FastTrack for Microsoft 365 topics

Intermittent Delay in Loading Files Tab in Microsoft Teams Channels

dicknoort715 — Thu, 09 Oct 2025 13:20:31 GMT

Description:

Within our municipality, we are experiencing an intermittent issue where the Files tab in Microsoft Teams channels takes >5 seconds to load. This behavior appears to be random and is not tied to specific users, devices, or locations. We have conducted several internal checks and can confirm the following:

The issue occurs in both small and large Teams channels, regardless of the number of files or folders.
It affects various Surface laptops, so it does not appear to be device-specific.
It happens both inside and outside our municipal buildings, ruling out local network dependency.
We exclusively use Microsoft products, including Surface devices, Microsoft Defender, and Intune for device management.

We would like to know:

Is this a known issue within Microsoft Teams?
Are there specific tenant-level settings or Intune configurations that could influence the performance of the Files tab?
Are there any recommended diagnostics or optimizations we can apply to improve consistency?

We appreciate any guidance or insights you can provide.

Kind regards,
Dick Noort
Advisor Information Services

Google Workspace migration to Microsoft 365 with multiple domains

ep_green — Thu, 03 Apr 2025 12:29:44 GMT

I'm managing a project to migrate mail from Google Workspace to Microsoft 365 via (Google Workspace Migration).

My scenario is composed as follows:

Primary domain in GWS: domain1.com

Secondary domain in GWS: domain2.com

Routing domain (alias domain) in GWS: m365.domain1.com and gws.domain1.com

Microsoft side: accepted domain: domain1.com,domain2.com, m365.domain1.com and gws.domain1.com

Users domain1.com have aliases routing domain m365.domain1.com and external forwarding gws.domain2.com.

Users domain2.com have aliases routing domain m365.domain1.com and external forwarding gws.domain1.com.

For users domain1.com the hybrid coexistence scenario, mailflow and batch work perfectly.

For domain2.com users, the batch works, but at the time of completion, it returns an error that Google asks for verification of the forwarding address, as it is different from domain2.com.

“GmailForwardingAddressRequiresVerificationException”

Which configuration am I doing wrong?

And above all, is the scenario in question supported?

Thank you

EFZ4 BAD Request is throttled

AdminOK — Thu, 13 Mar 2025 06:56:24 GMT

Hi,

We recently migrated to Microsoft 365, and we have an application called KEO, which downloads emails for its internal functionality. However, the application is now displaying an error:

"EFZ4 BAD Request is throttled. Wait XXXXX ms"

Is there a way to fix this issue, or what steps should we take to resolve it?

Thank you

Litigation Hold Mailbox Migration

rschlager — Mon, 10 Mar 2025 13:01:14 GMT

My company is currently moving from Exchange 2016 to 365. We are currently setup in a hybrid environment. The question arose of how do we migrate mailboxes that are on litigation hold.

I have found that you can do a migration of the lit hold mailboxes from on-prem to 365 without any issues per this document - https://learn.microsoft.com/en-us/exchange/policy-and-compliance/holds/holds?view=exchserver-2016#migrating-mailboxes-on-hold-from-exchange-server-to-microsoft-365-or-office-365. However, what I can't seem to find is the best way to test a migration for a lit hold mailbox. I also have found that some of our lit hold mailboxes have been on hold so long that their mailboxes are on Exchange version 0.10.

So, I really have 2 questions.

1) How can I test migrating a lit hold mailbox from on prem to 365 without using an active person's mailbox?

2) Does the Exchange Version for the mailbox matter when I migrate them?

Any help would be much appreciated.

GoDaddy to Microsoft 365 Migration Issues

OliP1 — Wed, 19 Feb 2025 14:12:43 GMT

Hi there, I wonder if I could get some help with an issue I've got. Currently I am attempting to migrate one user mailbox from the current GoDaddy tenant to our new Microsoft tenant, to initially test out the migration. I've followed the Migration tool in the Exchange admin center but am receiving the following error:

Error: MigrationRecipientNotFoundException: A recipient wasn't found for "***@***.onmicrosoft.com". Create a recipient of the appropriate type for this migration and try again.

I've got the user created in the Microsoft 365 admin center and a mailbox is set up for them. Both on GoDaddy and Microsoft it is UserMailbox recipient type.

