Microsoft Exchange Online
A Microsoft email and calendaring hosted service.
1,870 questions
2 answers
Room Mailbox free/busy not working with office 365 mailbox in Hybrid Environment. Although working fine with on-prem mailbox
after troubleshooting, we observed that working fine with previous version but not working on below outlook version. Microsoft® Outlook® for Microsoft 365 MSO (Version 2409 Build 16.0.18025.20030) 64-bit. As per Microsoft support person. "we…
asked 2024-10-15T06:30:28.19+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(252.8, 4%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EZY%3C/text%3E%3C/svg%3E)
zohaib yousuf
21
Reputation points
answered 2024-10-19T02:27:09.33+00:00
zohaib yousuf
21
Reputation points
0 answers
Remove-Mailbox '1293f525-fbb5-45fd-8323-57902d7a2e46' -PermanentlyDelete
Hello Every one, When i try to run the command Remove-Mailbox '1293f525-fbb5-45fd-8323-57902d7a2e46' -PermanentlyDelete, I'm getting the below error can someone suggest me how to remove the holds. Please remove the holds before trying to delete.…
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(300.8, 45%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
1 answer
One of the answers was accepted by the question author.
access to licenses
Hi All i want to provide few users read access to Microsoft 365 Admin Center Licenses. i.e when users login to the below url, they should be able to view licenses without making any changes. please guide…
asked 2024-10-11T23:27:54.66+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(179.20000000000002, 7.000000000000001%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGM%3C/text%3E%3C/svg%3E)
Glenn Maxwell
11,436
Reputation points
accepted 2024-10-18T20:46:23.6866667+00:00
Glenn Maxwell
11,436
Reputation points
1 answer
How can I troubleshoot sync errors between Entra ID and M365
We have on-premises Active Directory synced with Azure/Entra, which then updates Microsoft 365 (M365) and Exchange Online with user details. However, I have one user whose details are syncing to Azure but not to M365. My main goal is to add a proxy…
asked 2024-10-18T18:55:24.19+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(192, 59%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGW%3C/text%3E%3C/svg%3E)
Gregor Wells
0
Reputation points
answered 2024-10-18T19:03:17.8266667+00:00
Andy David - MVP
148.4K
Reputation points MVP
0 answers
Microsoft 365 Calendar Won't Sync with iPhone or Webmail Using Exchange ActiveSync
Following is the Issue Outlook Desktop Exchange ActiveSync connections stopped working in Version 2401 Outlook for Microsoft 365 - Last Updated: February 29, 2024 ISSUE - After updating to Version 2401 (Build 17231.20182) Outlook stops connecting when…
asked 2024-10-18T15:41:37.8366667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 87%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBM%3C/text%3E%3C/svg%3E)
Barry Manovich
0
Reputation points
asked 2024-10-18T15:41:37.8366667+00:00
Barry Manovich
0
Reputation points
0 answers
Microsoft Office365 Pop3 Authentication Failed Using OAuth2 in C#
I am trying to connect pop3email client with token based authentication to create token, I have registered app in azure and using below details to generate token: endpoint : https://login.microsoftonline.com/{tenantId}/oauth2/v2.0/token grant :…
asked 2024-10-18T09:50:06.4166667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(38.4, 52%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAD%3C/text%3E%3C/svg%3E)
Astotek Dev
0
Reputation points
edited the question 2024-10-18T15:24:39.76+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(12.8, 76%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EV%3C/text%3E%3C/svg%3E)
VarunTha
8,935
Reputation points Microsoft Vendor
0 answers
Add onmicrosoft domains
Hello Please i need your help on this issue. I have 3 problems: I already have 5 onmicrosoft domains but would desire to add a 6th and make it my fallback domain. Is there a way to add more than 5 onmicrosoft domains? I have my custom domain and it…
asked 2024-10-18T13:41:40.78+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(172.8, 76%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EI8%3C/text%3E%3C/svg%3E)
IniobongNkanga-8038
656
Reputation points
asked 2024-10-18T13:41:40.78+00:00
IniobongNkanga-8038
656
Reputation points
1 answer
I am the admin holder but I don't see an admin centre ?
I have set up 365 on my email address and the sole user. I can't add any more domain emails to my account as I can not see an admin centre and I never received an email to give me any details on how to do this ?
asked 2024-10-15T12:44:58.6566667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(3.2, 3%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECR%3C/text%3E%3C/svg%3E)
Craig Richards
0
Reputation points
commented 2024-10-18T09:44:15.9333333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(316.8, 90%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAZ%3C/text%3E%3C/svg%3E)
Alex Zhang-MSFT
1,260
Reputation points Microsoft Vendor
5 answers
One of the answers was accepted by the question author.
Deferred mail with error 451 4.7.500 Server busy when sending mail to domains hosted Microsoft office 365
Dear Community. My company's mail server has an issue when sending emails to domains hosted on Microsoft 365. I use postfix as the smtp mail server engine. In the queue log, log like this: 288A2628411A 656263 Wed Oct 11 14:13:56…
asked 2023-10-11T10:01:20.4666667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(150.4, 75%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHZ%3C/text%3E%3C/svg%3E)
habieb zain
25
Reputation points
commented 2024-10-18T09:34:13.1066667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(236.8, 51%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELG%3C/text%3E%3C/svg%3E)
Lluis Grau Amenos
0
Reputation points
1 answer
Phish and spam emails
Hello Please i need your help on this issue. We are receiving phish and spam emails from external senders but the sender is using admin account to send the spam emails.
