Microsoft Exchange

Authentication prompt on Shared mailbox which seems public folder mailbox issue

Environment: Exchange Hybrid, users, shared mailboxes and public folder mailboxes are On Premise We have the following autodiscover url, the DNS records are there too: Users have no issue opening their mailbox. Autodiscover works fine, you see the url…

Exchange Server DAG, DB GUID info missing from registry on one of my three servers

I have inherited a three server Exchange 2016 DAG running on 2012 R2. We have two DBs(old) on one drive and we created two new DB's on different drives to move to. So one of the changes was to increase the DB size threshold in reg. I went in to the…

Backup recommendations for Exchange Server 2016 - What should be included and how to manage space?

What backup strategy would you recommend for Exchange Server 2016, considering the large amount of space required for full database backups? Additionally, what essential data should be included in the backup? We are currently using Windows Server Backup…

Exchange 2019 auth login 535 5.7.3 Authentication unsuccessful

Hello everyone I have a problem with enabling oauth login. I successfully login via telnet with enterprise admin right but simple user get error "535 5.7.3 Authentication unsuccessful" on this reason could some body help me? when I log in with…

Why doesn't Outlook sort the departments correctly in the OAB?

All employees have an entry in the OAB which is managed via an Exchange Server, all are assigned to a department, in the address book there are beside the global also the different departments as subfolders, for one user the department had to be changed.…

Can't recover a DAG member

Hello! The theory: "If the DAG member being removed is offline and can't be brought online, you must add the -ConfigurationOnly parameter to the preceding command. If you use the -ConfigurationOnly switch, you must also manually evict the node from…

auditing for shared mailbox

Hi, I am having a situation where my deleted items folder was empty. However, after one particular day I could see hundreds of emails in my deleted items folder. There are no inbox rules set. And retention policy settings are move to archive or move to…

What could be an issue when there is an any email coming with voicemail transcription file with .htm or .html extension is being transfer to quarantine?

What could be an issue when there is an any email coming with voicemail transcription file with .htm or .html extension is being transfer to quarantine? There is Anti-Spam inbound policy (Default) in M365 defender for O365 with below settings in short.

How to fix content index issue

Our exchange server 2013 index issue. we are unable to search any recent email. We try to start the exchange host search controller service also. it is giving error 1053. kindly help us we are using exchange 2013 on-premises

How can I store (and Access) All user activity logs for All users in my environment?

I currently administer over 200 users within Azure AD. All users have access to the full suite of MS 365 applications. My question is... What is the best way to store ALL user activity information, for 1 year, to be quarried at will? For example, user…

Exchange 2016 Migration end point creation fail

Exchange 2016, 1 server Ran Hybrid Confi Wiz successfully. Ran it a second time just to be certain. Trying to create the migration end point via the Migration Endpoint Wizard. It fails on auto discover and asks for the FQDN of the server that the MRS…

create contact

Hi All I am using exchange 2016 Hybrid Environment. I want to create contact in exchange onprem using powershell. Please guide me with the syntax with the below information. First Name: Test Last Name: user1 Display Name: Test User1 Name: Test…

EWS Support and Security Updates Inquiry

Dear Microsoft Support Team, I am reaching out to inquire about the current status and future plans for the support of Exchange Web Services (EWS). In a communication from Microsoft in 2018, it was mentioned that EWS would no longer receive feature…

Exchange Auto forwarded message report filter?

Hello, We currently utilise the Auto forwarded message report Auto forwarded message report feature on Exchange (Reports > Mailflow > Auto forward message report). We are alerted into Defender for any new auto-forward rules set up in our estate…

License Requirement for Multiple Exchange Servers

Hi, We want to install two exchange mail servers each on different host. How many server licenses do we need to purchase? Do we need to purchase total two licenses or only one is enough? Please guide. Thanks

Migrated from Exchange 2016 to 2019. Exchange 2016 is failing to uninstall all roles

We recently migrated from Exchange 2016 to Exchange 2019. We are in the process of removing the 2016 servers, however when we go to uninstall whether it's via GUI or command line, it fails right when it gets to the Mailbox role: Unified Messaging…

Query on mail users in hybrid deployment

Hi, As per the Microsoft documentation, when you create a office 365 mailbox in exchange online in hybrid deployment, then a mail user will be created at on-premises. Just trying to understand why this was happening. The purpose of mail user is to…

cannot deliver message

Exchange Business Continuity plan

I want a business continuity plan for Exchange Server 2016 DAG with 4 Servers one having all active copies and other having passive copies.How can I create this plan where is the documentation?

I am not receiving emails. Why is my account suddenly saying there isn’t enough storage after nearly 2 decades of use, and when I’ve deleted 100’s emails?

Within the last week, completely out of the blue, my account is no longer receiving emails. The account is saying that there isn’t enough storage, despite me deleting 100’s of emails. I’ve had the account nearly 2 decades and the amount of mail I have…