Exchange Server
A family of Microsoft client/server messaging and collaboration software.
1,197 questions
0 answers
Changed Exchange 2019 DNS MX Records for Spam Filter Service and Exchange Active Sync Now Fails
We have an on-premises Exchange Server 2019. Everything was working fine until we got an external spam filtering service. We changed our MX records to point to the spam filtering service, and then the filtering service sends the emails to the Exchange…
asked 2024-07-26T17:06:51.5866667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(137.6, 69%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMA%3C/text%3E%3C/svg%3E)
Michael Adams
311
Reputation points
asked 2024-07-26T17:06:51.5866667+00:00
Michael Adams
311
Reputation points
0 answers
Changed Exchange 2019 DNS MX Records for Spam Filter Service and Exchange Active Sync Now Fails
We have an on-premises Exchange Server 2019. Everything was working fine until we got an external spam filtering service. We changed our MX records to point to the spam filtering service, and then the filtering service sends the emails to the Exchange…
asked 2024-07-26T17:00:45.2933333+00:00
Michael Adams
311
Reputation points
asked 2024-07-26T17:00:45.2933333+00:00
Michael Adams
311
Reputation points
0 answers
working with EWS webservice
the server is working, and I copied the code from MSDN https://learn.microsoft.com/en-us/exchange/client-developer/exchange-web-services/how-to-authenticate-an-ews-application-by-using-oauth#add-an-authentication-token-to-ews-requests But the response…
asked 2024-07-26T11:47:26.21+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(160, 41%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAA%3C/text%3E%3C/svg%3E)
Abdulqader Al-Jupeh
0
Reputation points
asked 2024-07-26T11:47:26.21+00:00
Abdulqader Al-Jupeh
0
Reputation points
0 answers
Exchange Server 2019 pulls 100% CPU on IIS Worker Process -MsExchangeMapiFrontEndAppPool
Hello, At an customer of ours we have an problem that on monday 08:00 the CPU is pulling 100% and Outlook is not workable on the clients. When we dive deeper in this issue we see that the IIS Worker Process is pulling this CPU, more specificly the…
asked 2024-07-26T07:58:26.18+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(243.2, 49%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELN%3C/text%3E%3C/svg%3E)
Lars Nijhuis - Lucas IT
1
Reputation point
edited a comment 2024-07-26T10:42:04.96+00:00
Andy David - MVP
145.6K
Reputation points MVP
2 answers
One of the answers was accepted by the question author.
Intermittent NullReferenceException in EWS Nuget Package
Hello! In my .NET application I use Microsoft.Exchange.WebServices 2.2.0 package to interact with the Exchange Server. I create the ExchangeService class and call the method: Folder.Bind(exchangeService, WellKnownFolderName.Inbox). Most of the time the…
asked 2024-07-22T08:31:04.09+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(140.8, 53%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EIK%3C/text%3E%3C/svg%3E)
Ihor Kuliiev
156
Reputation points
accepted 2024-07-26T09:44:08.4033333+00:00
Ihor Kuliiev
156
Reputation points
4 answers
Migrate Hybrid Exchange from 2010 to 2016
Hi, I am currently in the process of planning our Exchange migration from Exchange 2010 to Exchange 2016.. We use Exchange in a hybrid configuration. I am looking for some advice. We do not have any public folders. We have a single on prem domain and…
asked 2024-07-22T15:36:23.0966667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(28.799999999999997, 21%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EF%3C/text%3E%3C/svg%3E)
Franklin
0
Reputation points
commented 2024-07-26T09:33:59.0433333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(70.4, 18%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENM%3C/text%3E%3C/svg%3E)
Noah Ma-MSFT
2,340
Reputation points Microsoft Vendor
1 answer
How to identify custom settings before a CU upgrade?
I am preparing to update the latest CU. The instructions warn of backing up customized config files. Since I didn't set our server up originally, I really don't know how much customization has been done or where to look. Is this something you can help…
asked 2024-07-23T18:13:34.0866667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(240, 23%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAW%3C/text%3E%3C/svg%3E)
Arthur Wilson
0
Reputation points
commented 2024-07-26T09:20:37.9733333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(99.2, 91%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJZ%3C/text%3E%3C/svg%3E)
Jake Zhang-MSFT
3,510
Reputation points Microsoft Vendor
1 answer
RecipientStatus RESOLVER.GRP.Expanded; distribution list expanded
Hi. Exchange 2019. On-premise. There's a mailing list group. It has permission to receive mail from the Internet. Everything works, but one email didn't arrive. Timestamp : 7/24/2024 2:39:00 PM ClientIp : ClientHostname …
asked 2024-07-25T08:49:40.9133333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(304, 60%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Андрей Михалевский
2,891
Reputation points
edited an answer 2024-07-26T08:53:29.94+00:00
Jake Zhang-MSFT
3,510
Reputation points Microsoft Vendor
1 answer
One of the answers was accepted by the question author.
How to get an Exchange server evaluation version
How to get Exchange Server Evaluation
asked 2024-07-25T12:22:29.74+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(224.00000000000003, 33%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPD%3C/text%3E%3C/svg%3E)
Philippe DELESTRAS
20
Reputation points
accepted 2024-07-26T07:38:37.6066667+00:00
Philippe DELESTRAS
20
Reputation points
1 answer
Google is rejecting email
I have a power automate flow on my sharepoint xxx.onmicrosoft.com. On one ste I have a task to send email. For all email providers it works, just mx.google.com is responding __[2a01:111:f403:c200::1] The IP address sending this message does not have a…
asked 2024-07-17T18:23:14.8966667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(131.20000000000002, 84%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EEF%3C/text%3E%3C/svg%3E)
EfectFit Fitness
5
Reputation points
answered 2024-07-25T17:57:59.9566667+00:00
Andy David - MVP
145.6K
Reputation points MVP
2 answers
One of the answers was accepted by the question author.
