Checked on Secure Connection (SSL) Checked on Don't verify certificate For authentication: SMTP authentication But it doesn't work. Do I need to enable a setting in Microsoft Entra and Exchange to get this to work? It is important that the printer send me status messages so I know when there is an issue. I also want to add that the email settings were working until I added the Microsoft Authenticator. Thank you!Using a scanner device with HVE
Has anyone had any success in setting up a scanner device with HVE? Everything I've read about the HVE option allows for a scanner to send to HVE, but as I've had no luck in getting my Brother ADS-2800 to communicate with HVE. I've confirmed the settings multiple times, but keep getting the same error when I attempt a test email from the scanner. " Communication over the network using SSL was unsuccessful. The SSL settings may not be configured to match the server settings. Confirm the send e-mail server "Port" and the setting for "SSL/TLS". We'd like to use these scanners for sending into a pre-designated internal mailbox. In theory it should work - in practice however, different story.Get-EXOMailbox -Filter returns empty when $WarningPreference = 'SilentlyContinue'
Get-EXOMailbox -Filter returns empty when $WarningPreference = 'SilentlyContinue' under UAMI app-only auth Module version: ExchangeOnlineManagement 3.x (PS7, Azure Automation sandbox) Auth method: Connect-ExchangeOnline -ManagedIdentity -ManagedIdentityAccountId <UAMI ClientId> Reproduction steps: $WarningPreference = 'SilentlyContinue' Connect-ExchangeOnline -ManagedIdentity ` -ManagedIdentityAccountId "<UAMI-ClientId>" ` -Organization "yourtenant.onmicrosoft.com" ` -ShowBanner:$false # Returns empty — mailbox provably exists Get-EXOMailbox -Filter "ExternalDirectoryObjectId -eq '<EntraOID>'" # Restore and retry — returns correctly $WarningPreference = 'Continue' Get-EXOMailbox -Filter "ExternalDirectoryObjectId -eq '<EntraOID>'" Expected: Mailbox object returned regardless of $WarningPreference Actual: Returns $null when $WarningPreference = 'SilentlyContinue' Notes: Only affects -Filter parameter under app-only/UAMI auth -Identity and -UserPrincipalName are not affected Delegated auth sessions are not affected $WarningPreference = 'SilentlyContinue' is a common pattern in Azure Automation runbooks, making this a significant undocumented breaking behaviour for automation scenarios
Outlook - Online mode address book search fails with "Operation failed" when Name only is ticked.
I hope you had this issue and managed to solve 😂 pulling my hair already. Symptom: In classic Outlook for Windows, open the Address Book → set Search to Name only → type any single character → "The address book operation failed." Switch to More columns and the exact same search works fine. Ctrl+K resolution in the To: field works. OWA people search works. Mail flow is fine. It's only the Name-only ANR seek in the dialog. Environment: Exchange hybrid, mailbox in Exchange Online, dir-syncedfrom on-prem AD via Entra Connect Classic Outlook for Windows, online mode (Cached Mode is not permitted here — this is the constraint, I can't just flip it) Affects all users, all machines What I've already ruled out: Test Result Other address lists (Contacts, All Users) Same failure Ctrl+K in To: field Works Safe mode (outlook.exe /safe) Same failure — not add-ins Multiple accounts / multiple machines Same failure Brand-new mail profile Same failure — not profile corruption Addressing order (Tools > Options) GAL set first, not "Choose automatically" Off corporate network (5G) Same failure AddressBookPolicy / OfflineAddressBook on mailbox Both blank (inherit defaults) Get-OfflineAddressBook Default OAB, IsDefault: True, web dist enabled Get-GlobalAddressList Default GAL, IsDefaultGlobalAddressList: True, stock default RecipientFilterDynamics 365 App for Outlook is not supported Cross Tenant
Hello, I am referring to the disclaimer here which clearly says that Dynamics 365 App for outlook is not supported when the excahange online is on a tenant separate from the Dynmics 365 Sales tenant. This seems to be true even after properly registering the Dynamics 365 as an application in the Azure Tenant of the Exchange Online instance and then configuring the profile etc. all correctly. It is mentioned that the incoming-outgoing emails and appt/contact/task sync will all work through server-side synchronization. But when will this be available for Dynamics 365 App for Outlook in cross-tenant scenario for customers ? As most customers prefer to have their exchange on a dedicated usually the corp hq tenant for better management and then all business apps in different separate tenants based on region/department/child companies ? Please also suggest if there are any workarounds. And kindly give me any pointers to other forums that will be more appropriate for this question, just in case…. Many Thanks https://learn.microsoft.com/en-us/power-platform/admin/connect-exchange-online-server-profile-oauth
HCW - Hybrid Configuration Wizard for Hybrid Certificate
I've gone through about 5 Microsoft Exchange Support Engineers for last two years with Exchange on-line migration and 80% of time running HCW, it caused email outages where the engineers did not know what to do. They've also gave conflicting information on how to correctly run HCW for adding server and to replace certificate. Some say use powershell and some says do not use powershell. Now, I need to replace the hybrid certificate, do I uncheck everything and check only "Update Secure Mail Certificate for connectors" in a centralized transport setup (email flows through on-prem servers) ? I assume uncheck everything will not roll back configurations. I have Microsoft Exchange engineers says it will and some say it won't and they all say they have 20+ experience.Microsoft Blocks EWS Access for Kiosk Users
A December 2 announcement says that Exchange Online will block access to Exchange Web Services for users with kiosk or frontline worker licenses from March 2026. In fact, the Exchange Online service description has always excluded EWS access for these licenses, but the necessary code to enforce the exclusion was never implemented. It will be in March. Time to check licenses… https://office365itpros.com/2025/12/05/exchange-web-services-kiosk/
