PowerShell – killyvehy

When was a mailbox created

Get-Mailbox <mail address or alias> | select-object WhenCreatedUTC, Name

Remove EOL Automapping

Automapping is an Exchange & Exchange Online feature which automatically opens mailboxes with Full Access permissions in a delegate’s Outlook client.

Remove the access permissions. This also removes automapping.

Logon to Azure EOL (with MFA)

Business@contoso.ie is the mailbox being shared.
anna.grimm@contoso.ie is the account that has the access rights.

In EOL PowerShell

Remove-MailboxPermission -Identity “Business@contoso.ie” -User “anna.grimm@contoso.ie” -AccessRights FullAccess

Confirm

Are you sure you want to perform this action?

Removing mailbox permission Identity:”Business@contoso.ie” for user “anna.grimm@contoso.ie” with access rights “‘FullAccess'”.

[Y] Yes [A] Yes to All [N] No [L] No to All [?] Help (default is “Y”): select A

You might get this error
WARNING

Can’t remove the access control entry on the object “User” for the user account because the ACE doesn’t exist on the object.

So use

Remove-MailboxPermission -Identity “Business@contoso.ie” -User “anna.grimm@contoso.ie” -AccessRights FullAccess –Confirm:$false –BypassMasterAccountSid

Re-add the permissions but without Automapping

Add-MailboxPermission -Identity “Business@comtoso.ie” -User “anna.grimm@contoso.ie” -AccessRights FullAccess -AutoMapping:$false

Use EOL PowerShell with MFA

Import-Module -Name ExchangeOnlineManagement
Connect-ExchangeOnline -UserPrincipalName <Azure admin account UPN>

This brings up a small logon web window. Input the password and select the MFA authentication method. On success PowerShell will finishing connecting to EOL.

Mailbox Rules

Get rules list

Get-InboxRule -Mailbox <mailbox name or alias>

Get detail on each rule

Get-InboxRule -Mailbox <mailbox name or alias> -Identity “<rule name>” | Select -Property *

Disable Rule

Disable-Inboxrule -identity “<Rule name>” -mailbox <mailbox name or alias>

Remove Rule

Remove-Inboxrule -identity <Rule Name> -mailbox <mailbox name or alias>

Get All Shared mailboxes permissions

Get-Mailbox -RecipientTypeDetails SharedMailbox -ResultSize:Unlimited | Get-MailboxPermission | select identity,user,accessrights | where { ($_.User -like ‘@‘) } | Export-Csv -path C:\temp\Shared.csv -NoTypeInformation

EMS Not working

Sometimes an Exchange server installation goes bad and EMS will not launch from the Start Menu. This post helps to get a local EMS when you start to cleanup or want put things right.

Run these 2 commands in order on the Exchange server

exshell.psc1

exchange.ps1

Search a user’s mailbox for meetings

Search-Mailbox -identity Jbloggs@contoso.com -SearchQuery ‘Kind:meetings AND From:peter@xyz.com AND Subject:”Managers Monthly Meeting”‘ -TargetMailbox myaddress@contoso.com -TargetFolder ExchangeSearches -LogLevel full

Assign full permissions for a user to another users calendar

Cannot assign folder permissions in mixed hybrid environment i.e. cannot grant a M365 user calendar permissions to an On-Prem 2016 mailbox or vice versa.

john@contoso.com is the calendar being shared
scahill@xyz or dirk@contoso.de is the person who is being granted permission

Get Existing Permissions

Get-MailboxFolderPermission -Identity john@contoso.com:\Calendar

If user is not English speaking get calendar or other folder local name using
Get-MailboxFolderStatistics -Identity dirk@contoso.de -FolderScope Calendar

Get the existing permissions using the local calendar name
Get-MailboxFolderPermission -Identity dirk@contoso.de\Kalendar

Grant Edit Permissions

Set-MailboxFolderPermission -Identity john@contoso.com:\Calendar-User <alias> -AccessRights Editor

Grant Manage Permissions

Add-MailboxFolderPermission -Identity john@contoso.com:\Calendar -User scahill@xyz -AccessRights Editor -SharingPermissionFlags Delegate,CanViewPrivateItems

Note -SharingPermissionFlags is cloud only

Grant Free/Busy Permissions Only

Add-MailboxFolderPermission -Identity john@contoso.com:\Calendar -AccessRights AvailabilityOnly -User scahill@xyz.com

Grant Read-Only Permissions

Add-MailboxFolderPermission -Identity john@contoso.com:\Calendar -AccessRights Reviewer -User scahill@xyz.com

