13,962 questions with Microsoft Exchange-related tags

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1 answer One of the answers was accepted by the question author.

unable to add additional email address

Hi All, I am using an Exchange 2016 hybrid environment. We create users on-prem and then migrate them to Exchange Online. I have a user, ******@contoso.com, and I want to add an additional email address, ******@contoso.com, to this user. When I execute…

Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
2,253 questions
asked 2025-03-02T18:15:12.8466667+00:00
Glenn Maxwell 12,476 Reputation points
accepted 2025-03-15T21:44:17.6+00:00
Glenn Maxwell 12,476 Reputation points
0 answers

Why does Microsoft Enterprise Applications appear to be broken?

I'm trying to authorize an application to my Exchange Online subscription, but when I attempt to do so, the authorization never completes (just hangs with the animation at the top of the page). In an attempt to troubleshoot, I navigate to the enterprise…

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
4,790 questions
asked 2025-03-15T20:57:47.2033333+00:00
Jason R. Coombs 0 Reputation points Microsoft Employee
0 answers

Recent Exchange Calendar Sync Issues with iOS Devices, Exchange 2019 & 9646 Errors

Title: Exchange Calendar Sync Failures for some users with ExchangeIS 9646 App Log Errors Details: We have ~ten or so users that have reported calendar sync issues using Exchange On-Prem, iOS Native Calendar and our MDM (Ivanti MobileIron) over the past…

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
7,824 questions
asked 2025-03-15T20:52:25.56+00:00
KM_MB 0 Reputation points
1 answer

Mail Flow in Hybrid Deployment When HQ Goes Down

Hello, We currently have a Hybrid Exchange deployment with three Exchange Server 2019 Mailbox servers in our HQ, and we also have a DR site with another three Mailbox servers as part of the same DAG. I already understand how mail flow works between our…

Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
2,253 questions
asked 2025-03-14T11:42:24.38+00:00
Ahmed Essam 140 Reputation points
commented 2025-03-15T19:07:38.6733333+00:00
Andy David - MVP 153.5K Reputation points MVP
0 answers

How to fix Delivery has failed to these recipients or groups

I have tried to send email for a company and a person which isn't the first-time sending emails to each other but recently when I try to send emails back to them, I mails bounces back and show the below message. knowing that we have sent emails to each…

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
4,790 questions
asked 2025-03-15T06:25:49.16+00:00
mohamed omar 0 Reputation points
edited the question 2025-03-15T08:55:40.65+00:00
simo-k 4,640 Reputation points
1 answer

Outlook.com to Microsoft 365 Migration failed

I'm trying to migrate my Outlook.com email to Microsoft 365 with IMAP Migration, but it keeps failing with this error. Error: ImapAuthenticationException: The username or password for this account is incorrect, or IMAP access is disabled. --> Imap…

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
4,790 questions
asked 2025-03-14T20:14:53.9133333+00:00
iresh93 21 Reputation points
commented 2025-03-14T20:27:18.55+00:00
iresh93 21 Reputation points
0 answers

when adding send on behalf to a distribution list i get the message try again later

Hello Please i need your help on this issue. when adding send on behalf to a distribution list i get the message "try again later"

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
4,790 questions
asked 2025-03-14T19:17:16.69+00:00
James James 20 Reputation points
1 answer

How to get the list of accounts with General as Employee number along with Mailbox and OneDrvie quota

Hello all, Is there way to pull a report for all generic accounts having General as Employee number along with Mailbox and OneDrive quota and last login details.

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
4,790 questions
asked 2025-03-07T18:22:46.9+00:00
Mani 396 Reputation points
commented 2025-03-14T18:53:59.55+00:00
Mani 396 Reputation points
2 answers

How to set time zone in microsoft teams - Hybrid Deployment

Hello, We are using teams in our organisation, and we're bringing on board some more people who are in different timezones. I've taken a look at this thread here:…

Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
2,253 questions
asked 2025-03-09T20:49:27.0566667+00:00
Rowan Scott 0 Reputation points
edited a comment 2025-03-14T14:30:16.7733333+00:00
Rowan Scott 0 Reputation points
9 answers One of the answers was accepted by the question author.

when i run the connect-exchangeonline to connect it it should open a authentications window but it gives the error A window handle must be configured. See https://aka.ms/msal-net-wam#parent-window-handles At C:\Program Files\WindowsPowerShell\Modules\Exc

when i connect-exchangeonline i get this error : A window handle must be configured. See https://aka.ms/msal-net-wam#parent-window-handles At C:\Program…

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
4,790 questions
asked 2024-12-06T11:41:18.0066667+00:00
Tanuj Saini 55 Reputation points
commented 2025-03-14T13:41:20.92+00:00
-M 10 Reputation points
0 answers

Can't revert from "Mail User" to "User Mailbox"

Hello, One of my users lost complete access to her mailbox, I believe her Office licence got "removed" for 2~ hours then put back but nothing came back to normal... O365 Admin Center shows this message on their profile : Exchange : The…

Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
2,253 questions
asked 2025-03-14T13:05:59.44+00:00
Axel C-FR 0 Reputation points
0 answers

