Questions tagged [exchange-migration]

An Exchange migration refers to the process of migrating to a new version of Exchange, or migrating a between Exchange and different email server. Because Exchange cannot be upgraded in-place between major versions, upgrading Exchange is done by migrating to a newer version instead.

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BitTitan (405) Method Not Allowed

Trying to migrate mail from on prem exchange server to O365, and getting a 405 method not allowed error. I've tried some of the things out there to allow all verbs in IIS and disable webDAV, but ...
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Exchange 2010 Minimal Hybrid in place : Migrate or Decom?

I'm trying to understand the best approach with an Exchange 2010 Server with a minimal hybrid configuration. All is migrated to the cloud, the current Exchange 2010 is not in prod, but some mailboxe ...
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Exchange Server 2010 to 2016 migration

A small company I am working for has a self-hosted Exchange Server 2010 running, and my job is to migrate this server to an Exchange server 2016, since the old one is out of support for quite a while ...
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Exchange. How to forward mail, not save it

We are migrating mail from one of our domains to the exchange (123123.com). We created users in AD, created mailboxes for them and copied mail from Google there. Also the domain was added to accepted. ...
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Exchange 2010 to 2016 (Multi Site)

My scenario: Datacenter #1 — AD Site “A” * -4 ISP internet connections. (Outbound independently) * -2 DCs GC (FSMO) Internal DNS * -2 DNS Servers - External DNS hosted into a DMZ (SPF / MX / PTR ...
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Microsoft Exchange: difference between a "mailbox" and a "mail user"?

I'm in the process of migrating from G Suite to Office 365 using the article on Microsoft's website. It asks you to create a Mail User for everyone in the organisation, however, we already have a ...
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2010 to 2016 Public Folder Migration - Error: MigrationMRSPermanentException

Migrating 60gb of 2010 public folders to 2016 (on premise, 9 PF mailboxes). Mailboxes 2-9 show as "Synced" and mailbox 1 shows "Failed" with this error: Data migrated: 8.504 GB ‎(...
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Migration of mailboxes from Exchange 2013 CU23 to Exchange 2019 CU7 causes the target database to crash

the text was translated by machine. I need help with a problem in the process of migration from Exchange Server 2013 CU23 to Exchange Server 2019. I have the same problem as already asked by ...
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Migrating from Exchange 2013 to 2019 causes target database to crash

having trouble with migrating Exchange 2013 mailboxes to Exchange 2019. Whenever a mailbox is in the final steps of the migration it causes an outage of the target mailbox (Mailbox Database 2019). The ...
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Migration of public folders from Exchange 2010 to Icewarp

We are in the process of Migrating Exchange 2010 to Icewarp. The migration process works without problems for postboxes and items. I'm feeling absolutely lost when it comes to Exchange public folders. ...
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Mailbox migration fails from Exchange 2016 to 2019

I'm doing an Exchange upgrade from 2016 to 2019 and started having migration failures on a number of mailboxes. I went from 2010 to 2016 with no issues. The first time I started the migration (using ...
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Microsof Exchange 2013 export to 3rd Party cloud hosting

So I'm trying to export mailboxes off of a local exchange 2013 server and upload them to a hosted VPS running IMAP. So basically migrating mailboxes from exchange to IMAP. I was told that I could move ...
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Migrating Mailstore from Exchange 2010 to Exchange 2013

I have to domains, A.de and B.de. They trust each other since some years. A and B both use Exchange 2010. Now, A.de started to use Exchange2013. Now the two domains should get merged, i.e., A.de ...
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Migrate Exchange 2010 to Exchange 2016, but do it gradually

We have a small-organization, on-premises Exchange 2010 setup running on Server 2008 R2. Our goal is to migrate to Exchange 2016 running on Server 2016 (I guess -- I would prefer Server 2019, but ...
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HCW8078 Hybrid Exchange Error

I did a fresh install of DC1 DC2 and Exchange so I'm not sure why I am getting errors still. https://imgur.com/a/16IEtyh
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Cannot achieve Exchange Server authentication to 2010 Exchange server from 2016 Exchange server

