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Microsoft Authenticator: Installation on a new smartphone

Scenario: You use Microsoft Authenticator to access your Microsoft 365 account. You have changed your smartphone and you need to re-initialize the Authenticator on the new smartphone.

The procedure must be performed by the Tenant administrator.

Enter portal.office.com of the Tenant with administrative role.

Microsoft Entra

In the “Microsoft 365 Administration Center” on the left click on “Identity” (If you do not see it click on “Show All”).

At this point you will be projected into the “Microsoft Sign In Administration Center”.

On the left select “Users”.

On the right, search for the user and select it. On the user page, on the left, select “Authentication Methods”

On the new page, at the top right, there is a button “re-enroll multi-factor authentication”.

Azure Portal

Microsoft Entra user management can also be reached from the Azure portal by selecting “Microsoft Entra ID”. Then select “Users” and continue with the previous procedure.

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How to open MS office files on desktop app by default on Teams

Scenario. You have some Excel files on your Teams channels. When you open the file , it takes you to your internet browser.

To open MS Office files on the desktop app by default on Teams, follow these steps:

1. Open Microsoft Teams. On the left of your profile picture in the top right corner of the screen, there are three point.Click it
2. Select Settings from the dropdown menu.
3. Click on File and links in the left-hand menu.
4. Go to “File Opening Preferences” and select Desktop (Browser appears by default)

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Exchange Online / Microsoft 365 SMTP settings

Generic settings

  • SMTP server: smtp.office365.com
  • Port: 587
  • Requires SSL: Yes
  • Requires TLS: Yes (if available)
  • TLS version : 1.2
  • Authentication: Yes
  • Username: email address
  • Password: Your passwor

User configuration

SMTP sending is not enabled by default.

  • Log in as administrator to the account
  • Tab – Mail
  • Click on “Manage email applications”
  • Select Authenticated SMTP
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Microsoft MFA : Enabled or Enforced

Multi Factor Authentication (MFA)

Microsoft recommends using multi factor authentication for global tenant administrators. If you don’t do this, 60 days after the last reminder from Microsoft, the tenant is deactivated.

Warning: it’s not enough to activate 2-factor authentication … you also have to use it.

Enabled or Enforced

The problem is that activation is not enough. In fact, after activating the user, he must also log in with the MFA: at this point the user’s status changes from Enabled to Enforced.

You don’t have to have Global Admin with MFA in Enabled status but only in Enforced status.

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Office 365 : note

Office

External Member

Use Contact in Admin page

External Member and Group

You can add an external member to a group

Groups and shared Mailbox : same features

  • Users can send-as or send-on-behalf of a Group mailbox, just as they would a shared mailbox.

Office 365 Groups : additional features

  • Users (members) can subscribe to receive a copy in their own mailbox of the emails sent to the Group mailbox, which makes Groups closed to distribution lists.
  • Groups include additional apps as a SharePoint team site, OneNote notebook, Planner, and Teams.
  • Groups have a guest access model for external collaboration that shared mailboxes do not (Contacts).

shared mailboxes : additional features

  • Shared mailboxes can have sub-folders in the mailbox, whereas Group mailboxes can’t.
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Restrictions and limitations in OneDrive Web Download

onedrive

We had a problem downloading folders using Onedrive web. Under some conditions the download of a folder stops or the result does not contain all the files of the source folder.
When we contacted Microsoft, we learned that there is a limit on downloading folders using Onedrive web:

  • The folder cannot contain more than 50,000 files
  • The single file cannot exceed 15GB in size.

Microsoft recommends using Onedrive client.