I'm using the IMAP Migration settings as outlined from the GoDaddy IMAP settings, and have since checked with GoDaddy and they give these settings:
IMAP Server: imap.secureserver.net

Authentication: Basic

Encryption: SSL

Accept untrusted certificates: Yes

Port: 993

GoDaddy have also said that Basic authentication is supported by them and I have checked the Entra configuration to ensure that Basic is not blocked. I have even had the user I'm attempting to migrate log in to the temporary onmicrosoft account to make sure there are no log in issues there.

I have posted this on the Answers forum as well and was pointed in this direction for further help.

Any thoughts or help on this would be amazing.

Thanks in advance, Oli

Migration Email to 365

Kanzleilul — Fri, 07 Feb 2025 13:32:08 GMT

Hello,

I would like to transfer my email account from our host Siteground to Microsoft's business account. This is because the conventional hoster only has limited email storage and is almost full. The provider Siteground supports IMAP. I have several questions:

How do I proceed now? Do I have to transfer the domain first and then can I also transfer the email account in the second step?
Once the transfer has been completed, can I create additional email addresses via Siteground or do I now have to create all emails via 365 (which will probably incur costs)?

Thank you!

Migrating from Google Workspace to Microsoft 365 with to have two separate Mailboxes per User + SSO

sz456789 — Wed, 29 Jan 2025 13:14:10 GMT

Context and Requirements:

My company (abc.com) is being acquired by another org (xyz.com). We’re currently on Google Workspace (G Suite) for abc.com email and want to migrate everything (email, calendar, contacts) into Microsoft 365 — specifically into the xyz.com tenant. After migration, each user must have two fully separate mailboxes: Mailbox A: email address removed for privacy reasons (data migrated from G Suite)

Mailbox B: email address removed for privacy reasons (new mailbox in the xyz.com tenant)

We need true single sign-on (SSO) so users can log in once and access both mailboxes (not just alias addresses) within the same tenant. We want to minimize complexity. FYI we will set up abc.com as an Accepted Domain in xyz.com Microsoft Exchange tenant.

What I’ve Investigated So Far:

Migration Tools:

The Exchange Admin Center has a built-in G Suite migration wizard, but it mainly migrates mail to one mailbox.

Third-party tools like BitTitan MigrationWiz can also handle G Suite → M365 migrations.

Two-Mailbox Setup Approaches: One licensed mailbox + one shared mailbox: For example, the user’s main mailbox would be email address removed for privacy reasons (fully licensed with migrated data), while email address removed for privacy reasons is a shared mailbox to keep it separate. The email address removed for privacy reasons account gets Full Access and Send As permissions on the xyz.com mailbox.

Pros: Single sign-on, one set of creds, minimal extra licensing. The data stays separate (two distinct mail stores).

Cons: Shared mailboxes are limited to 50GB if unlicensed, and some compliance features may require a license.

Two fully licensed user mailboxes (two Azure AD user accounts, e.g. email address removed for privacy reasons and email address removed for privacy reasons): Each mailbox is completely independent, but typically requires two sign-ins unless there’s advanced identity federation to unify credentials. Also doubles the licensing.

Pros: Full feature set in both mailboxes, no shared mailbox constraints.

Cons: Additional license costs, and not a straightforward “one-click” SSO for both.

Questions

Which approach is best for maintaining two discrete mailboxes per user without forcing them to manage multiple logins?

Are there any best practices for migrating from Google Workspace into Exchange 365(specific tenaant) maintaining the same email address?

Have you run into compliance or eDiscovery issues with a shared mailbox approach?

Any caveats or special steps needed to ensure calendars and contacts migrate correctly from Google Workspace into the new environment?

Help with 365 migration please

Lilly1982 — Mon, 16 Dec 2024 16:29:46 GMT

Can anyone help me with this Migration please.

The tenancy has existed for some time and all users have had a business standard license to enable them to use Teams and Office 365 for some time. This means that mailboxes were created automatically but these have never been used.

AD Sync was in place.