asked 2024-10-17T13:08:38.6933333+00:00
IniobongNkanga-8038
656
Reputation points
commented 2024-10-18T04:57:02.4833333+00:00
Olaf Helper
44,816
Reputation points
1 answer
Securing Exchange Online Environment
What steps can be taken to ensure that all security aspects of an Exchange Online environment are covered? How can assurance be provided that all security features are enabled? Additionally, what measures can be implemented to ensure compliance with…
asked 2024-10-15T07:43:11.3566667+00:00
Mahmoud Madani
0
Reputation points
commented 2024-10-18T03:04:35.94+00:00
Alex Zhang-MSFT
1,260
Reputation points Microsoft Vendor
2 answers
How to export Distribution List & its nested Distribution Lists' members to CSV file
Hello, We want to export all members of one large distribution list and its nested distribution lists. How can we do that? Regards, Raj
asked 2024-10-17T15:31:33.21+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(156.8, 50%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERA%3C/text%3E%3C/svg%3E)
raj a
316
Reputation points
edited the question 2024-10-18T02:42:01.4966667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(262.40000000000003, 35%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EXQ%3C/text%3E%3C/svg%3E)
Xintao Qiao-MSFT
3,450
Reputation points Microsoft Vendor
1 answer
Unable to get key for verifying signature from amurl claim in Exchange ID token
The Exchange ID token obtained from Office.js contains a signature that requires verification by extracting the amurl claim from the payload and downloading the public key from that URL.…
Microsoft Exchange Online
Microsoft Exchange Online
A Microsoft email and calendaring hosted service.
1,870 questions
Office Development
Office Development
Office: A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.Development: The process of researching, productizing, and refining new or existing technologies.
3,936 questions
asked 2024-10-17T08:32:53.3166667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(35.2, 81%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EK%3C/text%3E%3C/svg%3E)
KA
0
Reputation points
edited an answer 2024-10-18T02:30:17.6033333+00:00
Alex Zhang-MSFT
1,260
Reputation points Microsoft Vendor
1 answer
Unable to view DLP alerts from mail notification
Hello Please i need your help on this issue. We are having issue where we are Unable to view DLP alerts from mail notification.
asked 2024-10-08T13:42:50.6733333+00:00
IniobongNkanga-8038
656
Reputation points
commented 2024-10-18T00:32:33.24+00:00
Alex Zhang-MSFT
1,260
Reputation points Microsoft Vendor
2 answers
One of the answers was accepted by the question author.
Change Accepted Domain from Internal Relay to Authoritative
Hi! I have inherited a settings where our default domain is set to Internal Relay. With this settings Office365 doesn't reject unknown recipients and we get a loop in our Hybrid environment. All our mailboxes are moved to O365 but we still have Exchange…
asked 2023-02-02T15:47:34.2766667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(83.2, 80%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESM%3C/text%3E%3C/svg%3E)
Sajid Mumtaz
66
Reputation points
answered 2024-10-17T17:00:21.7833333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(38.4, 71%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EYG%3C/text%3E%3C/svg%3E)
Yousaf, Gazzanfar (Cognizant)
0
Reputation points
2 answers
Powershell script taking too long to export results to .csv
I have a script that works perfectly until it comes to exporting the csv file. I have tried the script with a sample batch of data (50) and it runs without any issue. However, I have over 70,000 objects in the source data and even breaking it down to…
asked 2023-01-13T13:29:54.7966667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(249.60000000000002, 53%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESB%3C/text%3E%3C/svg%3E)
Sharon Beckett
1
Reputation point
answered 2024-10-17T12:41:48.4633333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(182.40000000000003, 95%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMC%3C/text%3E%3C/svg%3E)
MELIN Christophe
0
Reputation points
1 answer
One of the answers was accepted by the question author.
I have distribution list mail delivery issue
Hello Please i need your help on this issue. I have distribution list mail delivery issue. The email stop receiving emails.
asked 2024-10-16T12:14:29.9333333+00:00
IniobongNkanga-8038
656
Reputation points
accepted 2024-10-17T11:59:35.2+00:00
IniobongNkanga-8038
656
Reputation points
1 answer
Receiving email
Hello, Please i need your help on this issue. We are experiencing an issue where we are noticing that some emails are not reaching our online Exchange. We have checked our filters and they are not stuck there. Through doing testing, we have seen that…
asked 2024-10-09T13:43:35.36+00:00
IniobongNkanga-8038
656
Reputation points
commented 2024-10-17T09:46:57.7666667+00:00
Xintao Qiao-MSFT
3,450
Reputation points Microsoft Vendor
6 answers
One Azure VM terminal server user account cannot connect with Outlook 365 desktop app
Reposting here after asked to move to this forum... We have an Azure virtual machine terminal server running MS Datacenter 2016. Users log in via RDP with their Microsoft Azure accounts. They have E3 licenses. Recently, a single user started having…
asked 2023-02-05T15:56:53.7366667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(192, 0%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAW%3C/text%3E%3C/svg%3E)
Amy Watson
0
Reputation points
commented 2024-10-17T08:37:47.47+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(64, 48%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELK%3C/text%3E%3C/svg%3E)
Linda Kadrijaj
0
Reputation points
1 answer
Set email signatures for all users in Exchange Online?
Is there currently a way to set email signatures for all mailboxes in Exchange Online, without the use of a paid product, and without the use of email flow rules to add disclaimers? It looks like there used to be a PowerShell module that did it…
asked 2024-10-13T13:48:52.4766667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(121.6, 32%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EF%3C/text%3E%3C/svg%3E)
FarazI995
160
Reputation points
commented 2024-10-17T06:56:43.41+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(44.800000000000004, 43%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBJ%3C/text%3E%3C/svg%3E)
Bruce Jing-MSFT
5,255
Reputation points Microsoft Vendor