Spiceheads,

I have recently been appointed to manage a client’s 365 tenant. It’s a small business with only about 12 staff members. It’s a normal Microsoft 365 subscription that includes Exchange.

Another IT company set this up, but I am now in charge of managing it.

Here is the problem. As soon as I do anything in the Exchange Admin Center and apply the settings, the entire Exchange Admin Center becomes unresponsive. For example, if I go to Mailboxes, it will not display any mailboxes. It says “When you add users with mailboxes, they’ll appear here.” If I try to create a mail contact, it will give me an error message and fail to create it.

This has happened several times in the past. The last time the Exchange Admin Center was unresponsive for three days! I opened a ticket with Microsoft. They were unable to determine the problem. It started working again after three days and they just closed the case. They said it looks like it was taking a lot time to provision something.

YES - My account is Global Admin
I tried different web browsers, even with in in-private session
I tried it outside of my office
The previous IT company experienced the same thing

Today, I just created a simple distribution group and added 5 members.
Any suggestions?

Answer from jeffbrubaker on community.spiceworks.com
🌐
Microsoft Learn
learn.microsoft.com › en-us › exchange › exchange-admin-center
Exchange admin center in Exchange Online | Microsoft Learn
The Exchange admin center (EAC) is a modern, web-based management console for managing Exchange Online. The design of the EAC in Exchange Online aligns with the overall Microsoft 365 admin experience.
🌐
Microsoft
aka.ms › admincenter
Microsoft 365 Admin Center portal
We cannot provide a description for this page right now
Discussions

Exchange admin center
Admins may be unable to access the Exchange admin center (EAC) Issue ID EX1051697 More on reddit.com
🌐 r/sysadmin
41
46
April 9, 2025
Problem with Exchange Admin Center
Another IT company set this up, but I am now in charge of managing it. Here is the problem. As soon as I do anything in the Exchange Admin Center and apply the settings, the entire Exchange Admin Center becomes unresponsive. For example, if I go to Mailboxes, it will not display any mailboxes. ... More on community.spiceworks.com
🌐 community.spiceworks.com
10
6
April 24, 2025
What is the difference between O365 admin center vs exchange admin center.?
Even though i work on it everyday , i couldn’t answer a simple question the other day. What is the difference between O365 admin center vs exchange admin center.? May be you guys can give answer? More on community.spiceworks.com
🌐 community.spiceworks.com
10
6
September 20, 2019
Exchange Admin Center General Functionality Issues

You're not the only one. It happens to me too. Usually when I need to perform a message trace and I type in the full URL and it just spins and spins and spins. I wonder if it has anything to do with me being signed into multiple Microsoft accounts in the same browser session (but different tabs)... Don't know. I just know that I use https://outlook.office365.com/ecp more often because it still works more often than https://admin.exchange.microsoft.com...

