1,603 questions with Exchange | Exchange Server | Other tags

Sort by: Updated
Updated Created Answers
6 answers

Problem - Exchange 2019 CU15 & Modern Auth through on-prem ADFS

Hi, I am trying to configure Modern Auth with my up-to-date Exchange 2019 CU15 DAG.  Please note that I want to authenticate through my on-prem ADFS and not Office 365.  Outlook version is Microsoft® Outlook® for Microsoft 365 MSO (Version 2506 Build…

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.

1,603 questions
asked 2025-08-05T05:27:36.2966667+00:00
Romain 0 Reputation points
commented 2026-03-12T12:58:26.8133333+00:00
ameer abu shanab 0 Reputation points
6 answers

Exchange 2019 onprem: rights problems with Get-ExchangeDiagnosticInfo

According to MS we need to use Get-ExchangeDiagnosticInfo to check Back Pressure. I want to automate that with a script running in task scheduler. Understanding back pressure | Microsoft Learn The user must have one of these roles: Get-ManagementRole…

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.

1,603 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.

8,121 questions
asked 2023-06-02T09:07:55.2966667+00:00
TRÖSTER Joachim 6 Reputation points
answered 2026-03-12T10:29:45.7933333+00:00
Андрей Будников 0 Reputation points
2 answers

Outlook Mobile App authentication error Exchange 2019

Hi, Some of our Exchange 2019 users are experiencing an issue while configuring their Outlook profile on mobile phones. The setup process gets stuck at "Authentication in progress", and they receive a toast notification stating: "An error…

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.

1,603 questions
asked 2026-03-02T07:31:10.41+00:00
Ali Raza 0 Reputation points
commented 2026-03-11T08:18:04.5833333+00:00
Steven-N 21,805 Reputation points Microsoft External Staff Moderator
2 answers

Exchange SE CAL requirement satisfied with M365 E3 license?

For upgrading to Exchange SE clients, need to purchase Exchange server and CALs with SA in an Open Volume agreement. If a client has an M365 E3 subscription under CSP for all users using Exchange, will that license satisfy the Exchange CAL with Software…

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.

1,603 questions
asked 2025-10-17T14:39:12.9033333+00:00
Anonymous
edited an answer 2026-03-11T02:15:36.67+00:00
Teddie-D 12,925 Reputation points Microsoft External Staff Moderator
7 answers

The problem with receiving mail from an external domain

Good afternoon, mail is configured on office 365 servers. From domain addresses kmg.kz The mail arrives with a delay of up to 1000 minutes. What can be done?

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.

1,603 questions
asked 2026-02-15T08:38:51.9+00:00
Arman Bukuev 0 Reputation points
edited the question 2026-03-10T08:26:55.46+00:00
Alexandra Tanasescu 0 Reputation points Moderator
2 answers

caso [Nota del moderador: información personal eliminada]

Tenemos problemas para enviar correos a usuarios de microsoft, nuestro proveedor de hosting nos esta ayudando pero quería saber si podemos acelerar el proceso

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.

1,603 questions
asked 2026-03-09T17:33:00.8833333+00:00
José Morales 0 Reputation points
edited an answer 2026-03-09T23:45:36.94+00:00
Vergil-V 10,340 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Hybrid Migration from Exchange 2013 CU23 om-prem to Microsoft 365

Greetings. We have an Exchange Server 2013 CU23 on Windows Server 2012. We acquired 40 licenses for Microsoft 365, and I would like to maintain the on-premises server to communicate with other users that we don't want to migrate to the cloud. In this…

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.

1,603 questions
asked 2026-03-07T15:04:33.1166667+00:00
Victor Ruiz 20 Reputation points
accepted 2026-03-07T19:24:49.6066667+00:00
Victor Ruiz 20 Reputation points
1 answer One of the answers was accepted by the question author.

Uninstall Exchange SE while Exchange 2019 is present in Domain.

Greetings, In an attempt to bring our organization up to date, I created a new 2025 server and installed Exchange SE; however, after the initial reboot I am not able to run Exchange Management Shell. Therefore, in order to not have our clients be…

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.

1,603 questions
asked 2026-03-05T19:48:28.92+00:00
CoP 25 Reputation points
commented 2026-03-06T05:06:31.1833333+00:00
Vergil-V 10,340 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

is it safe to remove Exchange Trusted Subsystem group from Administrators group?

Hi all, We have Exchange server 2019 and we found it is member of AD built in Administrators group. Is it safe to remove Exchange Trusted Subsystem group from AD Administrators group? Best regards, Abdu;-Malik

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.

1,603 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.

8,121 questions
Exchange | Other
Exchange | Other

A powerful email and collaboration platform developed by Microsoft, designed to support enterprise-level communication and productivity. Miscellaneous topics that do not fit into specific categories.

897 questions
asked 2023-02-05T20:59:47.3466667+00:00
Abdul-Malik 20 Reputation points
answered 2026-03-05T14:09:19.1533333+00:00
Me&Me 0 Reputation points
1 answer

Archive Folder unavailable to portable users

Hey Community, We have an Exchange Server environment and recently set up an archiving server. We are able to access the archive from Outlook Web just fine but the folder does not seem to show up in the outlook desktop app nor the mobile app. Mail flow…

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.