I am in the process of migration Exchange 2010 to 2016 server. Currently I have installed Exchange 2016 which is co-existing with 2010. I have created a test mailbox on the 2016 server. I am able to ...
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Connecting to on-prem calendar from 365 account

Good morning folks. We've got a weird situation and I can't find a way round it. The client has had a partial migration to 365 - mailboxes for three domains were hosted in Exchange 2013 and those from ...
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Partial migration from Exchange to Office 365

I am managing a small business IT environment which includes an on-premise Exchange mail server. Now a few users would like to move to Office365 to be able to work from anywhere (emails + OneDrive ...
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How to edit migration details to Office 365

I use the Office 365 Business Web interface to migrate IMAP email accounts. I imported one .csv file with 20 mailboxes. 17 synced and three failed because of a wrong password. Now I received the ...
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How can I trace the SidHistory to the original and destination domain?

I am seeing groups that either contain the current or prior SidHistory for a user in a large complex AD Forest with many domains. Is it possible to look at the first half of the SidHistory and ...
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Exchange Online Migration: Single Tenant with Multiple Exchange Endpoints

Planning out a migration for 3 separate Exchange Servers/AD forests with no AD trusts configured; there is site-to-site connectivity by way of IPSec tunnels. These three mail servers share an email ...
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Separate namespace for Exchange hybrid servers

I read somewhere that you could do the following hybrid deployment. 1) Two dedicated Exchange 2016 "hybrid servers" that are F5 load balanced 2) Create a new namespace called hybrid.contoso.com. (...
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How to manage individual mailbox of the batch migration?

I tried to migrate 4 mailboxes in a batch migration with 'manually complete' is on. When the synchronization is done, I noticed 1 of them is failed, I know how to fix the failed box. But the question ...
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IMAP to Office 365 migration error

I am migrating mailboxes from an on-premise IMAP server to Office 365. Most of the accounts are migrating fine, but I'm hitting the following error on a handful of accounts. Error: ...
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Outlook 2016 clients not downloading/caching all mailbox data

Migrating a client from FuseMail hosted Exchange to Office 365. Unfortunately, FuseMail has no administrative controls, and the client only has 8 user accounts, so I've fired up some virtual machines ...
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Exchange 2013. I cannot send email. error: You don't have permission to perform this action

I am upgrading from Exchange 2010 to Exchange 2013. I have installed Exchange 2013 on a separate server and managed to migrate my mailbox to an Exchange 2013 database using Exchange 2013 EAC/ECP. ...
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Exchange 2010 to 2013 duplicated user after migration

I have the following problem: By migrating a user from the databese EX2010 to EX2013 via the Exchange Admin Center a second user/duplicate is getting created and the original mailbox/isn't ...
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sbs 2008 to office 365 staged migration

I'm looking for some help with a client. He currently has sbs 2008 with his email server on site and due to it being dropped from official support I've suggested that he moves to office 365. What he ...
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Hosted Exchange to Office 365 migration: should we move to O365 at our hoster before moving?

Our company's email is hosted Exchange 2016 (hosted by AppRiver). It's a simple setup: only ~100 mailboxes, single domain, no linkage between Exchange and our corporate file/print/login AD, no public ...
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Exchange 2007 migrate to new virtual server

I have a physical server that currently runs our Exchange 2007 environment on Windows Server 2008. Very small environment with only 30 mailboxes on it (all roles on this one server, nothing fancy or ...
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Office 365 - Deleting Users With Status "Syncing" From Migration Job?

Hoping someone can help answer this question for us - we currently have a hybrid setup for our Office 365 and are starting to migrate users' mailboxes from on prem Exch 2010 to O365. We have a rather ...
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Upgrade Windows Server when Exchange Installed [duplicate]

I currently have Exchange 2010 installed on Windows Server 2008 R2 but would like to upgrade both the operating system (Windows Server 2012 R2 or Windows Server 2016) and Exchange (Exchange 2016). I ...
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Migrate from Exchange 2010 to Exchange 2016

I’ve inherited a setup where Exchange 2010 is installed on Windows Server 2008 R2, I want to upgrade to Exchange 2016 and Windows Server 2016. I’ve read Microsoft does not support upgrading OS when ...
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Wrong date on mails when searching on iPhone after Exchange migration

