Exchange Server Development

Connect-OrganizationAddInService using Entra ServicePrincipal ID

I am trying to find if someone has successfully done this, basically automatize the deployment of an Add-in to Office 365 Client Secret: "1111111111111111111" (This is a secret that should be protected and not shown, I am having a look how to…

Trying to setup an Azure AD app registration for email scanning but the client uses an on-prem exchange server for mailboxes

I am building support for OAuth 2.0 authentication for an email scan that my app performs. The idea of this scan is that a user can provide the credentials to gain access to the account and my app can store the access tokens and obtain access at any time…

ExchangeService.findItems call fails outlook.office365.com:443 failed to respond

Hi Team, We have integrated to exchange server (using EWS ews-java-api-2.0) in our java app. Our customer facing issue in production env when our app try to connect to exchange server and read incoming mail. Customer account klantenservice@telesur.sr is…

Connect-Exchange Online (Error while sending the request)

Hello, I'm getting the below Error while connecting to Exchange Online (PowerShell Script) when called from .Net Application. #Import-Module ExchangeOnlineManagement #Connect-ExchangeOnline -Credential $Creds An error occurred while…

O365 EWS w/ Impersonation UploadItems worked March 2024 - now 'access denied' error. All other features work.

I spent quite a few weeks earlier this year writing a PowerShell utility to copy mail between users in a O365 Tenant (including the ability to place copied mail in a unique 'root' folder tree). After much trial and error I had a working script that did…

How do I automatically create an organisation chart on Microsoft Visio by importing data from Microsoft Azure active directory?

Microsoft Azure Active Directory --> Microsoft Visio If I try and import the data, it states: "Unable to read names fro your Microsoft Exchange Server directory."

EWS FindFolder returns a different FolderId than GetFolder

While troubleshoothing an issue with our app we encountered this issue. We use FindFolder beginning with publicfoldersroot to load a list of folders. When accessing one of these folders we use a GetFolder request with the folderid. The returned…

Using Azure AD APP for Add-DistributionGroupMember fails with domain forest error inside prod.outlook.com? EXO V2

I wrote a script to synchronize distribution group members with a database. I think I set up my Azure AD application properly; it has API permission Exchange.ManageAsApp and role Exchange Administrator. I'm connecting like Connect-ExchangeOnline -AppId…

Fidelity active pro trader will not load due to extention error

I have tried multiple ways to download the fidelity active pro trader on my new laptop with no success. The picture states the issue and google hasn't helped me resolve this so I'm open to any help. Thank you all

All users unable to send and receive email after shut down the Exchange Server 2013

We are upgrading the Exchange server 2013 to 2019, but we already setup 1 new Exchange server 2019 and migrated all user mailboxes from Exchange 2013 to 2019. Currently we are planning to decommission Exchange server 2013 but while in testing phase…

Using Graph API to Retrieve Email

How can I use the Graph API to pull a newsletter from an email address and load it into my internal web application? I plan to initially retrieve the email from a mailbox using PowerShell, but I'm open to using PHP/AJAX or another method if that would be…

Multiple ECP & OWA link for different mail domains in 1 exchange server 2019

Hello Guys, Recently i setup a Microsoft Exchange 2019 in Windows server 2022. Now I configured 2 accepted domains in the exchange 2019 (which the mails are working fine inbound and outbound). abc.com - Ex. mail user: user@abc.com xyz.com - Ex. mail…

EWS Operation Item.Copy fails with 'full_access_as_app' permission

We have been using the EWS Item.Copy Operation for nearly 5 years. Since last week (Monday 26th of February 18:00 CET) this operation started failing for 2 of our 40 customers. No configuration has changed in Azure. App Secrets and API Permissions are…

How to fix the SMTP address has no mailboxes associated with it error in .net dll

We are using a .net dll to read an outlook emails using exchnager url and the version. It was working fine untill couple of days ago then I started to get failed to extract mail id from outlook - the stmp address has no mailboxes with it. Ther version is…

Exchange Server

Exchange Server

A family of Microsoft client/server messaging and collaboration software.

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.NET

.NET

Microsoft Technologies based on the .NET software framework.

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C#

C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

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Exchange Server Development

Exchange Server Development

Exchange Server: A family of Microsoft client/server messaging and collaboration software.Development: The process of researching, productizing, and refining new or existing technologies.

508 questions

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Exchange server 2016 and Exchange server 2019 coexistence

Hello, We have 4 exchange server 2016 and client connection for https/smtp relay happens via Load balancer. (for ex. connection to 'owa.abc.com'/'autodiscover.abc.com'/'smtp.abc.com' goes to VIP used for exchange 2016 servers) We have installed 4…

How to debug authentication problems in EWS?

Hi, I am developing a booking integration for Microsoft Exchange Hybrid configuration. I'm using EWS, becasue Graph doesn't support hybrid. For development, I have an Exchange Online environment. The ultimate goal is to access a list of rooms, list their…

All Exchange 2010 databases are dismounted after Installing Exchange 2016 coexist 2010

Dear All, All Exchange 2010 databases are dismounted after Installing Exchange 2016 coexist 2010. Please help me how to resolve this issue? sir. Thank you in advance, Tanisorn

Upgrade from Exchange 2013 to Exchange 2019

Hi Team Where do I start if i need to Upgrade from Exchange 2013 to Exchange 2019.

How to fix A0002 NO AUTHENTICATE failed. in a vb6 app

I have a vb6 app that will be retrieving mails from my outlook email account (example@outlook.com) which is my registered azure account ID. I can retrieve my token everytime I want to check for new mails using imap4, but on applying it later on in the…

How to fix mailbox server service down?