More on reddit.com
🌐 r/Office365
1
2
June 25, 2019
🌐
M365 Admin
m365admin.handsontek.net › microsoft-exchange-admin-center-new-url
Microsoft Exchange admin center: New URL - M365 Admin
October 9, 2024 - As part of our ongoing commitment to providing a more integrated and seamless experience for our customers, we are pleased to announce a new URL for the Microsoft Exchange admin center (EAC): https://admin.cloud.microsoft/exchange.
🌐
Microsoft Office
config.office.com
Microsoft 365 Apps admin center
We cannot provide a description for this page right now
🌐
AC Support
knowledge-base.acsupport.cloud › knowledge base › microsoft › microsoft 365
New Exchange admin center in Exchange Online
For more information, see Permissions in Exchange Online. Sign in to Microsoft 365 or Office 365 using your work or school account. In the left navigation pane, navigate to Admin centers > Exchange.
Find elsewhere
🌐
TechTarget
techtarget.com › searchwindowsserver › tip › Get-to-know-the-new-Exchange-admin-center-features
Get to know the new Exchange admin center features | TechTarget
September 28, 2021 - The Exchange admin center (EAC) is the web-based management console administrators use to manage most aspects of the Exchange Online service, including mail flow rules, policies, permissions, alerts and reports.
🌐
Stellar Info
stellarinfo.com › home › how to access exchange admin center in all exchange server versions?
How to Access Exchange Admin Center in Exchange Server
October 7, 2025 - Summary: The Exchange Admin Center (EAC), introduced in Exchange Server 2013, is a web-based management console to manage Exchange Server. The EAC replaces the Exchange Control Panel (ECP) and Exchange Management Console (EMC), used in Exchange ...
🌐
Wondershare Recoverit
recoverit.wondershare.com › email-tips › exchange-admin-center.html
What is Exchange Admin Center (EAC) and how to login it
There are two broad ways to access EAC for Exchange Server. Way 1: Sign in to your Microsoft 365 or Office 365 account > Admin Centers > Exchange.
🌐
Winfr
winfr.org › home › office files recovery
Office 365 Exchange Admin Center: A Comprehensive Guide
July 7, 2025 - A web-based management console for administering Exchange Online in Office 365. Provides centralized control over email settings, security, and compliance. Enables administrators to manage mail flow, recipients, and policies.
🌐
AC Support
knowledge-base.acsupport.cloud › knowledge base › microsoft › microsoft 365
Classic Exchange admin center in Exchange Online
For more information, see Permissions in Exchange Online. Sign in to Microsoft 365 or Office 365 using your work or school account, and then choose the Admin tile. In the Microsoft 365 admin center, choose Admin centers > Exchange.
🌐
Netwrix
netwrix.com › en › resources › blog › how-to-manage-exchange-online-with-admin-center
Manage Exchange Online with Exchange Admin Center
April 21, 2025 - But later, in 2021, Microsoft officially separated the Exchange Online Admin Center from the Microsoft 365 Admin Center; in fact, Microsoft has provided many admin center web consoles for different services, e.g., Exchange Online, SharePoint Online, and Teams, yet it keeps the users and group management, along with other features, within the Microsoft 365 Admin Center.
🌐
Nevelexlabs
nevelexlabs.com › labs_adapters › microsoft-365-exchange
Microsoft 365 Exchange Admin Center – Nevelex Labs
Microsoft 365 Exchange Admin Center plugin provides the ability to manage mail flow rules (transport rules) shown within the MS365 Exchange Admin Center and manage a mailbox’s inbox rules.
🌐
Medhacloud
medhacloud.com › blog › microsoft-365-admin-centerlogin-urls
Microsoft 365 admin center – All admin center Login URLs
April 25, 2025 - ... The Exchange Admin Center is your go-to portal for managing email settings in Exchange Online. It replaced the older Exchange Control Panel (ECP) and aligns with the modern Microsoft 365 admin experience.
🌐
Intelligink
intelligink.com › home › lesson 7: the exchange admin center
Lesson 7: The Exchange Admin Center - Intelligink
April 3, 2019 - If you aren’t familiar, now you know what it is 🙂 This is where all things related to your email hosting are configured. This includes mailboxes, contact lists, exchange admin security, compliance settings, malware and spa settings, mobile email management, mail rules, and hybrid email management to name a few.
🌐
Microsoft Community Hub
techcommunity.microsoft.com › microsoft community hub › communities › products › exchange › exchange team blog
New URL for Exchange admin center (EAC) in Exchange Online | Microsoft Community Hub
October 9, 2025 - Today, we are announcing that we are introducing a new URL for accessing the Exchange admin center (EAC) in Exchange Online - https://admin.cloud.microsoft/exchange. This new URL is live and available for use now.
🌐
YouTube
youtube.com › watch
Microsoft 365: Introduction to Exchange Admin Center - YouTube
In This Video:Get started with the Exchange Admin Center (EAC), the web-based management console for Exchange Online in Microsoft 365.What You'll Learn:What ...
Published   April 19, 2025
🌐
Deltek
help.deltek.com › Product › Vantagepoint › 5.5 › DVP_UTIL_CONN_ADMIN_Mass_Deploy_Using_EAC.html
Mass Deploy Using Microsoft Exchange Admin Center
Use Microsoft Exchange Admin Center to mass deploy the Connect Add-in to a group using Office 365 or the on-premises Exchange Server. You can automate this process through Exchange Management Powershell scripts.