I am trying to migrate from Exchange 2016 to 365. I have:

Checked each user has an e-mail alias in Exchange @leonardgray.onmicrosoft.com.
Configured Outlook Anywhere on my on-premises Exchange Server.
Enabled MRS Proxy on your on-premises Exchange Server.
Use the Microsoft Exchange Remote Connectivity Analyzer to test your connection settings.
Used the Outlook Anywhere (RPC over HTTP) or Outlook Autodiscover tests - it is showing no issues.
Checked the permissions on the account I'm using to migrate (domain admin and has FullAccess and assigned WriteProperty permissions).
We're not on Exchange server 2007 so no need to worry about unified messaging.
The domains are verified.
The users are created licensed.
I have the CSV with the list of users.
I've created a variety of migration endpoints and it verified as it saved and saved successfully.

I initially tried to use a cutover migration as it is what I have used successfully in the past. This failed, when I researched the error the articles suggested that it was because AD sync was in place. So I turned off AD sync. The cutover migration continued to fail.

The articles suggested that a Staged migration was a better option for this scenario. This failed with this error:

Error: MigrationTransientException: Failed to update the on-premises mailbox with the target address (SMTP:email address removed for privacy reasons). The mail sent to the user will not reach user's hosted mailbox. The error might be due to account credentials used for migration not having enough permission to write data back into the on-premise AD. Please ensure that the account credential has Domain Admin privilege. --] We weren't able to connect to the remote server. Please verify that the migration endpoint settings are correct and your certificate is valid, and then try again. Consider using the Exchange Remote Connectivity Analyzer (https://testexchangeconnectivity.com) to diagnose the connectivity issues.

I did some more reading and found an article that suggested that Staged migrations can only be used from Server 2003 and 2007. So I decided to try a Remote Migration. This one failed with the error: Error: TargetUserAlreadyHasPrimaryMailboxException: Target user '902b455c-5986-47c7-9988-bb7282df52b5' already has a primary mailbox.

The articles about this suggest I need to delete the data in homeMDB and homeMTA. The data in homeMDB looks like a pretty important link between Exchange on prem and Active Directory. I'm not particularly comfortable with just deleting this.

Can anyone tell me what I'm missing?

Cuales son los pasos para migrar mi correo que tengo en Godaddy a Microsoft 365

RobertoMartinez — Sat, 14 Dec 2024 20:07:31 GMT

Tengo una cuenta de correo en Godaddy con mi dominio personal, quiero comprar una licencia de Microsoft 365 y migrar mi correo hacia Microsoft 365 así poder aprovechas todos los servicios que ofrece Microsoft

Mi licencia actual vence el 1 de enero del 2025

He tratado de comprar una licencia con la cuenta de correo, pero me da error porque me indica que está asociado a un proveedor externo que Godaddy.

Intente migrarlo con la gente de Godaddy, me dice que debo tener un plan de licencia y el correo creado en Microsoft para que hagan la migración.

Todo me indica que en Godaddy están haciendo lo imposible para entorpecer la migración.

Quedo atento a su respuesta

Request for Consultation on M365 Power User Model Concept

PersisTech — Sun, 03 Nov 2024 13:40:19 GMT

Hello Team,

As a Microsoft Solutions Provider, I am in the process of designing a detailed M365 Power User Model Concept aimed at enhancing an organization's current M365 environment with a focus on scalability and sustainability. The primary objective is to establish a Power User model to drive organizational efficiency, optimize user engagement, and leverage advanced M365 capabilities.

This concept will include a structured approach to implementing the Power User model as part of a comprehensive upgrade to the latest M365 framework. Your expertise and consultation on the development and deployment of this model would be greatly appreciated.

Thank you for your insights.

Best regards,

FastTrack in a Classic site collection in my tenant

LisaJo48 — Tue, 22 Oct 2024 13:22:23 GMT

I have a very brief question for which I have not been able to get any input or answers so, I am putting it out to anyone that might have some info to offer.

I have a Classic SharePoint FastTrack site collection in my tenant containing Classic Add-ins. May I delete it and the Add-ins along with it without causing problems with the use of FastTrack programs and services?

https://XXXXXX.sharepoint.com/sites/fasttrack

https://XXXXXX.sharepoint.com/sites/apps

Thank you for any insight you can offer.

You are not eligible for ‎FastTrack‎ assistance.

iahmed — Mon, 19 Aug 2024 06:38:13 GMT

After purchasing E3 and E5 licenses after how many days we are eligible to request for FastTrack assistances? For me license purchased 2 days before but in Admin portal still we are getting "You are not eligible for ‎FastTrack‎ assistance." Any idea?

