Migrating on-prem functional shared mailboxes to 365
I have an on-premises Exchange environment (SE Edition) with Edge servers, configured in a hybrid setup. New users are provisioned directly in Office 365, but many legacy users still exist solely on-premises. In addition, we have around 800 shared/functional mailboxes that are local and were not created as hybrid objects. I need to migrate these on-prem shared mailboxes to Office 365. I’m unsure of the best approach—should I: Convert them to full hybrid and migrate using the hybrid tools? Recreate them manually in Office 365? Or is there another recommended method? My goal is to make the transition as seamless and transparent as possible for users, while keeping the process simple and efficient on the admin side.
Exchange 2016 and deffer delivery
Hi! Is it possible to configure delay of outgoing sending messages for user mailbox, like outlook's deffered delivery? I couldn't find such an option in mailflow-rules, as deepseek says "New-TransportRule -Name "DelaySendForUser" -SenderAddressEquals "email address removed for privacy reasons" -DeferMessageMinutes 2 -Enabled $true" - it doesn't work:))
Issue with Distribution Groups Members
Hello Please i need your help on this issue. Issue with Distribution Groups Members. I created Manually Dynamic Distribution Group and added Users with Exchange Mailbox option but its added all the active licenced users and shared mailboxes and unlicenced users also. I only want Licenced users only in that group where E3 Licenced are assigned and users are active. But all users are added in that group instead of Licenced active users. I need only automatically add active users who has Office 365 Licence. I do not require any shared mailbox users I do not require non-active users NOTE: I do not want to create the users through PowerShell. So please is there a solution for GUI onlyHow to extract domain of the original link from a SafeLink
I'm trying to extract the original domain from the links that are warped by Microsoft SafeLinks I use the Nager.publicsuffix library in C# to parse domains, but with SafeLink's it only returns the SafeLink domain instead of the real one Example: https://ind01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fstspg.io%2Fn504fyn3g38x... https://nam.safelink.emails.azure.net/redirect/?destination=https%3A%2F%2Fentra.microsoft.com%2Fdemodomain.cf%23blade... I've tried writing custom logic for SafeLink pattern, but Microsoft seems to use different formats, so it's not reliable Question: What's the best way in C# to reliably detect and unwrap these SafeLink's (or other tracking URLs) so I can extract the original domain before passing it to Nager.PublicSuffixHow to consistently differentiate Microsoft service notification emails from normal user emails?
I receive a large number of notification mails from Microsoft services (SharePoint, Teams, etc.) and they clutter my mailbox. I’ve tried: Inbox rules filtering by sender (e.g., email address removed for privacy reasons) → doesn’t work since Microsoft uses many changing domains. Filtering by Microsoft IP ranges → some internal org mails also get caught. Filtering by domains from Microsoft endpoint list → works, but the list updates monthly, so not reliable. Question: Is there a consistent way (e.g., via Internet message headers or any other property) to reliably identify Microsoft-generated notification emails vs normal user emails?
HCW fails to download
Erst einmal Entschuldige mich mich falls ich diese Frage im falschen Kanal stelle Hallo versuche gerade mit dem "Programm" Microsoft.Online.CSE.Hybrid.Client.application die HYbrid Stellung zu realisieren komme aber nicht weiter . Das Programm startet einwandfrei. Die Datei Microsoft.Online.CSE.Hybrid.Client.exe.manifest wird aber nicht heruntergeladen In der Firewall kann ich keinen Blockierten traffic sehen. Meldung die Anwendung konnte nicht dedownloaded werden. Erforderliche Dateien fehlen in der Anwendung. Wenden Sie sich an den Hersteller der Anwendung OS Server 2012R2 Software Firewall ist aus Kein Antivirenprogramm aktiv Falls jemand ähnliche Probleme hatte und die lösen konnte wäre ich sehr dankbar über Hinweise wie das geschafft wurde. Der Support von Microsoft war nicht sehr hilfreich Ticket ist aber noch offen. Die Aktivierung von C:\HCW\Microsoft.Online.CSE.Hybrid.Client.application führte zu einer Ausnahme. Folgende Fehlermeldungen wurden entdeckt: + 'file:///C:/HCW/Application Files/Microsoft.Online.CSE.Hybrid.Client_17_1_2714_0/Microsoft.Online.CSE.Hybrid.Client.exe.manifest' konnte nicht gedownloadet werden. + Ein Teil des Pfades "C:\HCW\Application Files\Microsoft.Online.CSE.Hybrid.Client_17_1_2714_0\Microsoft.Online.CSE.Hybrid.Client.exe.manifest" konnte nicht gefunden werden.Hotfix update for 2016 CU23 HU18: (KB5066370) breaks OWA and leaves all services disabled
Has anyone else applied the latest hotfix? First of all it tries to validate open files instead of just killing these processes as part of the update, then after rebooting all the services are left in a disabled state. Then I discover it has broken IIS and OWA doesnt work. We have had client issues all day in the office. It looks like another update has been pushed out without sufficient testing. Any help would be grateful at this point, I am looking to take 2 out of 4 servers offline.
Missing Teams Contacts after Migration
Hello, We are currently migrating mailboxes from exchange 2019 to exchange online. The migration works absolute flawless. Now we have some employees complaining about missing teams contacts that were previously created in Teams only. The MS support told me that this is a teams limitation and the local contacts are gone. I know about unified contacts, thats contacts are synced now between outlook and teams and newly created contacts are stored in exchange online mailbox. But whatabout the old contacts ?? cant believe that theres no workaround to keep this contacts. Do you know something about this ? Rene
Which ExchangeServerApp is the right one? How to tell?
From running HCW multiple times w/ various exceptions, we have a number of separate ExchangeServerApp instances in Entra. How can I definitively tell which one (or more) is the correct instance? I can't find any of the UUIDs in the Entra entries anywhere in the Exchange Server configuration. I can't run the ConfigureHybridExchangeApplication script because (from the error it gives) it doesn't handle the multiple app identifiers. I submitted feedback but haven't heard back from the CSS-Exchange people. Any guidance appreciated.Information about Exchange SE trough SPLA
Does anyone have any information about the possible availability of Microsoft Exchange Subscription Edition (SE) through SPLA ? As you may know, SharePoint Subscription Edition (SE) was already released since a few years, however it never approved by Microsoft to be used in SPLA, it is not mentioned in the SPUR and they don’t provide the installations keys for this version to SPLA hosters. If they follow the same policy with Exchange SE, we will not have any solution to run an Exchange Server on a supported version after 14th of October 2025 when Exchange 2019 reaches end of support. Thanks for your comments Thierry