One 365 mailbox and several non 365 mailboxes
I am trying to configure the situation where I have one user on a microsoft 365 subscription and several other users on the domain using IMAP. I have configured the domain to send emails to the 365 subscriber and that works. However I am battling to get emails to the IMAP users. I have set up connectors to and from 365 and they validate correctly. However when I try to send a message from outside to one of the IMAP users I get Diagnostic-Code: smtp;554 5.4.14 Hop count exceeded - possible mail loop ATTR34 On researching this there are various tutorials which suggest loading exchangeonlinemanagement, connnect to the domain and execute Start-EdgeSynchronization I then get an error telling me the command is not recognised. Having searched it seems this command is only for on premises exchange servers and not the on line subscription model have. Any pointers to where I am going wrong would be gratefully received.
How do you identify the "You've joined the xxx group" emails?
When you join a microsoft 365 group via Outlook you get an email (apparently from yourself) to say you have joined it. How do you actually identify these emails on Exchange? I've looked at the headers but nothing really stands out. I need to exclude these types emails from rules.
Exchange Outlook Cache mode
Hi ladies and gents, We have a requirement to set Outlook cache mode set to download 3 months of emails. The environment consists of Exchange Online, Intune and M365 and the devices are cloud native Win 11. Could you please advise the best way to achieve this. GPO is not an option, and Intune does not have a policy for this.
External tag applied to internal users hidden from GAL
We have noticed our users who are hidden from the GAL have the external tag applied to their Profile Card as well as mail sent to other internal users. I suspect this may be related to the recent roadmap item, https://www.microsoft.com/en-us/microsoft-365/roadmap?id=498231. Was this an expected behavior for internal users?External tag in Cards
After the rollout of the https://www.microsoft.com/en-us/microsoft-365/roadmap?id=498231 our users who are hidden from the GAL have the External tag applied when sending internally, as well as the external tag on their profile cards. Was this an expected behavior with this change?Change Coming for How Outlook Extracts Events from Email
The Outlook events from email feature changes from January 31, 2026. Events will only be created if notifications support the properties for events defined by schema.org. Seeking consistency is a good idea, especially if it means that Outlook can process notifications sent by airlines, car hire companies, and other event providers in a way that doesn’t happen today. However, some disruption is likely. https://office365itpros.com/2025/09/30/events-from-email-schema/
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
