8,198 questions with Exchange | Exchange Server | Management tags

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Email being spoofed Exchange 2019

Exchange 2019. I have an email coming in that appears to be from ******@contoso.com. When you hit reply, the email address is now ******@phisherson.com. In the email itself, you click the ******@contoso.com email address, it shows up as that user's email…

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.

8,198 questions
asked 2026-08-25T16:35:20.56+00:00
Susan Dodds 421 Reputation points
commented 2026-08-26T21:01:01.7466667+00:00
Chris-D 1,000 Reputation points Independent Advisor
1 answer

Exchange 2019 CU14: Server-side search is very slow or fails after mailbox migration from Exchange 2013

Hello, We are troubleshooting a server-side search performance issue after migrating mailboxes from Exchange 2013 to Exchange 2019. Environment Exchange 2013 CU23 still exists in coexistence. Exchange 2019 CU14, build 15.2.1544.36. Two Exchange 2019…

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.

8,198 questions
asked 2026-08-25T10:06:36.0566667+00:00
Vad4 0 Reputation points
edited the question 2026-08-25T17:52:10.4333333+00:00
Vad4 0 Reputation points
6 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.

8,198 questions
asked 2022-06-27T12:56:03.48+00:00
Fugazi 21 Reputation points
answered 2026-08-24T08:54:20.6466667+00:00
Dion Pennings | MDEX 0 Reputation points
2 answers One of the answers was accepted by the question author.

How to Authenticate Exchange Server(On-Premise) with CBA using java8

Hi everyone, We are currently migrating from Exchange Online to Exchange On-Prem and want to implement pure Certificate-Based Authentication (CBA). Following the official Microsoft documentation…

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.

8,198 questions
asked 2025-10-09T08:01:34.2+00:00
Gourav Kumar 60 Reputation points
edited a comment 2026-08-19T08:10:32.66+00:00
Gourav Kumar 0 Reputation points
1 answer

Add owner to distribution list

I own several distribution lists and would like to add an additional owner; however, when I try to do so, I keep receiving an error message.

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.

8,198 questions
asked 2026-08-18T19:55:44.1266667+00:00
SCARBOROUGH, Helen 0 Reputation points
answered 2026-08-18T20:39:38.4133333+00:00
Hendrix 780 Reputation points Independent Advisor
2 answers One of the answers was accepted by the question author.

Exchange 2019 Certificate Request not generating TXT file

Exchange 2019 Cu14. Not getting the text file for my certificate request to send to the CA. Pending request is showing up in the EAC but can't do more with it in the EAC in Cu14. Folder is shared and allows access to Exchange Trusted…

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.

8,198 questions
asked 2026-08-15T11:38:33.8366667+00:00
Susan Dodds 421 Reputation points
accepted 2026-08-15T11:49:34.05+00:00
Susan Dodds 421 Reputation points
2 answers

Renewing SSL on Exchange 2019

I have a godaddy SSL. I'm doing my first renewal of the certificate. Do I need to do a certificate request from the Exchange server to make the certificate or can I use the one that godaddy made for me without a certificate request? The SSL I'm replacing…

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.

8,198 questions
asked 2026-08-14T03:14:20.8433333+00:00
Susan Dodds 421 Reputation points
edited an answer 2026-08-14T04:02:02.02+00:00
Dora-T 380 Reputation points Independent Advisor
1 answer

Hosted outlook mailbox keeps getting full,

Hello all , i have a one user who have 2 mail boxes , and one of the mail box keeps getting Full all the time , so far we did 5 times to do auto-archive , not affecting , we remove the profile and add one more time , not affecting , we generate a…

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.

8,198 questions
asked 2026-08-12T19:52:04.4133333+00:00
Yogesh Zanzibarwala 0 Reputation points
edited an answer 2026-08-12T20:19:24.2433333+00:00
Ivory 990 Reputation points Independent Advisor
1 answer

Exchange server SE issue, single email received mutiple times

hi we have just upgraded to Exchange Sever SE from Exchange server 2019 we are facing an issue regarding the single email received multiple time for some users. header shows the different Message_ID for email with same subject. we have recently installed…

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.

8,198 questions
asked 2026-08-03T09:28:08.0066667+00:00
Usman 0 Reputation points
edited an answer 2026-08-10T04:13:04.28+00:00
Kien 895 Reputation points Independent Advisor
1 answer

exchange email help

several exchange emails came on my inbox and will not delete??

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.

8,198 questions
asked 2026-08-07T22:49:55.6+00:00
Kay Vick 0 Reputation points
commented 2026-08-08T21:25:49.2+00:00
Ivory 990 Reputation points Independent Advisor
1 answer One of the answers was accepted by the question author.

Exchange HCW using 2 Exchange 2016 edge servers (stmp1.domain.com and smtp2.domain.com)

Hi All, Looking for some Exchange hybrid configuration wizard guidance. Scenario: EWS published using hybrid.domain.com 2x Edge Servers configured using dedicated FQDNs - edge1.domain.com and edge2.domain.com If I want high availability for SMTP/Edge…

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.

