Remote-access Guide

exchange disable remote access

by Prof. Montana Ortiz V Published 1 year ago Updated 1 year ago
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How do I turn off OWA in Exchange?

In the Classic EAC, navigate to Recipients > Mailboxes. On the mailbox properties page, click Mailbox Features. Under Email Connectivity, do one of the following: To disable Outlook on the web, under Outlook Web App: Enabled, click Disable.

How do I disable remote mailbox?

Use the Disable-RemoteMailbox cmdlet to perform the following actions:Remove a cloud-based mailbox but keep the associated on-premises user account. To do this, you first need to remove the Exchange Online license for the mailbox. ... Disconnect a cloud-based archive mailbox from a cloud-based mailbox.

What happens if I disable Exchange ActiveSync?

Disabling ActiveSync on a mailbox prevents the user from synchronizing their mailbox with a mobile device (by using ActiveSync). Administrators can use the Exchange admin center (EAC) or the Exchange Management Shell to enable or disable Exchange ActiveSync access to a mailbox.

How do I restrict access to OWA?

Logon to the Azure Portal and browse to Azure Active Directory or Intune. Open the tab Conditional Access and click on +New Policy. The new policy is opened, give your policy a name and click on Users and Groups. Here you need to choose to which users and/ or groups this policy will be applied.

What does disable remote mailbox do?

You can use the Disable Remote Mailbox (Hybrid) activity to remove a mailbox from the cloud-based service (hybrid environment). When you remove a mailbox with this activity, the associated user object in the on-premises Active Directory is not removed.

How do I deactivate my Exchange account?

These steps apply to devices running iOS 5.5 or above.Go to Settings > Mail, Contacts, Calendars. The Accounts screen will open.On the Accounts screen, tap the Exchange Account you want to remove.Scroll down and click Delete Account. ... On the Delete Account warning window, click Delete Account to finish.

Is ActiveSync a security risk?

ActiveSync is the industry-standard protocol for push email, but it is not an adequate mobile security solution. Any device that relies on only ActiveSync as protection is at high risk of breach from these types of exploits because ActiveSync cannot detect or mitigate them.

What is the difference between Exchange and Exchange ActiveSync?

Answers. Exchange is the software encompassing email, while ActiveSync is a component of (or a method of connecting to) Exchange for mobile connections into an Exchange mailbox (ie. iPhone, iPad, Droid, Windows Mobile).

What apps use Exchange ActiveSync?

Microsoft Teams.Microsoft 365 admin center.Microsoft 365 Apps.Microsoft 365 compliance.Microsoft 365 security.SharePoint.OneDrive.All apps and services.

Should I disable Exchange Web Services?

Based on what I have found it is not recommended to entirely disable EWS as this could impact active sync among other apps\services. The insurance company gave the explanation that when EWS is enabled this creates an exploitable condition.

Can we lock down access to Office 365 to our company offices?

You can do this with Conditional Access. You might want to lock down access to Office 365 to company offices, to corporate devices and enable multi-factor authentication. Limit Users/Groups: You can build policies based on users or groups. Start first by selectively choosing a test user or group.

How do you put restrictions on Outlook?

Click File > Options > Mail. Under Send messages, select Normal, Personal, Private, or Confidential in the Default Sensitivity level list.

How do I remove a shared mailbox in Outlook?

Start Microsoft Outlook. Click on the 'File' tab at the top left, then on 'Account Settings' and then in the dropdown menu again Account Settings. If the shared mailbox is here, select it and choose remove.

How do I stop a shared mailbox from receiving emails in Office 365?

On the mailbox properties page, click Mailbox Features. Under Message Delivery Restrictions, click View details to view and change the following delivery restrictions: Accept messages from: Use this section to specify who can send messages to this user.

How do I turn off premises archive?

Use the EAC to disable an archive mailboxGo to Recipients > Mailboxes.Select a mailbox.In the details pane, under In-Place Archive, click Disable. Note: You can also bulk-disable archives by selecting multiple mailboxes (use the Shift or Ctrl keys).

How do I delete a mailbox from the Exchange admin center?

Use the EAC to delete a mailboxIn the EAC, go to the location for the type of mailbox that you want to delete: Recipients > Mailboxes for user mailboxes and linked mailboxes. ... Find and select the mailbox that you want to disable. ... After you've selected the mailbox or mailboxes that you want to delete, click Delete.

What is Exchange Online PowerShell?

Exchange Online PowerShell enables you to manage your Exchange Online organization from the command line. By default, all accounts you create in Microsoft 365 are allowed to use Exchange Online PowerShell. Administrators can use Exchange Online PowerShell to enable or disable a user's ability to connect to Exchange Online PowerShell.

Can you disable users in PowerShell?

Use a list of specific users: After you generate the list of specific users, you can use that list to disable their access to Exchange Online PowerShell.

Can you block PowerShell access to Exchange Online?

You can also use Client Access Rules to block PowerShell access to Exchange Online. For details, see Client Access Rules in Exchange Online.

What is archive switch?