After a colleague of mine migrated Exchange for a customer from Exchange on a small business server to Exchange 2016 the dates are messed up when searching. When a user just browses his or her email ...
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Migration of Exchange 2010 to AWS server

We currently have Exchange 2010 running on Windows Server 2008 R2. Our Active Directory is also on the same server. We have 2 mailbox databases and approximately 300 mailboxes. We want to move this ...
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Get-Migrationbatch - Return specific job with status

I've created a PowerShell script that creates a migration batch from Exchange on-premises to O365 Exchange Online using the New-MigrationBatch cmdlet. My next step is to halt the script until the the ...
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Migrating Exchange 2010 Mailbox to Office 365: Freebusy Data folder corrupt

We have an on-premise Exchange 2010 install which we are migrating to Office 365, and I have a mailbox which is failing to migrate due to "CorruptFolderSecurityDescriptor" errors. It ended up that ...
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How to stop the Exchange 2010 server only -O365 migration

I have recently done a migration to 365 and I have an in house Exchange 2010 server. As I expected there are people who are still connected to the old server even though there has been numerous emails ...
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New mail in inbox not showing in Outlook 2010 client

Hello this week i've migrated an old Mdeamon mailserver to Exchange 2013 this is done by importing all the mailboxes using a pst file. The whole migration went fine. Yet there's one Mailbox where in ...
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Migration from third-party hosted Exchange to Office 365 - How to avoid NDRs caused by X500 addresses?

Our organisation is currently migrating away from a third-party hosted Exchange 2013 server to Office 365. Our organisation spans over multiple branch offices, each with its own domain, and we are ...
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config365 Outlook error, Outlook cannot log on

I have tried to test out outlook once I have run Config365. I have done a cutover migration and everyone has synced. I would just like to test my Outlook just to make sure that all I need to run is ...
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Cutover migration from exchange 2007 to exchange online error

Has anyone ran into this error? If so, what steps did you take to resolve it? I have about 17 users out of 150 that i cannot migrate because of this error. "Permanent error occurred while accessing ...
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Mailbox moves - MSExchange ResourceHealth registry key doesn't exist

Migrating mailboxes from Exchange 2010 to Exchange 2016. It's going excruciatingly slowly, likely because the old and new VMs share the same relatively slow disks, and it keeps getting throttled. ...
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Exchange 2010 to 365 Questions

I have a client running Exchange 2010, 3 mail stores and 300 mailboxes. We are in the process of updating their infrastructure and as part of it are moving them to 365 for their mail. At the same ...
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What's is the best way to migrate dovecot imap accounts to office365

i need migrate some accounts from dovecot imap service (how cpanel setup) to office365. This accounts should be of diferent licences businnes and kiosk. Is this possible? Any suggestes? Somebody ...
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How to reconcile user with both on-premise and cloud mailboxes?

We are in the middle of hybrid coexistence migration from Exchange 2010 on-premise to Office 365. That means we have ADFS and "Dirsync" (now called Windows Azure AD Sync) running. We are more than ...
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Office365 Cutover Migration fails

I am working on migrating an on premise Exchange 2010 server to Office365 Exchange Online. I am doing a cutover migration as we have less than 100 mailboxes and the cutover is going to happen in a ...
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Migrate to new Exchange 2010 server in different AD site

We currently have a domain with two AD sites. Site A has one Exchange 2010 server which currently holds all the mailboxes. I set up the new site, Site B, and it is connected via site-to-site VPN. Site ...
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Simplest way to move a small public folder to Exchange Online?

I'm working on a migration for a SMB customer (~25 mailboxes) from on-premises Exchange 2010 to Exchange Online; I've set up the hybrid configuration, and I'm currently moving the mailbox data; ...
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In Exchange 2010/2013 co-existence, should I be seeing 2013 CAS servers when running Get-*VirtualDirectory Cmdlets?

We're in the middle of migrating from Exchange 2010 to Exchange 2013. I have 2 Ex2010 CAS and 2 Ex2013 CAS servers. I understand changes have been made to the roles between 2010 and 2013 versions. ...
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