Users Unable to Access Webmail or Outlook After Upgrading Exchange 2019 to CU15

Hi Everyone, After upgrading Microsoft Exchange Server 2019 to CU15, some users from different locations are facing issues accessing their email through webmail (OWA) and Outlook mobile app. Here are the specific problems we're encountering: Webmail…

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
7,824 questions
asked 2025-03-14T10:39:22.33+00:00
Ahmed Reja 0 Reputation points
edited the question 2025-03-14T10:51:12.1133333+00:00
simo-k 4,640 Reputation points
3 answers

Office add-in deployment within integrated apps: eligibility error with the Centralized Deployment

Hi, We have outlook add-in deployed via centralized deployment in "Microsoft 365 admin center > Settings. > IntegratedApps". For some time it was there and it worked. We went to update manifest file, this update didn't take any…

Outlook
Outlook
A family of Microsoft email and calendar products.
4,503 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.
4,313 questions
Office Management
Office Management
Office: A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.Management: The act or process of organizing, handling, directing or controlling something.
2,326 questions
Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
4,790 questions
asked 2024-06-05T11:57:03.36+00:00
Ante Kotarac 40 Reputation points
commented 2025-03-14T10:41:06.57+00:00
Barry Wells 0 Reputation points
2 answers

When DelegateSentItemsStyle is set, the Mail is always stuck in Outbox

We saw online on TechNet, that it is possible to send a mail in the name of a shared Mailbox and we tried to save the mail in the sent items in the shared Mailbox, cause we don't need a copy in the primary Mailbox. I attached an image from TechNet,…

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
7,824 questions
asked 2025-03-13T15:17:38.1533333+00:00
Aus der Au Dino 0 Reputation points
answered 2025-03-14T10:17:18.06+00:00
Aus der Au Dino 0 Reputation points
2 answers

Orange.fr SMTP does not deliver to my Exchange 2013 server anymore

Hi all, We use an on premise Exchange 2013 Server for our mail base. Since a few weeks, only mails from @orange.fr can't contact our organization. Any othe domain can. I update SPF, DKIM and dmarc policy on our domain but nothing has changed. Every…

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
7,824 questions
asked 2025-03-05T10:44:13.0466667+00:00
Mickael Vosgien 0 Reputation points
commented 2025-03-14T09:35:52.7433333+00:00
Kaiyue Gong (Shanghai Wicresoft Co Ltd) 710 Reputation points Microsoft External Staff
1 answer

Configure outlook Error.

I have free licenses for my organization for learning and practice, on every user mail id is showing but when i go to configure in outlook or sending mail to that ID it's not completion please anyone can Help me out. Thanks Regards.

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
4,790 questions
asked 2025-03-14T01:43:15.41+00:00
Shah Baig 15 Reputation points
answered 2025-03-14T08:37:32.8666667+00:00
Bruce Jing-MSFT 10,235 Reputation points Microsoft External Staff
2 answers

Gmail migration tool - stuck at NeedsApproval

Hello dear MS techs I'm pulling my hair off with having a problem with Gmail migration tool built-in Microsoft 365 admin center. I am using batch migration, not remote. I've done two pilot groups and there are many issues I'm facing with it and starting…

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
4,790 questions
asked 2025-03-09T19:53:00.11+00:00
Mart Lehtmets - HELMES 0 Reputation points
answered 2025-03-14T08:21:08.6466667+00:00
Mart Lehtmets - HELMES 0 Reputation points
0 answers

Impossible to revert "Mail User" to "User Mailbox"

Hello, One of my users lost complete access to her mailbox, I believe her Office licence got "removed" for 2~ hours then put back but nothing came back to normal... We are using Exchange 2019, Active Directory and Azure. O365 Admin Center shows…

Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
2,253 questions
asked 2025-03-14T08:13:41.5466667+00:00
Axel C-FR 0 Reputation points
1 answer

Exchange stop warning with Warning ASP.NET 4.0.30319.0

Hi everybody, Exchange 2019 with last cu and su. i get multiple warning error : Log Name: Application Source: ASP.NET 4.0.30319.0 Date: 06/03/2025 18:51:23 Event ID: 1309 Task Category: Web Event Level: Warning Keywords:…

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
7,824 questions
asked 2025-03-07T08:21:19.98+00:00
Marco 1 Reputation point
edited a comment 2025-03-14T07:15:35.6966667+00:00
Marco 1 Reputation point
3 answers

Exchange Server 2019 - ASP.NET 4.0.30319.0 Event ID 1309

Hello, I have an Exchange 2019 CU14 and it was working fine till I installed the Security Update for Exchange 2019 Cumulative Update 14 (KB5036401). since then my Event viewer is filled with ASP.NET 4.0.30319.0 Event ID 1309. ECP and OWA are working fine…

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
7,824 questions
asked 2025-03-06T05:37:56.73+00:00
EDDY RAFFOUL 0 Reputation points
commented 2025-03-14T06:31:05.1666667+00:00
EDDY RAFFOUL 0 Reputation points