SMTP AUTH Modern authentication in managed devices
Hello, Our application is distributed by admin to numerous devices, which are then expected to function based on input policy/configuration. With deprecation of Basic login in SMTP Im having hard time finding correct new way of setting up local email…
asked 2023-01-25T14:12:38.1566667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(67.2, 82%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMT%3C/text%3E%3C/svg%3E)
Marek Tomčo
25
Reputation points
answered 2024-07-25T17:51:19.81+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(64, 8%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETA%3C/text%3E%3C/svg%3E)
Tim Alvey
1
Reputation point
1 answer
One of the answers was accepted by the question author.
Question about IMAP protocols
Hello. Why does the documentation advise to use port 993 SSL when today, 143 TLS is considered more secure and more modern implementation ? https://learn.microsoft.com/en-us/exchange/clients/pop3-and-imap4/configure-imap4?view=exchserver-2019
asked 2024-07-24T13:31:22.0133333+00:00
Андрей Михалевский
2,891
Reputation points
accepted 2024-07-25T08:14:37.51+00:00
Андрей Михалевский
2,891
Reputation points
1 answer
One of the answers was accepted by the question author.
Emails with incorrect encoding
Hello. Exchange 2016 on-premise. Are there any mechanisms that can understand the reason why an incorrectly encoded message arrives ? My text turns into ������� � ������������ ������, �� ���������� ������ � ��������, �������� � ������ � ������ ��
asked 2024-07-22T14:06:14.18+00:00
Андрей Михалевский
2,891
Reputation points
edited a comment 2024-07-24T13:24:16.35+00:00
Андрей Михалевский
2,891
Reputation points
1 answer
One of the answers was accepted by the question author.
Server Relocation during Exchange Online Operation
I am using a translator, so I apologize if I am wrong. Currently, the name server for the domain name acquired at Name.com is designated to Xserver, and the record designated by Exchange Online is registered as a DNS record on the Xserver side for…
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(12.8, 93%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EK%3C/text%3E%3C/svg%3E)
1 answer
Exchange On Prem shared smtp domain loop
We have 2 AD domains with 2 exchange 2016 organization which shares the domain.com smtp domain, we're migrating from domainA to domainB. We set up the 2 exchange domains to share the domain.com by adding it as accepted domain on both the organization as…
asked 2024-07-12T14:35:39.34+00:00
Stefano Colombo
221
Reputation points
commented 2024-07-24T06:14:15.6+00:00
Jake Zhang-MSFT
3,510
Reputation points Microsoft Vendor
1 answer
Exchange Database are in unknow state (Exchange server 2019)
I have two Exchange servers (EXG-01 and EXG-02) configured with a Database Availability Group (DAG). In this setup, DB01 and DB02 reside on EXG-02, while DB03 and DB04 are located on EXG-01. Unfortunately, EXG-01 has crashed and is currently…
asked 2024-07-22T05:00:07.3366667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(35.2, 37%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EP%3C/text%3E%3C/svg%3E)
Parsian02
20
Reputation points
commented 2024-07-24T05:54:29.6+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(137.6, 20%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMH%3C/text%3E%3C/svg%3E)
Mike Hu-MSFT
2,490
Reputation points Microsoft Vendor
3 answers
Migrating active directory and pointing exchange to new active directory
Hi, We have migrated to the windows 2019 active directory server. I have an exchange server 2019 which defaultGlobalCatalogsForAllForests, DefaultPreferredDomainControllers, DefaultConfigurationDomainControllersForAllForests are still pointing to the old…
asked 2023-03-28T09:50:43.4566667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(28.799999999999997, 64%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Amir
0
Reputation points
commented 2024-07-23T21:26:19.2266667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(83.2, 81%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Евгений Котляревский
21
Reputation points
1 answer
How to recover deleted calendars
I deleted a calendar I no longer needed that I couldn't see was tethered to other ones that I do need. Is there any way I can recover those calendars? I saw there's a way to right click calendars to move or copy them and I was able to see the calendars I…
asked 2023-03-08T21:03:58.39+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(70.4, 16%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETW%3C/text%3E%3C/svg%3E)
Tiffany Wood
20
Reputation points
commented 2024-07-23T12:34:29.3666667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(76.8, 82%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJM%3C/text%3E%3C/svg%3E)
Janet Miller (Gas Distribution - 5P)
0
Reputation points
2 answers
Decommissioning of Exchange server 2016 version 15.1 from Coexistence environment
We have a exchange servers 2016 and 2019 in a coexistence environment. All our mailboxes are on O365. We use the On-prem Exchange as SMTP server. Now we are facing some issues with 2016. Hence we are planning to decommission the Exchange server 2016…
asked 2024-07-03T20:50:31.32+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(99.2, 11%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENM%3C/text%3E%3C/svg%3E)
Nasir Mohammad
0
Reputation points
commented 2024-07-22T06:02:49.67+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(44.800000000000004, 43%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBJ%3C/text%3E%3C/svg%3E)
Bruce Jing-MSFT
2,910
Reputation points Microsoft Vendor
1 answer
How to disable NTLMv1 for Exchange 2016.
Hello, We are disabling NTLMv1 and enabling only NTLMv2 in our environment. We have already configured the LAN Manager Authentication Level setting on our Exchange Server 2016 server to 'Send NTLMv2 response only\refuse LM & NTLM'. However, do we…
asked 2024-07-10T11:25:47.4266667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(156.8, 50%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERA%3C/text%3E%3C/svg%3E)
raj a
316
Reputation points
commented 2024-07-22T06:00:21.7866667+00:00
Bruce Jing-MSFT
2,910
Reputation points Microsoft Vendor