Grant Limited Details Permissions

Set-MailboxFolderPermission -Identity john@contoso.com:\Calendar -User normilg -AccessRights Editor – scahill@xyz.com -SharingPermissionFlags Delegate,CanViewPrivateItems

Remove Permissions

Remove-MailboxFolderPermission -Identity john@contoso.com:\Calendar -User scahill@xyz.com

Calendar Sharing Rights aka Access Rights

Author: CreateItems, DeleteOwnedItems, EditOwnedItems, FolderVisible, ReadItems

Contributor: CreateItems, FolderVisible

Editor: CreateItems, DeleteAllItems, DeleteOwnedItems, EditAllItems, EditOwnedItems, FolderVisible, ReadItems

None: FolderVisible

NonEditingAuthor: CreateItems, FolderVisible, ReadItems

Owner: CreateItems, CreateSubfolders, DeleteAllItems, DeleteOwnedItems, EditAllItems, EditOwnedItems, FolderContact, FolderOwner, FolderVisible, ReadItems

PublishingEditor: CreateItems, CreateSubfolders, DeleteAllItems, DeleteOwnedItems, EditAllItems, EditOwnedItems, FolderVisible, ReadItems

PublishingAuthor: CreateItems, CreateSubfolders, DeleteOwnedItems, EditOwnedItems, FolderVisible, ReadItems

Reviewer: FolderVisible, ReadItems

Set “Out of Office” on Mailbox with PowerShell

Dates are 6th April 2021 to 7th April 2021 and are always in American format (mm/dd/yyyy)

Uses email address

Set-MailboxAutoReplyConfiguration -identity mary.raymond@XYZ.com -AutoReplyState scheduled -starttime “04/06/2021” -endtime “04/07/2021 08:00:00” -ExternalAudience all -InternalMessage $message -ExternalMessage $message

Set-MailboxAutoReplyConfiguration -identity Emma.johnson@xyz.co.uk -AutoReplyState scheduled -starttime “04/06/2021” -endtime “04/07/2021” -ExternalAudience all -InternalMessage “I am currently out the office and will be returning on 7th April 2021.” -ExternalMessage “I am currently out the office and will be returning on 7th April 2021.”

Uses mail alias

Set-MailboxAutoReplyConfiguration <alias> -AutoReplyState enabled -ExternalAudience all -InternalMessage “This email address is no longer in use. Please email jimmy.parker@XYZ.com, Thanks” -ExternalMessage “This email address is no longer in use. Please email jimmy.parker@XYZ.com, Thanks”

Set-MailboxAutoReplyConfiguration <alias> -AutoReplyState scheduled -starttime “04/06/2021” -endtime “04/07/2021” -ExternalAudience all -InternalMessage “I’m currently out of the office and this mailbox is not being monitored. If you have any queries which need responding to please contact my manager Mark Mende by email mark.mende@xyz.co.uk” -ExternalMessage “I’m currently out of the office and this mailbox is not being monitored. If you have any queries which need responding to please contact my manager Mark Bloggs by email mark.bloggs@xyz.co.uk”

If part of the message has a $ sign – Use single quotes instead of double quotes

Set-MailboxAutoReplyConfiguration -identity risk@xyz.com -AutoReplyState enabled -ExternalAudience all -InternalMessage ‘Thank you for your mail. Please note that this is an unmonitored mail box. Please redirect your mail to $Risk@xyz.com‘ -ExternalMessage ‘Thank you for your mail. Please note that this is an unmonitored mail box. Please redirect your mail to $Risk@xyz.com‘

To check your results afterwards:

Get-MailboxAutoReplyConfiguration –Identity servicing@xyz.co.uk

To turn off auto-replies

Set-MailboxAutoReplyConfiguration -Identity <alias or email> -AutoReplyState disabled

To turn off auto-replies and clear the reply text

Set-MailboxAutoReplyConfiguration <alias or email> –AutoReplyState Disabled –ExternalMessage $null –InternalMessage $null

HTML Multiline Message, use tags for line breaks

Set-MailboxAutoReplyConfiguration -identity <alias or email> -AutoReplyState enabled -ExternalAudience all -InternalMessage “This mailbox is currently closed and is not monitored. Please contact the Service Desk using your company’s number below.. XYZ Europe: +01 123 456 7890 Alternatively please log your issue on Service Desk Online through your company Intranet.” -ExternalMessage “”This mailbox is currently closed and is not monitored. Please contact the Service Desk using your company’s number below.. XYZ Europe: +01 123 456 7890 Alternatively please log your issue on Service Desk Online through your company Intranet.”