8,168 questions with Exchange | Exchange Server | Management tags

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Erroneous "Remote server returned '550 5.7.233" NDR

An employee received a "Remote server returned '550 5.7.233 - Your message can't be sent because your tenant has exceeded its daily limit for sending email to external recipients (tenant external recipient rate limit)." NDR. When I check the…

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.

8,168 questions
asked 2026-05-27T17:38:55.66+00:00
Robert Moss 5 Reputation points
commented 2026-05-27T20:11:43.92+00:00
Hin-V 15,005 Reputation points Microsoft External Staff Moderator
1 answer

Two of my colleagues need access to the Exchange Admin Center https://mail.some-corp.com/ecp/ to access and manage specific DLs

Two colleagues of mine are owners of 3 distribution lists for [Moderator note: personal info removed] Management. These distro lists are housed here in the CVS Exchange Admin Center- https://mail.[Moderator note: personal info removed].com/ecp/ They…

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.

8,168 questions
asked 2026-05-27T11:35:02.9366667+00:00
Tibbs, Jamie D 0 Reputation points
edited the question 2026-05-27T12:17:37.5133333+00:00
Vergil-V 13,300 Reputation points Microsoft External Staff Moderator
3 answers

Exchange: Failed to disable the mailbox due to a conflict in directory settings.

Hello there, I am getting this error in one of the users mailbox in O365. Exchange: Failed to disable the mailbox <GUID> due to a conflict in directory settings. To disable this mailbox, first run Enable-RemoteMailbox on-premises. After…

Exchange Online
Exchange Online

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

7,198 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.

8,168 questions
Exchange | Hybrid management
Exchange | Hybrid management

The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.

2,429 questions
asked 2022-08-12T12:02:20.43+00:00
Ajaz Khan 276 Reputation points
commented 2026-05-26T01:12:15.3433333+00:00
sammy thomas 0 Reputation points
5 answers One of the answers was accepted by the question author.

automapping for security group

Hi, As it said on Shared mailboxes in Exchange Online page "Users who are members of the security group will be granted the permissions to the mailbox". Ok, but automapping doesn't work for security group, so it's partially useless. …

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.

8,168 questions
asked 2022-06-27T12:56:03.48+00:00
Fugazi 21 Reputation points
answered 2026-05-24T17:15:04.7666667+00:00
Manfred Peer | peerfect.systems 0 Reputation points
4 answers

Whats the problem with OWACalendar.Proxy in Exchange 2019 On-Prem?

Hello! I have next problem. The OWACalendar.Proxy health set on all Exchange 2019 servers in the organization is reporting an unhealthy state. The associated monitor OWACalendarProxyTestMonitor is showing status Unhealthy. I saw that in my log…

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.

8,168 questions
asked 2026-05-17T16:27:06.15+00:00
Aleksandr Aleksandr 25 Reputation points
recommended 2026-05-21T01:41:29.7+00:00
Hani-Ng 11,160 Reputation points Microsoft External Staff Moderator
1 answer

manage mailboxes

In the Exchange Admin portal , how do I manage mailboxes? I cannot see any options to do this.

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.

8,168 questions
asked 2026-05-19T14:36:33.4033333+00:00
Jim Danson (ADM-MS) 0 Reputation points
commented 2026-05-20T22:59:32.11+00:00
Hin-V 15,005 Reputation points Microsoft External Staff Moderator
2 answers

Exchange nefunkčnost v mobilu

přestal mi fungovat e-mail na mobilním zařízeni a nejde mi přidat účet na Exchange v mobilním zařízení.

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.

8,168 questions
asked 2026-05-09T08:29:16.04+00:00
Radek Vandas 0 Reputation points
commented 2026-05-20T09:09:51.7333333+00:00
Gabriel-N 17,705 Reputation points Microsoft External Staff Moderator
2 answers

How to count which business systems use SMTP and EWS to send emails through Exchange 2019?

Hi： How to count which business systems use SMTP and EWS to send emails through Exchange 2019? thanks

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.

8,168 questions
asked 2026-05-14T03:39:53.7366667+00:00
yanhaowen 65 Reputation points
commented 2026-05-18T05:50:52.4166667+00:00
Hani-Ng 11,160 Reputation points Microsoft External Staff Moderator
1 answer

OWA looks different and is unresponsive

Hey Community. Ever since the CVE released on May 14th, some of our users are opening outlook view to this: The left pane is mostly unresponsive and honestly having more than 5 users have this issue is appalling alone. Anyways, If you guys have any…

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.

8,168 questions
asked 2026-05-17T04:34:53.4066667+00:00
Moshiur (Moshiur Khan) 80 Reputation points
edited an answer 2026-05-17T08:27:11.15+00:00
Michelle-N 16,540 Reputation points Microsoft External Staff Moderator
2 answers

Exchange 2019 SSL certificate install

I could use help installing my Exchange 2019 SSL certificate. I have worked with MS support in the past to get this installed. They have always done it through Exchange powershell. I tried creating the request through the gui interface - opened the file…

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.

8,168 questions
asked 2026-05-13T18:50:44.09+00:00
Emilio Valentin 0 Reputation points
commented 2026-05-14T22:01:43.5333333+00:00
Hin-V 15,005 Reputation points Microsoft External Staff Moderator
3 answers

WARNING: Exchange can't connect to the Information Store service on server [Moderator note: personal info removed] .LOCAL. Make sure that the service is running and that there is network connectivity to the server.