Tenant to tenant mail migration from large to small organization

HappyTechie — Tue, 13 Aug 2024 12:28:26 GMT

According to Microsoft sales team the answer in this thread is most likely wrong! Can you confirm that?
(commenting is not possible anymore)

We are a small group in a very large organization now established as an independent company. A very common situation.
New licenses for Office365 including everything and all premium have been acquired for our small independent group.
The very reason to continue using Office365 is to ensure a smooth migration of Outlook mail including calendar, and only spending a minimum of time on related tasks.
MS sales team advice that you can do a migration as in these guides, but you require "Cross Tenant User Data Migration", which only is available to "Enterprise Agreement" customers - and of course not for our small group.

How can we quickly and smoothly do the migration?

In case of a work-around like exporting data to a PST-file, then please observe that this task must be completed in the web app, and we cannot achieve admin privileges in the large organization.

The question has been migrated from here.

Branding kit - product icons

CKWGA — Thu, 30 May 2024 14:50:43 GMT

I downloaded the Microsoft 365 branding kit from the Microsoft FastTrack web site as I've read that this is the only way to get access to the Microsoft 365 product icons. However, the branding kit only contains PDFs of the product icons, not actual graphic images. Is there a way to get the actual images?

Inactive Users PST Migration from Tenant to Tenant M365

Asad_Hussain — Fri, 10 May 2024 12:35:28 GMT

Is there a way I can migrate an inactive PST to another Office 365 tenant? Any suggestions on how I can move PST files to another tenant using eDiscovery?

Is there any PowerShell script that can upload the PST directly into another Tenant data life cycle management Import job for PST.
can AZ copy -copy the data from eDiscovery Export Key to Target Tenant SAS URL.

Migration of Inactive Users

SyedSafwan — Fri, 10 May 2024 12:25:35 GMT

Hi Team,

We recently received a new request for Migration of Inactive Users from Source Microsoft365 tenant to Destination Microsoft 365 tenant we need to automate this migration can anybody recommend the best way to achieve this.

Need to Migrate the Mailbox Data and OneDrive Data of Users

On prem domain - AD Connect Writeback to enable Intune/Defender and increased ASM

JefferyHolliday — Fri, 19 Apr 2024 13:55:09 GMT

We are a small financial institution and are looking to increase our security. Our on prem domain and on prem servers are not moving to cloud, but we are looking to strengthen our endpoint security for a hybrid workforce. Intune and Defender for Endpoint offers a lot of what we need, and we have to upgrade to Microsoft E3/E5 anyway to meet audit requirement for Mobile Application Management anyway.
In order to be able to access on premise printers and file shares, I need to enable password and device writeback in our AD Connect and change our hybrid joined devices to Azure domain joined. This seems to increase our attack surface and ASM. We do not have a website so our current lack of attack surface is an asset. We are concerned with opening our attack surface, but I believe the addition of the capabilities of Intune and Defender for endpoint are worth the increased attack surface.
1. Am I correct in this assessment that the reward is worth the risk?
2. What can I do to lock down the attack surface so we don't have external attacks on our on premise assets or our accounts via O365?

GAL SYNC ISSUE

abhis19922603 — Tue, 19 Mar 2024 04:38:27 GMT

Recently we migrated our mailbox from Zimbra to O365 but after migration we are facing the issue with GAL SYNC users are not getting the updated address list.

Can someone please advises on it...

Teams Town Hall

Marwa20 — Thu, 21 Dec 2023 09:09:39 GMT

How to get Teams Town Halls? Shall I purcahse Office 365 E1 for example + Teams EEA to get Teams Town Halls?

MS teams notification (or windows default notification)

JohnnyYoung — Tue, 17 Oct 2023 20:27:52 GMT

Hey there team,

Not sure if this is a possibility - I have trawled many MS documents and panels but have yet to uncover any information. Essentially, my ask is - is there anyway to change the standard MS teams purple notification box to be another customised colour? And if so, can that be done for a specific team/channel?

The reason for this in particular is so the message (be it a power automated or standard teams message) has a visual point of difference.

Is this possible at all?

Thanks in advance