The Archive switch specifies whether to disconnect the cloud-based archive mailbox from the associated cloud-based mailbox. You don't need to specify a value with this switch.

Do you need to convert shared mailboxes to user mailboxes before running Disable-RemoteMailbox?

Due to the current service architecture, you need to convert shared mailboxes to user mailboxes prior to running the Disable-RemoteMailbox cmdlet.

Can you remove a cloud mailbox?

To do this, you first need to remove the Exchange Online license for the mailbox. Otherwise, the mailbox won't be removed. The on-premises mail user is automatically converted to a regular user object.

What is client access rule in Exchange 2019?

In Exchange Server 2019, you can use Client Access Rules to block client access to the EAC. For more information, see Client Access Rules in Exchange Server.

How to open IIS Manager on Exchange Server 2012?

Open IIS Manager on the Exchange server. An easy way to do this in Windows Server 2012 or later is to press Windows key + Q, type inetmgr, and select Internet Information Services (IIS) Manager in the results .

What is the EAC in Outlook?

The Exchange admin center (EAC) is the primary management interface for Exchange 2013 or later. For more information, see Exchange admin center in Exchange Server. By default, access to the EAC isn't restricted, and access to Outlook on the web (formally known as Outlook Web App) on an on an Internet-facing Exchange server also gives access to the EAC. You still need valid credentials to sign in to the EAC, but organizations may want to restrict access to the EAC for client connections from the Internet.

How to read and execute in EAC?

e. Back on the Permissions for EAC_Secondary window, select IIS_IUSRS, and in the Allow column, select Read & Execute (which automatically selects the List Folder Contents and Read permissions), and then click OK twice.

Where to create ecp and owa folders?

Create ecp and owa folders in C:inetpubEAC_Secondary.

What happens when you install a cumulative update on Exchange?

When you install an Exchange Server Cumulative Update (CU), the CU won't update files in the new web site and virtual directories. After you apply the CU, you need to completely remove the new web site, virtual directories, and content in the folders and then re-create the new web site, virtual directories, and content in the folders.

Do you need permissions to run PowerShell?

You need to be assigned permissions before you can perform this procedure or procedures. To see what permissions you need, see the "Exchange admin center connectivity" entry in the Exchange infrastructure and PowerShell permissions topic.

Where to ask for help in Exchange?

Having problems? Ask for help in the Exchange forums. Visit the forums at: Exchange Server, Exchange Online, or Exchange Online Protection.

How to bulk edit mailboxes?

Select a mailbox, hold down the Shift key, and select another mailbox that's farther down in the list. Hold down the CTRL key as you select each mailbox. After you select multiple mailboxes of the same type, the title of the details pane changes to Bulk Edit.

What happens when you select multiple mailboxes of the same type?

After you select multiple mailboxes of the same type, the title of the details pane changes to Bulk Edit.

Do you need permissions to access a procedure?

You need to be assigned permissions before you can perform this procedure or procedures. To see what permissions you need, see the "Client Access user settings" entry in the Clients and mobile devices permissions topic.

Can you disable Outlook on the web?

Administrators can use the Exchange admin center (EAC) or the Exchange Management Shell to enable or disable Outlook on the web access to a mailbox. By default, users can access their mailboxes by using Outlook on the web. When you disable Outlook on the web access to mailboxes, users can still access their mailboxes by using Outlook or other email clients.

How to modify mailbox in EAC?

In the EAC, go to Recipients > Mailboxes. In the list of mailboxes, find the mailbox that you want to modify. You can: Scroll through the list of mailboxes. Click Search and enter part of the user's name, email address, or alias. Click More options > Advanced search to find the mailbox.

How to check Exchange ActiveSync?

In the EAC, go to Recipients > Mailboxes > select the mailbox > click Edit > Mailbox features > and verify the Exchange ActiveSync value in the Mobile Devices section.

What is ActiveSync in Exchange?

ActiveSync is a client protocol that lets users synchronize their Exchange mailbox with a mobile device. By default, ActiveSync is enabled on new user mailboxes. Disabling ActiveSync on a mailbox prevents the user from synchronizing their mailbox with a mobile device (by using ActiveSync). Administrators can use the Exchange admin center (EAC) ...

What is the EAC in Exchange?

Administrators can use the Exchange admin center (EAC) or the Exchange Management Shell to enable or disable Exchange ActiveSync access to a mailbox.

What happens when you select multiple mailboxes of the same type?

After you select multiple mailboxes of the same type, the title of the details pane changes to Bulk Edit.

Where to ask for help in Exchange?

Having problems? Ask for help in the Exchange forums. Visit the forums at: Exchange Server, Exchange Online, or Exchange Online Protection.

Do you need permissions to use Exchange ActiveSync?

You need to be assigned permissions before you can perform this procedure or procedures. To see what permissions you need, see the "Exchange ActiveSync settings" entry in the Clients and mobile devices permissions topic.

How to block basic authentication in Exchange Online?