1,645 questions
Exchange Online
Exchange Online

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

7,379 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.

8,198 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.

2,453 questions
asked 2023-01-11T10:53:10.8+00:00
Azhar Pasha Syed 40 Reputation points
accepted 2026-08-07T01:37:06.96+00:00
Azhar Pasha Syed 40 Reputation points
3 answers

Duplicates are being imported

Hello, I am using the New-MailboxImportRequest to import .PST files into existing mailboxes. These mailboxes have emails in them that are also included in the .PST file being imported. The import request completes successfully, some needing the…

Exchange Online
Exchange Online

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

7,379 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.

8,198 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.

2,453 questions
asked 2021-06-22T01:42:59.563+00:00
LeighHarding 1 Reputation point
answered 2026-07-31T14:31:46.2666667+00:00
Ted Mittelstaedt 61 Reputation points
2 answers

Address List browsing fails when list contains more than 51 objects — Exchange Server 2019

Address List browsing fails when list contains more than 51 objects — Exchange Server 2019 Summary Browsing any address list in the directory fails when the list contains more than 51 recipients. Lists with 51 or fewer objects render correctly. ANR-based…

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.

8,198 questions
asked 2026-07-29T18:04:51.93+00:00
Sergey 45 Reputation points
answered 2026-07-30T00:42:41.78+00:00
Hani-Ng 13,470 Reputation points Microsoft External Staff Moderator
2 answers

Installation of Exchange with failed outlook connectivity

Dear community. I've installed Exchange server on my lab on a Hyper-V machine. At first all but a few services did not start. As my home lab is major slow, I take it that it is because of startup speed and dependicies. After I leave the VM start and…

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.

8,198 questions
asked 2026-07-11T21:47:29.5633333+00:00
Bjarne Petersen 20 Reputation points
edited a comment 2026-07-29T12:37:37.56+00:00
Bjarne Petersen 20 Reputation points
2 answers

How to update Exchange Delegation Federation Certificate in Exchange SE

Currently running Exchange SE and I need to update our Exchange Delegation Federation Certificate. I am seeing links and documentation that points to Exchange 2013 steps. Are these steps still valid for Exchange SE?

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.

8,198 questions
asked 2026-01-07T18:41:37.8166667+00:00
Jason Earhart 0 Reputation points
commented 2026-07-28T01:58:57.4666667+00:00
Hani-Ng 13,470 Reputation points Microsoft External Staff Moderator
1 answer

change exchange storage limit

getting a message warning that email storage is full

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.

8,198 questions
asked 2026-07-24T15:12:42.85+00:00
office angelescollision 0 Reputation points
edited an answer 2026-07-24T19:36:38.77+00:00
Hin-V 16,830 Reputation points Microsoft External Staff Moderator
2 answers

I can't modify the members of a group in Exchange Admin Center

Message I received when I try to modify the members of a group: Failed to update members Error: Response Content is Null

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.

8,198 questions
asked 2026-05-29T11:48:07.6766667+00:00
Alfieri, Lea 0 Reputation points
commented 2026-07-21T15:10:34.44+00:00
Murray, Emily 0 Reputation points
2 answers One of the answers was accepted by the question author.

Exchange is appending numbers to DL

Hi All i am using exchange2016 hybrid environment, i have created distribution list in exchange onprem by name Test Group. But in AD i can see the group name as Test Group-396684025 in Group Name(pre-windows 2000). This is happening to all the…

Exchange Online
Exchange Online

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

7,379 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.

2,453 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.

8,198 questions
asked 2021-04-18T23:13:00.877+00:00
Glenn Maxwell 14,186 Reputation points
answered 2026-07-20T11:50:50.3733333+00:00
swey 11 Reputation points
1 answer

Images are not shown in OWA (Chrome, Firefox), but are shown in Outlook for Desktop

Exchange Server 2019 CU11 OWA has been experiencing issues for over two weeks, where inline images do not display, and the Sign Out button is non-functional in Chrome, Edge, and Firefox, while Outlook Desktop, ECP, mail flow, and the DAG operate…

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.

8,198 questions
asked 2026-07-12T05:59:11.3166667+00:00
Engr. Rizwan Miran Baig 0 Reputation points
answered 2026-07-12T07:56:24.4566667+00:00
Teddie-D 19,760 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Exchange 2016: tarpit event in SMTP-logs

Hi! We have an Exchange 2016 server with some custom receive connectors. Also we have our enternal application which send mail messages via one of these receive connectors. And we have an issues from application, not all messages are sent the first…

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.

8,198 questions
asked 2026-07-06T14:14:22.1833333+00:00
Евгений Котляревский 81 Reputation points
edited a comment 2026-07-10T10:47:58.9066667+00:00
Michelle-N 20,730 Reputation points Microsoft External Staff Moderator