I am running Two Exchange 2013 Servers with the last CU which was released by Microsoft on both nodes in DAG setup. Now, I have introduced a new single Exchange Server 2019 with CU14, which is not part of DAG. Because, all our mailboxes are already moved…

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.

8,168 questions
asked 2026-04-07T14:30:21.64+00:00
Mirza Irfan Anjum 45 Reputation points
commented 2026-05-14T21:55:37.1033333+00:00
Hin-V 15,005 Reputation points Microsoft External Staff Moderator
3 answers One of the answers was accepted by the question author.

exchange Active directory topology

Hi I have two domains in my forest. If I want to assign to one of the users in the second domain via email exchange, I will encounter the same error. please guide me. my error The call to Microsoft Exchange Active Directory Topology service on server…

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.

8,168 questions
asked 2021-05-11T10:05:20.75+00:00
navid Talesh 66 Reputation points
answered 2026-05-13T18:20:03.4433333+00:00
Mirza Irfan Anjum 45 Reputation points
2 answers

Outlook not connecting to the exchange server

Outlook is showing that I am connected to the exchange server but that indicator keeps switching to 'disconnected'. I cannot access email on pc, on phone through web.

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.

8,168 questions
asked 2026-05-12T13:16:54.76+00:00
john shinnick 0 Reputation points
commented 2026-05-13T10:47:00.8633333+00:00
Vergil-V 13,300 Reputation points Microsoft External Staff Moderator
1 answer

deleting a mailbox

i need help in deleting a service mailbox though I am not the primary owner.

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.

8,168 questions
asked 2026-05-08T11:48:52.7066667+00:00
Kaur, Surjeet 0 Reputation points
commented 2026-05-11T11:37:14.1233333+00:00
Vergil-V 13,300 Reputation points Microsoft External Staff Moderator
2 answers

BigFunnel errors migrating from Exchange 2016 (on-prem) to Exchange 2019/SE (on-prem)

I've restarted the search services, etc. Deleted and created new move requests. Tried the migration batch method. Cleared those and recreated. Mailbox moves just stall citing a BigFunnel error, Search isn't up to date.

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.

8,168 questions
asked 2026-05-06T15:42:48.1366667+00:00
Stephen Lansing 0 Reputation points
commented 2026-05-07T22:53:38.1333333+00:00
Hin-V 15,005 Reputation points Microsoft External Staff Moderator
3 answers

What is causing EventID 2153 MSRepl

I was reviewing our Application logs on our 3 Exchange 2016 servers and came across the following error message. The log copier was unable to communicate with server 'Exchange1.Domain.com'. The copy of database 'MailDB03\Exchange1' is in a disconnected…

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.

8,168 questions
asked 2021-01-21T17:33:10.123+00:00
TRDx2 126 Reputation points
commented 2026-05-06T09:28:08.1466667+00:00
Adi Croitoru 0 Reputation points
2 answers

ManagementObjectNotFoundException when updating Exchange recipient via PowerShell

We are running Exchange in full hybrid mode. We only start up the on-prem Exchange Management (Exchange 2019 CU14) server when we need to do recipient maintenance. We have been running this way for about six years with no issues. The last time I needed…

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.

8,168 questions
asked 2026-04-30T19:12:21.59+00:00
Eric Logsdon 116 Reputation points
commented 2026-05-04T02:08:59.4966667+00:00
Dora-T 13,660 Reputation points Microsoft External Staff Moderator
2 answers

External Email Forwarding Blocked by Organization Policy (NDR 550 5.7.520)

User reported NDRs indicating failure of external email forwarding (Error: 550 5.7.520 – organization does not allow external forwarding). Upon verification in Outlook Web Access (OWA), no inbox rules or email forwarding settings were found configured or…

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.

8,168 questions
asked 2026-04-30T20:04:21.1133333+00:00
Mohd Ishaque 10 Reputation points
commented 2026-05-04T02:03:05.9466667+00:00
Dora-T 13,660 Reputation points Microsoft External Staff Moderator
2 answers

Exchange Management Shell RBAC Access Denied for Server

Hi On a 2019 Exchange server I have issues running the Management Shell, as it is started it throws an error related to RBAC: [AuthZRequestId=8a7b453d-47e2-468d-8f62-ffdd36a728dc][FailureCategory=AuthZ-CmdletAccessDeniedException] The user …

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.

8,168 questions
asked 2021-02-23T06:22:09.91+00:00
Jaap Hoetmer 11 Reputation points
commented 2026-05-02T00:33:08.3533333+00:00
V Suryanarayanan (CONVERGYS CORPORATION) 0 Reputation points Microsoft External Staff
3 answers

Exchange 2019 cannot display all user when add allowed sender in delievery management

Hi, In both exchange 2016 and 2019, when we try to add “Allowed sender” in the mailbox delivery management, it only can display 500 objects We tried to edit the web.config file to add a below lines but not works. It still display 500 user only …

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.

8,168 questions
asked 2022-05-23T06:51:26.913+00:00
Andy Chong 897 Reputation points
answered 2026-05-01T22:27:38.27+00:00
Michael Murillo Sr 0 Reputation points