You block Basic authentication in Exchange Online by creating and assigning authentication policies to individual users. The policies define the client protocols where Basic authentication is blocked, and assigning the policy to one or more users blocks their Basic authentication requests for the specified protocols.

What is basic authentication in Exchange?

Basic authentication in Exchange Online uses a username and a password for client access requests. Blocking Basic authentication can help protect your Exchange Online organization from brute force or password spray attacks. When you disable Basic authentication for users in Exchange Online, their email clients and apps must support modern authentication. Those clients are:

How to change authentication policy in Microsoft 365?

In the Microsoft 365 Admin Center, under Settings > Org Settings > Modern Authentication you can designate the protocols in your tenant that no longer require Basic Authentication to be enabled. Behind the scenes, these options utilize Authentication Policies. If Authentication Policies were created in the past, modifying any of these selections will automatically create the first new Authentication Policy. This policy is visible only through PowerShell. For advanced customers that may already be utilizing Authentication Policies, changes within the Microsoft 365 Admin Center will modify their existing default policy. Look through Azure AD Sign-in logs to get a good idea of which protocols clients are using before making any changes.

What does the email client send to Exchange Online?

The email client sends the username and password to Exchange Online.

What is the response to authentication policy block?

When an authentication policy blocks Basic authentication requests from a specific user for a specific protocol in Exchange Online, the response is 401 Unauthorized. No additional information is returned to the client to avoid leaking any additional information about the blocked user. An example of the response looks like this:

What is the default authentication policy?

The default authentication policy is assigned to all users who don't already have a specific policy assigned to them. Note that the authentication policies assigned to users take precedence over the default policy. To configure the default authentication policy for the organization, use this syntax:

Is basic authentication disabled in Exchange?

If you've enabled security defaults in your organization, Basic authentication is already disabled in Exchange Online. For more information, see What are security defaults? . Please see Basic Authentication and Exchange Online for the latest announcements concerning Basic authentication.

What is client access rule in Exchange 2019?

It allows the administrator to define rules to block or limit access to EAC (former ECP) and to EMS (Exchange Management Shell). This functionality was not present in previous versions of Exchange and now it is a security milestone for small organizations, which cannot afford solutions like firewall operating at OSI layer 7 (application layer) to restrict access from the outside of the organization.

What are the elements of a client access rule?

A single Client Access Rule consist of the following elements: Condition – identifies the client connection to which the rule applies. Exception – identifies the client connection to which the rule should not apply. Action – defines what actions need to be taken when the client connection meets the condition.

What is get-clientaccessrule?

Get-ClientAccessRule – this cmdlet will return the results showing a list of currently configured rules.

Can you create client access rules based on department attribute?

To meet the abovementioned requirements, you can create the Client Access Rules based on, for example, the Department attribute in Active Directory. I created two new employees in AD who are members of the IT Department and assigned them with Organizational Management rights.

Can VLANs access EAC?

As a result, only VLAN Management can access EAC. Users from other VLANssubnets will not be allowed to access EAC.

Can you manage client access rules?

Managing Client Access Rules is possible only from the Exchange Management Shell level. There is no GUI you can use to manage them. The Client Access Rules feature allows you to block:

Can you block authentication protocols in Active Directory?

With the use of more advanced rules, you can also block elements like authentication protocols, selected users in Active Directory or users having specified attributes in AD like e.g. Department, Company, etc. (the last option seems to be reserved for Exchange Online, for the moment). To get more information about Client Access Rules, visit this Microsoft document.

Does Exchange 2013 have an internal OA?

Set the same internal URL for the external URL . Exchange 2013 has an external OA and an internal OA URL.

Can you use OWA outside the LAN?

Management could use OWA outside the LAN. Outlook outside the LAN should not work (unless someone knows what port to use and where to change the port in Outlook) Sync outside the LAN should be broken by this, so using mobile devices outside the LAN will be broken also (This alone would kill the idea for us.)

ELI5: What is the difference between Teams and Groups?

I just started a new job and I'm set up in MS Teams on a couple of different Teams. I'd used Teams in my old job and am familiar with it. However I also was notified that I was added to two other Groups, which is not something I'd ever heard of.

Is it possible to set up a form for something like PTO approvals?

Our current process is to prepare a PDF, send it to a supervisor for approval (they have to save and digitally sign, or print/sign/scan) and send back to the staff person/admin.

Is Their way to get notification updates in Microsoft 365 roadmap to my Microsoft work email regarding development status of upcoming functionalities??

Also, beyond this question. I would like to know if Microsoft would let some users become beta testers for testing the functionality of their product?

Disable Azure MFA when using Duo

We are looking to migrate to M365 and I have the basic tenant configured in hybrid right now, though I have one issue I can't seem to find a solid answer for and that's disabling the Azure MFA. We use Duo for our MFA (we have resources that cannot connect with Azure MFA) and I have the Conditional Access setup to require Duo MFA on login.

What will happen to O365 object when synced ADDC died?

Have anyone experienced a situation where the ADDC died and no longer talk to Azure Sync server? What will happened to o365 cloud sync object?

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