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Exchange Online PowerShell Dumps the Credential Parameter
On February 12, Microsoft announced the deprecation of the Credential parameter for the Connect-ExchangeOnline cmdlet in the Exchange Online PowerShell module. The deprecation won’t affect interactive sessions (which should all be protected by MFA), but it might stop some background jobs running when Microsoft retires the server components that currently support the ROPC authentication flow. Time to check scripts! https://office365itpros.com/2026/02/16/exchange-online-powershell-ropc/
Exchange 2019 Certificate Error
Hello guys, I plan to migrate my users on Exchange 2019, currently, i have 2 Exchange 2013 servers. As soon as i installed the exchange Server 2019, I changed all the virtual directories and i also runned the command to make sure the users doesn't connect on the new server. But now every users who uses Microsoft Outlook from the environment have a pop up that says that the certificate is not valid, and its normal because I can't apply the services SMTP and IIS on my wildcard certificate. Indeed, when i enable the services SMTP and IIS on my new certificate, it doesn't apply. I tried to enable from the ECP, it says "Are you sure you want to replace the existing certificate", when i say yes, it doesn't change anything, the smtp service is still unchecked. I also tried to stop IIS and restart IIS, restart the server but it doesn't changed anything, and I also tried to enable the services directly with the powershell command with the correct thumbprint of the wildcard certificate as it is said on the event viewer : "Enable-ExchangeCertificate -Server "EX01-2019" -Thumbprint A6BC992FDD... -Services SMTP,IMAP,IIS -Force" But it still don't work, when i check the certificate, only the service IIS is active. I had to uninstall completely the exchange server, because users were complaining about the pop up. Have anyone faced this problem before? Thank you very much for your advices guys
Exchange 2010 to Microsoft 365 Migration – Recommended Approach and Tools
I’m looking for guidance on migrating Exchange 2010 (on-premises) to Microsoft 365 / Office 365. Is a direct migration from Exchange 2010 supported, or is an intermediate hop (such as upgrading Exchange or setting up a hybrid configuration) required? Additionally, could you please recommend any reliable tools that can help with this migration? I also have a few PST files that need to be migrated as part of the process. I’d appreciate insights on best practices, common challenges, and lessons learned from real-world migrations. Thanks in advance for your help.The Final Countdown to Remove EWS from Exchange Online Begins
Microsoft announced the dates leading to the final retirement of Exchange Web Services from Exchange Online. If all goes well, the EWS retirement in the cloud will happen by May 2027. Challenges still exist. Microsoft must remove EWS from its own apps, including Outlook, and help tenants and ISVs make the leap to Graph APIs. Plans are in place and progress is being made, but will everyone be ready when Microsoft starts to remove EWS permanently from Exchange Online in April 2027? https://office365itpros.com/2026/02/06/ews-retirement-may-2027/
OWA “Manage Add-ins” Stuck Loading After Clicking Settings (Exchange 2019 CU15 / Exchange SE RTM)
I have an Exchange Server environment with three versions: Exchange Server 2019 CU14 Dec25SU, Exchange Server 2019 CU15 Sept25H, Exchange Server SE RTM, and Exchange Server SE RTM Dec25SU. Issue: When users click the Settings icon/button in OWA/Outlook on the web and then click Manage add-ins, the page does not redirect and remains stuck on an external loading screen. Tested environments: Exchange Server 2019 CU14 Dec25SU: Works without issues Exchange Server 2019 CU15 Sept25H, Exchange Server SE RTM, and Exchange Server SE RTM Dec25SU: Does not work on any of them Troubleshooting performed: Moved all arbitral mailboxes to a database on Exchange Server SE RTM Dec25SU (the most recent version in the forest). (No success) Migrated all servers to Exchange Server SE RTM Dec25SU. (No success) Isolated testing using the hosts file (DNS) pointing to each host individually, and all hosts have the issue. All SE RTM Dec25SU servers were installed in admin mode via Command Prompt. I also ran the two .ps1 scripts below on a test host after installing the SU: #learn.microsoft.com/en-us/troubleshoot/exchange/client-connectivity/owa-stops-working-after-update cd "C:\Program Files\Microsoft\Exchange Server\V15\Bin" .\UpdateCas.ps1 .\UpdateConfigFiles.ps1 iisreset /restart Workaround: With the user already authenticated, if I manually open the URL below in the same authenticated session, it loads normally: webapp.mydomain.com/owa/#path=/options/manageapps Does anyone know how to fix this, or if this is a bug that started with CU15 (or a later SU)?Report for email reply time for shared mailbox
Hi All, i am looking to crate report for management for our KPI. Management want to to know how quick teams are replying to email once it's landed to mailbox. Also, average reply time for the particular mailbox for a day or week or month. if nay one know how to achieve this please let me know it will be grate help. Thanks, PreyashMicrosoft Previews userConfiguration Graph API
A new userConfiguration API is available to retrieve data from Folder Associated Items (FAIs) in Exchange mailboxes. The new Graph API is part of the EWS migration project and is intended to allow application developers to migrate EWS code that updates FAIs with Graph equivalents. Most Microsoft 365 tenants will never use this API, but it’s nice to know how things work. https://office365itpros.com/2026/02/05/userconfiguration-api-beta/Microsoft Delays Retirement of Basic Authentication for SMTP AUTH
Microsoft has delayed the retirement of basic authentication for the SMTP AUTH client submissions protocol to 2027 or beyond. New tenants will be the first to be blocked and Microsoft will disable basic authentication for SMTP AUTH in a way that existing tenants can reenable the protocol. Eventually, we’ll get a date for final retirement sometime in 2027. These things take time! https://office365itpros.com/2026/01/29/smtp-auth-basic-retirement/M365 tenant emails marked as spam (SCL:5, CAT:PHISH) despite perfect authentication
Hello, Our business emails from our M365 tenant are consistently marked as spam when sent to other M365 tenants, despite perfect email authentication. Technical status: - SPF: Pass ✓ - DKIM: Pass ✓ (recently enabled) - DMARC: Pass ✓ (recently enabled) - Composite Authentication: Pass (reason=100) ✓ But messages are still marked as: - X-MS-Exchange-Organization-SCL: 5 - X-Forefront-Antispam-Report: CAT:PHISH;SFV:SPM We suspect a tenant reputation issue, possibly because the tenant ran for months without DKIM enabled. Now that all authentication is correct, how can we request a reputation review? Thank you!
