8,134 questions with Exchange | Exchange Server | Management tags

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2 answers

How to fix 500 HTTP login Exchange 2019 ecp

I am currently encountering an issue with logging into Exchange 2019 and require assistance from Exchange infrastructure specialists. I have deployed an Active Directory and Exchange 2019 environment running on Windows Server 2022 for my organization. In…

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-24T23:03:41.31+00:00
Nguyễn Bá Hiếu 0 Reputation points
commented 2026-03-30T02:34:13.42+00:00
Austin-H 8,345 Reputation points Microsoft External Staff Moderator
3 answers

Renew an expired Exchange SE Federation Delegation certificate with AD Sync active

Hello! A customer has its Exchange Federation Delegation certificate expired. Normal procedures according to documentation give errors, and I guess it is because AD Sync is used there also. There are no other federation trusts, and there are no federated…

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-28T13:22:50.61+00:00
Stefan Falk 171 Reputation points
answered 2026-03-28T15:33:34.29+00:00
Steven-N 23,295 Reputation points Microsoft External Staff Moderator
2 answers

Email account changed from IMAP to Microsoft Exchange

Hi I've changed my email address from an IMAP account to a Microsoft Exchange account but my Outlook app on my laptop won't find it. It keeps assuming it is the old IMAP account. When I configure manually it comes up with a message saying "The name…

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-26T08:29:29.3833333+00:00
Lynne Jardine 0 Reputation points
commented 2026-03-27T13:33:34.5733333+00:00
Hin-V 13,385 Reputation points Microsoft External Staff Moderator
7 answers

How To Have Separate Email Signatures for Internal and External Emails

I am on Windows 10 through Outlook App email, and I would like to set a different signature for internal and external emails but cannot find how to do it. To be clear, I would like completely separate email signatures so I have my more formal one for…

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2022-12-28T22:02:08.02+00:00
Brian Cooper 236 Reputation points
commented 2026-03-26T19:47:22.86+00:00
Danielle Oldfield 0 Reputation points
1 answer One of the answers was accepted by the question author.

Exchange SE RTM Dec25SU – DownloadDomains OWA attachment preview blocked by X-Frame-Options

Hello, I configured DownloadDomains on Exchange Server SE RTM Dec25SU (build 15.02.2562.035) following Microsoft's official documentation. Everything appears correct but OWA attachment preview is not working. Configuration (all verified): DNS:…

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-25T10:41:11.2233333+00:00
Iván Zoltán 20 Reputation points
accepted 2026-03-25T10:45:06.2+00:00
Iván Zoltán 20 Reputation points
2 answers

Inaccessible emails

How to fix inaccessible owa,ecp, exchange toolboox, outlook........the mail server can respond to ping , nslookup using both ip address and FQDM

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-24T08:17:53.6+00:00
Nelson N. Mahlangu 0 Reputation points
commented 2026-03-25T07:19:26.63+00:00
TiNo-T 11,980 Reputation points Microsoft External Staff Moderator
2 answers

I can't sign into Exchange hosting admin acct

I can't sign into Exchange hosting admin acct. I get asked for a verification code from an authenticator. But one was never set up. The login screen does not offer any other options.

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-24T00:14:30.1033333+00:00
Richard Walton 0 Reputation points
commented 2026-03-25T01:26:14.3033333+00:00
Teddie-D 13,360 Reputation points Microsoft External Staff Moderator
1 answer

Exch.> dynamic distr. mailer - Filter "recipient container" not working

We use Exchange Server SE on-prem. I created a dynamic distribution mailbox "all" and set the "recipient filter" to the AD OU where all users, and ONLY users, are located. Sorry it's german but is defines USERS WITH EXCHANGE-MAILBOXES…

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-23T12:16:29.72+00:00
Stefan K 106 Reputation points
commented 2026-03-24T09:59:53.69+00:00
Hin-V 13,385 Reputation points Microsoft External Staff Moderator
1 answer

Inaccessible emails

Cannot able to access emails through outlook and owa...ECP and exchange tool box as well. below is the error: when connecting through owa and ecp This page isn’t working right now 127.0.0.1 can't currently handle this request. HTTP ERROR 503 The mail…

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-24T08:34:51.11+00:00
Nelson N. Mahlangu 0 Reputation points
commented 2026-03-24T09:03:53.1933333+00:00
Jack-Bu 6,765 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Discovery Hold

Hi All For one of my user user1@Anonymous .com discovery hold is occupying almost 87GB, i have removed the hold now. how do i delete the discovery hold. Litigation hold is disabled for the user. Get-MailboxFolderStatistics -Identity…

Exchange Online
Exchange Online

A cloud-based service included in Microsoft 365, delivering scalable messaging and collaboration features with simplified management and automatic updates.

7,052 questions
Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2020-10-23T01:06:55.687+00:00
Roger Roger 7,511 Reputation points
commented 2026-03-24T07:23:31.0766667+00:00
Hemanth Reddy 0 Reputation points
3 answers

One user is not receiving incoming emails from a specific domain, while other users can.