1,603 questions
asked 2026-03-04T05:23:27.62+00:00
Moshiur (Moshiur Khan) 80 Reputation points
commented 2026-03-05T06:13:55.6533333+00:00
Vergil-V 10,340 Reputation points Microsoft External Staff Moderator
2 answers

Delivery errors

Hi, My senders keeps getting repeated delivery error reports from my mail system. One of the trusted senders sent me “If you receive this message, then it  means that something is  wrong. While you are  obviously able to receive mail,  your mail  system…

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.

1,603 questions
asked 2026-03-03T12:12:26.7433333+00:00
Haytham Fathy 0 Reputation points
edited the question 2026-03-04T14:46:20.5833333+00:00
Matthew-P 11,575 Reputation points Microsoft External Staff Moderator
3 answers One of the answers was accepted by the question author.

No podemos enviar correos a hotmail desde nuestro dominio error 451 4.7.650 the mail server has been temporarily rate limited due to ip reputation

Verificamos que las IPs no están en una black list, tenemos problemas para enviar correos desde nuestra organización y solo a hotmail, se envían correos a diferentes dominios sin problemas. No hemos cambiado nada y comenzamos a tener estos problemas hace…

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.

1,603 questions
asked 2026-03-04T10:45:33+00:00
CNV 40 Reputation points
accepted 2026-03-04T12:04:54.3066667+00:00
CNV 40 Reputation points
2 answers One of the answers was accepted by the question author.

Buggy TZID values used in Exchange shared calendar file (ICS)

User can share their Exchange calendar as ICS file. However, the time zones in the file (TZID) are not put together correctly by Microsoft. In the iCalendar (RFC 5545) specification, TZID can be any string identifier, but it only works reliably if: …

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.

1,603 questions
asked 2025-09-15T08:20:24.2733333+00:00
Sulev Reisberg 25 Reputation points
commented 2026-03-02T14:47:22.29+00:00
Kudos-Ng 14,515 Reputation points Microsoft External Staff Moderator
1 answer

OWA Exchange 2019 500 Internal Server Error

Hello everyone and thanks for the help in advance. I am running an onsite Exchange 2019 Server on Windows Server 2022. For no apparent reason, clients are now attempting to login and are receiving a 500 Internal Server Error at the login screen. I…

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.

1,603 questions
asked 2026-02-28T12:43:28.0966667+00:00
Kmcnet 1,356 Reputation points
answered 2026-02-28T12:43:48.48+00:00
Q&A Assist
2 answers

Move MS Exchange from Godaddy directly to Microsoft

What is the step by step process to move my MS Exchange account from Godaddy to Microsoft directly?

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.

1,603 questions
asked 2026-02-23T19:26:43.5833333+00:00
Real Search 0 Reputation points
commented 2026-02-26T10:24:02.5533333+00:00
Vergil-V 10,340 Reputation points Microsoft External Staff Moderator
2 answers

Cannot connect to my Exchange server

When I try to set up Outlook, it won't let me connect to the Exchange servers I have at Network Solutions, and instead sends me off to Office.com

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.

1,603 questions
asked 2026-02-23T23:04:39.9833333+00:00
eric Hawley 0 Reputation points
commented 2026-02-25T02:47:00.04+00:00
TiNo-T 11,770 Reputation points Microsoft External Staff Moderator
4 answers

Exchange Deployment Assistant

Hello, I would like to report that the Exchange Deployment Assistant is unavailable. I would like to know if this is a temporary or permanent…

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.

1,603 questions
asked 2026-02-10T13:44:06.6066667+00:00
Mijo Fett 5 Reputation points
commented 2026-02-23T16:06:22.19+00:00
Mijo Fett 5 Reputation points
4 answers

ADFS Exchange 2019 On prem Configuration

Anyone willing to help to get this work, been battling for weeks After deploying ADFS, owa and ECP pages cant load https://adfs.domain.com/adfs/ls/idpinitiatedsignon.aspx page loads request credentials but https://domain.com/adfs/ls/ issues error : Error…

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.

1,603 questions
asked 2026-02-13T08:15:01.3633333+00:00
Lucky Gumboh 0 Reputation points
commented 2026-02-23T09:32:11.1133333+00:00
Kudos-Ng 14,515 Reputation points Microsoft External Staff Moderator
3 answers One of the answers was accepted by the question author.

Connectivity issue with AS400 to Exchange server

We are experiencing issues with a server trying to connect to Microsoft exchange and connector of AS400 The software that's on the connector AS400 has an email address, it should go out and check that email address and its we set it as sharedmailbox but…

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.

1,603 questions
asked 2026-02-19T21:16:38.8133333+00:00
Montoya, Mabelle 160 Reputation points
accepted 2026-02-20T11:24:53.2166667+00:00
Montoya, Mabelle 160 Reputation points
1 answer

Decommission on-premise exchange 2016 servers

Currently in a hybrid connection to EXO and all on-premise mailboxes have been moved to EXO. Need step by step directions on how to decommission 4 exchange servers with DAG's and Witness server

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.

1,603 questions
asked 2026-02-18T21:26:31.06+00:00
Phillip Guthrie 0 Reputation points
commented 2026-02-20T06:10:47.67+00:00
Jack-Bu 6,675 Reputation points Microsoft External Staff Moderator