Subject: Email Issue for a Specific User Hello, We have a user in our tenant who is not receiving emails from a specific company with whom we do business. While this user can send emails to their contact at that company's domain, our user does not…

Exchange Online
Exchange Online

A cloud-based service included in Microsoft 365, delivering scalable messaging and collaboration features with simplified management and automatic updates.

7,052 questions
Exchange | Exchange Server | Other
Exchange | Exchange Server | Other

A robust email, calendaring, and collaboration platform developed by Microsoft, designed for enterprise-level communication and data management.Miscellaneous topics that do not fit into specific categories.

1,606 questions
Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2024-10-23T14:23:09.9033333+00:00
LM-5132 305 Reputation points
commented 2026-03-23T12:43:30.9433333+00:00
F- Lan 0 Reputation points
2 answers

SEND AS permission needs reset on server side for Exchange

I rebuilt my Outlook profile and now get a MapiExceptionSendAsDenied error. The account connects and syncs but cannot send. All local troubleshooting has been exhausted. I believe you need to reset the Send As permission directly on the server side,…

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-21T04:16:21.78+00:00
Lori Salow Marshall 0 Reputation points
commented 2026-03-23T10:36:38.84+00:00
Vergil-V 10,660 Reputation points Microsoft External Staff Moderator
2 answers

Why Exchange SE CU1 is breaking my legacy integrations

I'm really feeling the heat with the new Exchange Server SE CU1 update because the shift to Kerberos-by-default is absolutely wrecking our legacy environment. We've got older scanners and internal apps that only speak NTLM, and suddenly they’re all…

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-21T03:52:00.6+00:00
Hardeman Saul 20 Reputation points
commented 2026-03-23T07:20:12.4166667+00:00
Steven-N 23,295 Reputation points Microsoft External Staff Moderator
2 answers

Can't send or receive email from my exchange account on any device.

When sending email get the following error message; This message couldn't be delivered because the sending email address was not recognized as a valid sender. The most common reason for this error is that the email address is, or was, suspected of…

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-20T02:47:00.02+00:00
Matthew 0 Reputation points
commented 2026-03-23T05:16:18.79+00:00
Matthew-P 11,905 Reputation points Microsoft External Staff Moderator
2 answers

Microsoft server is not connecting to Mac mail

Problem with the mail app on Mac connecting to the server of the exchange account, can’t download Emails from the server they’re stuck on “downloading” and so I can't access sent and received emails.

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-19T20:25:33.6966667+00:00
Emma 0 Reputation points
commented 2026-03-23T00:41:43.75+00:00
Dora-T 11,470 Reputation points Microsoft External Staff Moderator
5 answers

Internet message id differs in Sent and Inbox item when Outlook connected to Exchange in OnlineMode

Hi! When Outlook is working in online mode (not cached), interenet message id is broken during sent. When I check internet message id (PR_INTERNET_MESSAGE_ID_W) in Sent folder and for the same item in recepient's Inbox folder it is different. Sent time…

Outlook | Windows | Classic Outlook for Windows | For business
Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2020-09-18T10:14:31.067+00:00
Sergey Belikov 6 Reputation points
commented 2026-03-22T21:43:09.9166667+00:00
i3v 51 Reputation points
4 answers

Exchnage 2016 Topology Discovery Failed

Hello Team, Our Exchange 2016 server encountered an issue and we are unable to receive any emails: I am wondering you could advice what could happened? System: Exchange 2016 VM We can see following issues in the Event Viewer: …

Windows for business | Windows Server | User experience | Other
Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2022-06-23T09:56:58.883+00:00
Przemek Wawrzyczny 46 Reputation points
answered 2026-03-20T15:13:17.6466667+00:00
Stefan K 106 Reputation points
0 answers

Update All Device Drivers Check for Windows Update

1.Update All Device Drivers: Press Windows key + X to open the Power User menu and then click on the Device Manager option. In the Device Manager window, expand each driver’s section and try to locate the driver that is indicated with a yellow…

Microsoft Security | Microsoft Graph
Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2024-10-16T15:55:27.29+00:00
SHIVEK SAROJ 10 Reputation points
commented 2026-03-19T20:39:51.92+00:00
Jayne Smith 0 Reputation points
1 answer

Exchange Server Management Console not loading

Hello, I am trying to access the Exchange Admin Console on the web on my Exchange Server. The server is running Windows Server 2025, and I have Exchange Server 2019 CU14 installed. Whenever I open the portal on the web, I'm greeted with a login page. I…

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-17T18:24:48.2866667+00:00
Chris Melnik 5 Reputation points
commented 2026-03-19T06:23:58.9266667+00:00
Hani-Ng 9,500 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

Certificate renewal

I am using Exchange Server SE (Subscription Edition). The Microsoft Exchange Server Auth Certificate on my server is expiring. Below is the current certificate information: (Get-AuthConfig).CurrentCertificateThumbprint | Get-ExchangeCertificate |…

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

8,134 questions
asked 2026-03-03T18:58:51.4866667+00:00
Glenn Maxwell 13,411 Reputation points
accepted 2026-03-18T00:40:50.77+00:00
Glenn Maxwell 13,411 Reputation points